What is the approximate percent efficiency of nuclear power?

a. 92%

b. 100%

c. 25%

d. 8%

Which nuclear emission moving through an electric field would be deflected toward the positive electrode? A.) Alpha Particle B.) Beta Particle C.) Gamma Radiation D.) Proton

Which element is the best conductor of electricity? A. Argon B. Bromine C. Lithium D. Radon

What is the number of molecules in 500cm? of oxygen under room conditions? 22 a. 1.25 x 10 22 b. 1.34 x 10 c. 3.0 x 10 22 d. 3.0 x 10 26 Answer:

If 20.0 grams of Ca combines completely with 16.0 grams of S to form a compound l, what is the percent composition of Ca in the compound?

The chemical formula for table sugar is C 12 H 11 O 22. What can you tell from this formula? There are 12 electrons in a carbon atom. The ratio of carbon atoms to hydrogen atoms in a molecule of sugar is 2 to 1.

A 1.0 g sample of food reacts with oxygen in a calorimeter containing 500 g of water. The temperature rises 10°C. What is the energy content of the food?

Looking at the diagram showing hydrochloric acid being added to water. Which statement best explains what is taking place

How many dozens of particles of dust are in 2.45 grams if each dust particle has a mass of 2.51 x 10-4 grams?

What is the number of mole equivalents of H2 produced by the reaction of 1 mole equivalent of Mg (m) with H2SO4 (aq) ?

For two variables in a direct proportion, what is the result of doubling one variable? the other variable is doubled the other variable is halved the other variable stays constant