Why does ice have a different density than liquid water?

A. It has lighter molecules. B. It has more molecules. C. It has a different amount of space between molecules. D. It has several different kinds of molecules.

Sodium ion (Na+) and calcium ion (Ca2+) produce nearly the same color in a flame test (yellow and yellow-orange, respectively). Describe a way to differentiate between the two using a solution of Na2CO3 and write the correct balanced equation (s).

How many molecules are there in 5.0 g of methyl alcohol, ch3oh?

At room temperature and pressure what is the volume of one mole of oxygen?

Worn away statue Mechanical? or Chemical?

How many ways are there to classify matter? List all of them.

What is the mass in grams of 390 mL

Around 1910, Rutherford bombarded gold foil with alpha particles. Most of the alpha particles passed straight through. To his surprise, a smaller number were deflected by 180°. This summary recounts the scientific discovery of A.

What is the density? Mass = 120 g Volume = 96 mL

A spoonful of salt is stirred into a pot of water. The salt is a

What are some catchy projects titles for the question, "What liquids cause the most tooth decay?"