Why are enzymes necessary?

You have 3 moles of a substance. Which statement is true? You have six times the number of particles that are in 12 grams of carbon-12. You have the same number of particles as in 12 grams of carbon-12.

Scientific notation for 706000

Where are most insect eggs laid on a corpse? * A) On the head only. B) Under the corpse. C) Only on exposed skin D) Body openings/wounds

Which of the following is a postulate of the kinetic molecular theory? A) when gas particles hit something, they gain energy. these collisions are elastic.

When acetylene gas, C2H2, reacts with oxygen gas the products are carbon dioxide and water. a. What is the balanced equation? b. How many grams of water can be formed from the consumption of 8.98 grams of acetylene c.

Describe the direction of the wind movement around the center of high air pressure

How much volume (in cm^3) is gained by a person who gains 11.5 lbs of pure fat?

A compound contains 69.94 percent iron and 30.06 percent oxygen. what is its molecular formula if the molar mass of the compound is 199.55 grams per mole?

What is the formula for carbon and chlorine

A pair of ice tongs is a double: first-class lever second-class lever third-class lever