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Skye Prince
ChemistryChemistry
What makes an acid or base strong?
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Aarav Pacheco
ChemistryChemistry
In a laboratory, Carlos places one plate with grape jelly and another plate with cooked brown rice inside an ant farm. The next day, he finds that both plates are filled with ants. Carlos wonders if there are certain household foods that are more effective than others at attracting ants. How could Carlos use the scientific inquiry process to determine which foods are most effective at attracting ants? Check all that apply.
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Avah Cortez
ChemistryChemistry
Which statement is true at STP? (The atomic mass of Zn is 65.39 u.)
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Johnathon Sawyer
ChemistryChemistry
A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume is reduced to 1.8L at a constant temperature?
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Kristin Tucker
ChemistryChemistry
The elements most likely to form more than type of ion are the ...

A. Transition metals

B. alkali metals

C. halogens

D. alkaline earth metals
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Jaelynn Mclean
ChemistryChemistry
Mole-Mass Conversions

How many moles in 28. o grams of Oxygen?

What is the mass of 5.0 moles of Iron?

Find the number of moles of argon in 452 g of argon.

Find the grams in 16.5 mol of Hydrogen.
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Alexa Freeman
ChemistryChemistry
What is equal solute concentration inside and outside of the cell so water moves at equal rates?
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Aussie
ChemistryChemistry
Cl2 + NaBr

which two elements will trade places?
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Marcelo Hatfield
ChemistryChemistry
Choose the compound below that contains at least one polar covalent bond, but is nonpolar.

a. SeBr4

b. HCN

c. ICl3

d. CF4

e. Both B and C are nonpolar and contain a polar covalent bond.
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Guest
ChemistryChemistry
Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KClO3 (is). The equation for the reaction is 2 KClO3 ⟶ 2 KCl + 3 O 2 Calculate how many grams of O 2 (g) can be produced from heating 66.1 g KClO 3 (s).
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Noemi Kramer
ChemistryChemistry
Explain how Beer's law can be applied in food, drug or medical testing
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Kash
ChemistryChemistry
The entropy of a sample of CO2 increases as the CO2 changes from

(1) gas to liquid (3) liquid to solid

(2) gas to solid (4) solid to gas
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Itzel Curtis
ChemistryChemistry
Which one of the following is a kind of organic
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Abraham Potter
ChemistryChemistry
The reaction rates of many spontaneous reactions are actually very slow. Which of these statements is the best explanation for this observation?

a. Kp for the reaction is less than one

b. ÎG° for the reaction is positive

c. The entropy change (ÎS) is negative B)

d. The activation energy of the reaction is large.

e. Such reactions are endothermic
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Armani Osborn
ChemistryChemistry
True or False: The lower the temperature, the faster the reaction at the enzyme will occur.

True

False
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