Whats the formula for NH4 + SO32-

When two or more atoms share electrons, the bond is referred to as A. an ionic bond. B. a polar bond. C. a covalent bond. D. a nonpolar bond.

A chemical reaction is carried out in a closed container. The energy absorbed by the chemical reaction is 50 kJ. What is the energy liberated from the air or the walls of the container? A) 50 kJ B) 75 kJ C) 25 kJ D) 100 kJ

When a solid compound is formed from chemicals which are in solution, it is called a?

Controlled variable in an experiment is called

What happens if you remove all of the carbon dioxide from the atmosphere?

Is iron a substance or mixture?

How can scientists study the composition of distant stars?

How many grams of naoh are needed to make 750 ml of a 2.5 (w/v) solution?

During an autopsy, all organs are removed from the body, weighed, and examined for any damage that might reveal information about the cause of death. True or False?

QUIZ Instructions D Question 2 An increase in temperature will increase the rate of a reaction True False