Chemistry Honors - JIGMEY - 8-8 Assignments
- Instructors
- Term
- 2021-2022 School Year
- Description
-
Upcoming Assignments
No upcoming assignments.
Past Assignments
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ice cream lab
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The pressure of the oxygen gas inside a canister with a fixed volume is 5.0atm at 15oC. What is the pressure of the oxygen gas inside the canister if the temperature changes to 263K? Assume the amount of gas remains constant. show the math P1/ T1 = p2/T2
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1. A gas at 0.000 celsius and 10.0 L expands to 20.0 L. What is the new temperature in celsius. (First, ya’ gotta convert initial temperature to Kelvin, then do the calculation. Finally, you have to convert your answer, in Kelvin, to celsius!) 2. A gas at 200 celsius and 10.0 L expands to 20.0 L. What is the new temperature in celsius.
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Charles law prblem
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Final SGO Test
make sure write your name
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boyle law problem
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explains why gases behave as “ideal” gas particles…?
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Gas laws ( class work )
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How do gas molecules move? answer choices
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What does Boyle's law relate to? answer choices
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Mole lab activity
please the lab activity and upload here
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. How many atoms are present in a 13.5 gram sample of beryllium? answer choices
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What is the mass of 1.2 x 1024 atoms of C? answer choices
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mole questions
Mole-Mass Conversions
How many moles in 28 grams of CO2 ?
What is the mass of 5 moles of Fe2O3 ?
Find the number of moles of argon in
452 g of argon.
Find the grams in 1.26 x 10-4 mol of
Copper
Find the mass in 2.6 mol of lithium
bromide.
How many moles in 28 grams of CO2 ?
What is the mass of 5 moles of Fe2O3 ?
Find the number of moles of argon in
452 g of argon.
Find the grams in 1.26 x 10-4 mol of
Copper
Find the mass in 2.6 mol of lithium
bromide.
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How many atoms are present in a 0.0254 mole sample of gold? answer choices
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Moles and Molar Mass Worksheet
Determine
the number of moles in each of the following:
6.
23.5 grams of Co
7.
216 grams of Ag
8.
.0759 g of W
9.
467.1 kg of K
Determine
the mass of each of the following:
14.
35.1 mol of K
15.
1.04 mol of Cu
16.
.0250 mol of Au
17.
1.90 X 10-2 Mol Of U
the number of moles in each of the following:
6.
23.5 grams of Co
7.
216 grams of Ag
8.
.0759 g of W
9.
467.1 kg of K
Determine
the mass of each of the following:
14.
35.1 mol of K
15.
1.04 mol of Cu
16.
.0250 mol of Au
17.
1.90 X 10-2 Mol Of U
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What is the molar mass of H2O? answer choices
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Which of the following statements regarding the mole is INCORRECT? answer choices
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How many atoms of iodine are in a mole of iodine? answer choices
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Determine the molar mass of the following compounds. 1. KF 2. NaOH 3. Ca3N2 4. MgSO4 5. Ca(OH)2 Determine the number of moles in each of the following: 6. 4.53 x 1023 atoms of Na 7. 7.899 x 1023 atoms of Cu 8. 1.42 x 1024 atoms of Ti (Titanium) 9. 5.08 x 1022 atoms of Fe
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Determine the molar mass of each of the following. 1. Na 2. Cu 3. Si 4. Cl 5. Pb Determine the number of atoms in each of the following: 18. 2.35 mol of Rb 19. 1.79 mol of S 20. .0500 mol of Ar 21. 105 mol of Br
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What is Avogadro's Number? answer choices
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The Mole
To answer the questions please refer your textbook page from 320 to 324
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Avogadro's number of representative particles is equal to one_____. answer choices
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CHEMISTRY: COUNTING ATOMS IN COMPOUNDS WORKSHEET
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The mass of one mole of an element is equal to
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Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water? answer choices
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Types of Chemical Reactions POGIL
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What is a double replacement?
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A decomposition reaction can be recognized because it has... answer choices
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Which of the following is the general formula of a synthesis reaction? answer choices
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How many HCl molecules do you need to balance this equation? Mg + __HCl ---> MgCl2 + H2 answer choices
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balancing chemical equation
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chapter quiz
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Balance this equation: H2 + Cl2 ---> HCl answer choices
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What is the number before a chemical formula called? Example: 2H2 + O2 ---> 2H2O answer choices
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a substance that is formed as the result of a chemical reaction answer choices
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classwork balancing equation
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https://www.innerorbit.com/schools/students/?qid=14865
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What does the Law of Conservation of Mass state? answer choices
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basic chemical reaction quiz
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Provides evidence that a chemical reaction has occurred.
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law of conservation
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basic chemical reaction
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chemical reaction
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Calculate the percentage composition of each of the following compounds. Show your work and always include units. 4. CaSO4 Mass of % O 5. (NH4) 2SO4 Mass % of H and N 6. Zn3(PO4) 2 Mass % of Zn 7. Mg(NO3) 2 Mass % of Mg 8. KCl Mass % of K 9. H2O Mass % of O 10 . LICl Mass % of Li
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What is the molar mass of table salt (NaCl)? answer choices
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Calculate the molar masses of each of the following compounds. Show your work and always include units. 5. (NH4) 2SO4 6. Zn3(PO4) 2 7. Mg(NO3) 2 8. KCl 9, H2O 10. Cr2O7
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How many atoms are there TOTAL in: H2SO4
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Calculate the molar masses of each of the following compounds. Show your work and always include units. 1. Ca3P2 2. Ca(OH) 2 3. Na2SO4 4. CaSO4
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Bonding project
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Which is the correct formula for: three hydrogen (H) one sulfur (S) four oxygen (O)
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polyatomic ion formula
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How many atoms are there in the compound MgCO3?
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binary comp 2
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The formula of copper(II) oxide is
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binary compound
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What is the chemical formula of Sodium chloride?
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. What is the chemical formula of Magnesium chloride?
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https://www.youtube.com/watch?v=URc75hoKGLY&t=453s
please write three comments based on the the video,
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electron configurations and orbital notation
Click on the link below to start the game
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Electrons, Wavelength, Frequency, Light
Click on the link below to start the game
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Unit test
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online flame test lab
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light worksheet
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Calculate the wavelength of the yellow light emitted by the street light, if the frequency of the radiation is 5.10x1014Hz.
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The frequency of violet light is 7.5x10 ^14 Hz. What is its wavelength?
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Red light has a wavelength of 675 x 10-9 m. What is its frequency?
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light travels
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A wave has a frequency of 22 Hz and a wavelength of 4.0 m. What is its velocity? 2. What is the frequency of a wave if its wavelength is 3.6 x 10–9 m and its velocity is 3.0 x 108 m/s? 3 A photon has an energy of 4.00 x 10–19 J. Find… a. the frequency of the radiation. b. the wavelength of the radiation.
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Electron configuration worksheet
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What atom matches this electron configuration? 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10
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The electron configuration of an atom is 1s 2 2s 2 2p 6. The number of electrons in the atom is
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What electron configuration matches an oxygen atom?
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open ended questions ( mid term0
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electron confi
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. What electron configuration matches an oxygen atom? answer choices
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What is the electron configuration of sodium?
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valence electron worksheet
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Which element has similar chemical properties as sodium but has 7 energy levels?
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What group number are the halogens found?
do now
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Periodic table puzzle ( classwork)
Classwork , please try to complete on time
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periodic table assignment
please refer the ppt and internet to answer the package.
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What are the elements in group 1 (the far left) of the periodic table called?
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Each column in the periodic table is called a
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In 1869, Dmitri Mendeleev developed the first periodic table, organizing the elements according to atomic weight. When he ordered the elements, he noticed that there were patterns of repeating properties. The modern periodic table sequences elements from left to right by atomic number. This was the first person to organize a periodic table.
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The periodic table is a chart that organizes the elements based on their atomic properties. Elements in the periodic table are organized according to the periodic law. The periodic law states that chemical and physical properties of elements are periodic functions of their atomic numbers (the number of protons in the nucleus). As the atomic number of elements increases, different elements display similar characteristics at regular intervals. Periodic law states that elements are arranged _______________________________________________________________.
Answer yours do now by doing through the PowerPoint of on periodic table and video link posted under the material section of googleclassroom.
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Isotopes lab
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What quantities vary between isotopes of an element?
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https://www.albert.io/assignment/f5a9b5f2-6f0b-476b-b56d-5a635714657b
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An element with 4.35% have a mass of 49.9461 amu, 83.79% have amass of 51.9405 amu, 9.50% have a mass of 52.9407 amu, and 2.36% have a mass of 53.9389amu
do now
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24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu. What is the average mass of this element?
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1. Calculate the average atomic mass of magnesium using the following data for three magnesium isotopes. Isotope mass (u) relative abundance Mg-24 23.985 78.70% Mg-25 24.986 10.13% Mg-26 25.983 11.17% 2. Calculate the average atomic mass of iridium using the following data for two iridium isotopes. Isotope mass (u) relative abundance Ir-191 191.0 37.58% Ir-193 193.0 62.42% 3. Lithium has two naturally occurring isotopes: lithium-6 and lithium-7. If the average atomic mass of lithium is 6.941 amu, which isotope is the most abundant? How do you know?
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Magnesium exists as the three isotopes shown. What is the average atomic mass of magnesium?
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1. What is the atomic mass of hafnium if, out of every 100 atoms, 5 have a mass of 176, 19 have a mass of 177, 27 have a mass of 178, 14 have a mass of 179, and 35 have a mass of 180.0? 2. Iodine is 80% 127 I, 17% 126 I, and 3% 128 I. Calculate the average atomic mass of iodine. 3. Calculate the average atomic mass of gold with the 50% being gold-197 and 50% being gold-198. 4. Calculate the average atomic mass of lithium, which occurs as two isotopes that have the following atomic masses and abundances in nature: 6.017 u, 7.30% and 7.018 u, 92.70%.
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isotopes doc
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12 protons and 13 neutrons
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An atom that is an isotope of potassium (K) must...
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What do these isotopes of carbon all have in common?
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bohr model
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In borhs model, Orbitals are also known as
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What is the atomic number of this atom?
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bohr model project
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What is a Bohr Model?
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What element is represented in this Bohr Model?
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What is the name of this element?
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An atom contains three elementary particles: electrons, neutrons, and protons.
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Rutherford Gold foil experiment
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. What did the Plum pudding model suggest about the structure of atoms?
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Thomson model of atom
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Person that discovered electrons using the cathode ray experiment. He created the plum pudding model
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Build an atom Lab simulation
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How many neutrons does the an element with an atomic number of 3 and a mass of 7 contain?
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In order for an atom to be neutral what has to be true?
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The number of protons is equal to
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What is the sum of an atom's protons and neutrons called?
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Protons and neutrons are found in the center of the atom called the:
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element and compound
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1. What was the first particle discovered inside an atom?
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what is mixture ?
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Element and Compound
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chromatography lab
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--------------------------------- is a separation technique that produces highly pure solids.
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Explain why the rusting of an iron bar decreases the strength of the bar. A pat of butter melts and then burns in a hot frying pan. Which of these changes is physical and which is chemical?
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Which of these is not a homogeneous mixture?
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physical and chemical properties
Please answer the question using textbook
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A 17.0-g sample of ammonia, NH3, contains 3.0-g of hydrogen. What percentage of ammonia is hydrogen? How many grams of nitrogen does the sample contain?
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Which of the following is not evidence of a chemical reaction?
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1 An 18-g sample of element A combines completely with a 4-g sample of element B to form the compound AB. 2What is the mass of the compound formed? 2 Ibuprofen has the chemical formula C13H18O2. It is 75.69% carbon, 8.80% hydrogen, and 15.51% oxygen. How many mg of carbon does a 200.0-mg tablet of ibuprofen contain? 3The chemical formula for baking soda is NaHCO3. A 168.02-g sample of baking soda contains 45.98 g of sodium, 2.02 g of hydrogen, 24.02 g of carbon, and 96.00 g of oxygen. What is the mass percentage of each element in baking soda?
class work
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https://www.albert.io/assignment/015f2242-8a68-4cf8-8601-51fb4e0a91ae
please your test
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What distinguishes physical properties from chemical properties?
do now
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What characteristics identify a substance?
do now for today
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Post your Lab report Here
Follow all the instruction
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1. The density of silver (Ag) is 10.5 g/cm3. Find the mass of Ag that occupies 965 cm3 of space. 2. A 2.75 kg sample of a substance occupies a volume of 250.0 cm3. Find its density in g/cm3. 3. Under certain conditions, oxygen gas (O2) has a density of 0.00134 g/mL. Find the volume occupied by 250.0 g of O2 under the same conditions. 4. Find the volume that 35.2 g of carbon tetrachloride (CCl4) will occupy if it has a density of 1.60 g/mL.
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What is the formula for density?
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temperature conversion using google app
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A temperature scale in which water freezes at 0°C and boils at 100°C.
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A measure of how hot or cold something is; specifically a measure of the average kinetic energy of the particles in an object.
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How many significant figures are in each measurement? A) 22 metersticks B) 0.070 80 m C) 98,000 m
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scientific notation
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How many significant digits are in each of the following examples? 1) 47.1 2) 9700. 3) 0.005965000 4) 560 5) 0.0509 6) 701.905 7) 50.00 8) 50.012 9) 0.000009 10) 0.0000104
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. The rule of scientific notation is to write all exponents with a base of ____.
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Convert this number into scientific notation: 0.068
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conversion factor
skip 1-6
and start doing from 7
and start doing from 7
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1.(6.02 x 10 ^23) (8.65 x 10^4) 2. (6.02 x 10 ^23) (9.63 x 10 ^2) 3. 5.6 x 10^–18/ 4. (6.02 x 10 ^23) (–5.11 x 10 ^–27) 8.9 x 10^8
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quiz 1
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Express each of the following in scientific notation. 78,000 5. 16 2. 0.00053 6. 0.0043 3. 250 7. 0.875
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Is 20 g greater than, less than, or equal to 2 kg?
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7,000 g = ____ kg
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How many seconds are in 4.3 years? 1. Convert 2875 cm3 to liters. 2. Convert 5.2 cm of magnesium (Mg) ribbon to mm of Mg ribbon 3Convert 0.049 kg sulfur (S) to g of S. 4. Convert 0.020 kg of tin (Sn) to mg of Sn.
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We use the BASE UNIT of ______________ to measure liquid volume
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1.Determine the number of mm in 1600 m. 2. Determine the number of m in 1600 mm. 3. Determine the number of mm in 14.3 cm. 4. How many seconds are in 4.3 years?
exit ticket
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Research on solubility as a factor that affects the digestion of foods in humans would be an example of ______________.
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What are the SI base units for time, length, mass, and temperature?
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. Should experiments be repeated over and over to see if the results are the same each time?
do now
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scientific method
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quiz for lab safty
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A series of steps used by scientists to solve a problem or answer a question
do now
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Lab Safety contract sign form
I ...................of Class have read and agree to follow all of the safety rules in this contract. I will follow my teacher’s directions. I am aware that failure to follow these rules is dangerous and may result in my being barred from the laboratory, and that this may result in a failing grade. Student Signature Date Dear Parent or Guardian: Your signature indicates that you have read these safety rules and have instructed your child to follow these rules and procedures in the science laboratory. Parent/Guardian Signature
f Class have read and agree to follow all of the safety rules in this contract. I will follow my teacher’s directions. I am aware that failure to follow these rules is dangerous and may result in my being barred from the laboratory, and that this may result in a failing grade. Student Signature Date Dear Parent or Guardian: Your signature indicates that you have read these safety rules and have instructed your child to follow these rules and procedures in the science laboratory. Parent/Guardian Signature
f Class have read and agree to follow all of the safety rules in this contract. I will follow my teacher’s directions. I am aware that failure to follow these rules is dangerous and may result in my being barred from the laboratory, and that this may result in a failing grade. Student Signature Date Dear Parent or Guardian: Your signature indicates that you have read these safety rules and have instructed your child to follow these rules and procedures in the science laboratory. Parent/Guardian Signature
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The branch of science that studies what "Stuff" is made of and how it interacts with other "Stuff".
do now
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What are the common steps of scientific methods?
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Pre test chemistry 2021
make sure write your name
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If you do not understand a direction or part of a lab procedure, you should
Do now