Select the correct answer.

What does the law of conservation of energy state?

O A.

Energy can be created from nothing.

OB. Energy cannot be destroyed.

C. Energy cannot change forms.

D.

The total amount of energy in a system changes continuously.

Balance the reaction of c6h12o6 (s) + o2 (g) = co2 (g) + h2o (l)

What is a characteristic of a homogeneous mixture that is a liquid

The coefficients in a chemical equation? A; show the valence electrons for each atom B; are the molar masses of the substances C; show the number of grams of each substance that react D; indicate the number of moles of each substance that react

A 5.63 g sample of solid gold is heated from 21.0 ºC to 32.0 ºC. How much energy (in J and cal) is required?

Identify the following salts as neutral, acidic, or basic. 1. NH4ClO4 2. NH4CN 3. LiF 4. KCN 5. LiNO3 6. NH4Br 7. SrBr2

How is oxygen and nitrogen alike

Does a gas discharge tube filled with boron emit the same wavelength

a certain solution has a molarity of m = 6.39 mol/l and has a volume of v = 0.550 l what is the value of n

Alcohols are polar molecules. true false

If a normal force of 500 N is acting on two surfaces in contact with a coefficient of friction equal to 0.50, what would be the maximum force of static friction?