Calcium atoms have two electrons in the outermost shell. As a result, you would expect calcium to form ions with a charge of

A) + 1.

B) + 2.

C) - 1.

D) - 2.

E) 0.

Match the three phases of matter. 1. fixed volume; variable shape gas 2. fixed volume; fixed shape liquid 3. variable volume; variable shape solid

Positive ions from a base and negative ions from an acid forma

What are 6 plant cell organelles that are not in animal cells

Polished metals have a metallic luster, which means ...

What is one chemical property of iron? A) Iron is malleable. B) The density of iron is 7.86 g/cc. C) Iron combines readily with oxygen. D) Iron is a good conductor of electricity and heat.

A sulfuric acid solution containing 571.6 g of H2SO4 per liter of solution has a density of 1.329 g/cm3. Calculate (a) the mass percentage, (b) the mole fraction, (c) the molality, (d) the molarity of H2SO4 in this solution.

Darwin visited the Galapagos Islands several times. He observed some very unusual species. One species of bird, the finch, interested him. He observed some differences in the finches living on different islands.

Why does land heat up more faster than water?

Which gas law has assumptions of a fixed amount and temperature of a gas

Which scientific tool is the most useful when trying to convert a known amount of grams of water to moles of water?