An atom is

a. the smallest unit of matter that maintains its chemical identity.

b. always made of carbon.

c. smaller than an electron.

d. the smallest unit of a compound.

Why do solids expand on heating?

How many moles of CaCl2 will be produced from 1.4 moles of HCl reacting with calcium hydroxide A. 2.8 moles B. 0.70 moles

Why is it important to monitor pH levels in natural bodies of water?

How many people thought a blueberry was nicer fruit than a banana

What type of reaction is iron metal shavings are added to hydrochloric acid?

A laboratory experiment requires 250 millimeters of water for boiling. It also requires 100 millimeters of water for a cooling process.

Which set of procedures and observations indicates a chemical change? A) Ethanol is added to an empty beaker and the ethanol eventually disappears. B) A solid is gently heated in a crucible and the solid slowly turns to liquid.

If 100 grams citric acid react with 100 g baking soda how many grams of carbon dioxide?

What state of matter undergoes changes in volume most easily? a. solidb. liquidc. gasd. frozen

What was the result of the atomic theory?