How many hydrogen atoms are in the following molecule of ammonium sulfide? (NH4) 2S

a. 2

b. 4

c. 8

d. 16

Why is it important to measure the mass of an atom?

Krispy Kreme Doughnuts decide to donate $10,000 to a classroom for a party how many donuts did they donate in total

When a student adds benedict's solution to a clear solution, the solution turns orange. the student can conclude that the solution has a high concentration of which biomolecule?

The unit cm3 is used to express

Most fruit juices are a solution of water, sugar, and fruit-specific chemicals. in this solution, identify the solvent and solutes.

The surface of the earth is divided into more than 50 large plates

What is the net ionic equation for AgNO3 (aq) + K2SO3 (aq) ?

Oil and water a combined to make salad dressing. Physical Change? Chemical Change? Both?

How is water different from most liquids? It expands when it freezes. It contains chemical bonds. It has ionic and covalent bonds. It boils when it is heated.

In the thermal decomposition of copper carbonate, the black solid left behind weights less than the original copper carbonate. Why?