Which of the following is a compound?

A. H2O

B. C

C. Ca

Determine the density of an object that has a mass of 149.8 g and displaces 12.1 ml of water when placed in a graduated cylinder.

Why did it require two sodium atoms to complete the Na2O formula unit? Na has + 2 charge and O has - 1 charge. Na has + 1 charge and O has - 2 charge. Na has - 2 charge and O has + 1 charge.

Can someone give a decent explanation to why the answer is N-2?

The elements lithium and oxygen react ex - plosively to from lithium oxide (Li2O). How much lithium oxide will form if 2.73 mol of lithium react? The elements lithium and oxygen react ex - plosively to from lithium oxide (Li2O).

Which is NOT unique to each element A. Proton number B. atomic number C. neutron number D. chemical symbol Reward: A friend

Mixture of sediments deposited by a glacier

What type of mixture will not allow light to pass through a. suspension b. colloid c. solution d. mixture?

What's a mixture when two substances are mixed completely

What are the similarities between molecules and elements

How many valence electrons are available for bonding in silicon