What happens when sunlight strikes a photovoltaic cell?

A:electrons are released, causing a flow of electrical current

B:atoms are split, resulting in a release of energy

C:small tubes of water are heated, producing flow of energy

What were the four major models of the atom that lead up to the modern day atom model?

What is the mass in grams of 13.2 amu

Which of these mixtures could be most easily separated by filtration?

Which two substances can not be broken down by chemical change? (1) C and CuO (3) CO2 and CuO (2) C and Cu (4) CO2 and Cu

Which of the following measurements represents the most matter? 3.5 kg 350 g 3.5 x 103 hg 3.5 x 104 cg

A farmer uses water to irrigate his potato crops. Which roles of water does this examplify

How was helium first discovered?

When is alpha particle emission most likely to occur? A. When the nucleus has more than 83 protons. B. When the ratio of neutrons to protons in the nucleus is too high to be stable. C. When the nucleus has a mass of more than 83 amu. D.

Researchers used a combustion method to analyze a compound used as an antiknock additive in gasoline. A 9.394 mg sample of the compound yielded 31.154 mg of carbon dioxide and 7.977 mg of water in the combustion.

The formula for binary ionic compound formed between cesium and fluorine