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Averi Wilcox
How many valence electrons do the halogens possess?
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ChemistryChemistry
Kaden Graves
How calculate how many milliliters of glycerin (specific gravity=1.26) will have a mass of 0.75 lbs?
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ChemistryChemistry
Toodles
Label each reactant as either a Bronsted-Lowry acid or a Bronsted-Lowry base.

a. HF (aq) + H2O (l) - -> H3O + (aq) + F - (aq)

HF (aq) ["Bronsted-Lowry acid", "Bronsted-Lowry base"]

H2O (l) ["Bronsted-Lowry acid", "Bronsted-Lowry base"]

b. HCO3 - (aq) + H2O (l) - -> H2CO3 (aq) + OH - (aq)

HCO3 - (aq) ["Bronsted-Lowry base", "Bronsted-Lowry acid"]

H2O (l) ["Bronsted-Lowry acid", "Bronsted-Lowry base"]
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ChemistryChemistry
Braeden Webb
What are three conditions that can cause chemical reactions to occur?
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ChemistryChemistry
Ruben Mcfarland
Facts about heat absorption

and simple questions about heat absorption with answer
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Rowan
You measure a piece of wood with a meter stick and is it exactly one meter long. How many centimeters long is it?
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ChemistryChemistry
Selena Lin
When salt dissolved in water, what type of change occurs?

A) physical only

B) chemical only

C) physical and chemical
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Isabelle Kirby
Select all of the characteristics that define matter. A.) Matter has mass. B.) Matter has volume (takes up space). C.) Atoms and compounds are made out of matter. D.) All matter has the same density.
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Tripp Santana
The science of observing and forecasting weather conditions is called
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Brendan Cox
How many joules of heat are lost by 3580 KG granite as it goes from 41.2°C to - 12.9°C
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Johanna Mcknight
Why does coqi frogs make noise?
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Killian Beck
A block of wood has a mass of 120g and a volume of 200cm what is the density
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Ali Sanford
Which of the following observations likely describes a physical change?
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Davion
F chlorine gas is bubbled through an aqueous solution of sodium iodide, the result is elemental iodine and aqueous sodium chloride solution. What kind of reaction took place?
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ChemistryChemistry
Clark Tapia
Why is John Dalton known as the originator of atomic theory? A. He was the first to propose that matter is made of atoms. B. He proved that atoms are divisible in nature. C. He based his theory on philosophical assumptions. D. He could scientifically explain the theory of atoms.
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