Which of the following is the most common kind of chemical bond in biological molecules?

a. Covalent

b. Ionic

c. Delocalized

d. Unsaturated

As matter changes it can what?

List three ways in which a balanced chemical equation can be interpreted

If the value for q is + 450 J, what can you conclude about a process? A) it is endothermic and the temperature increased B) it is endothermic and the temperature decreased C) it is exothermic and the temperature increased D) it is exothermic and the

What dose it mean to say that mass is conserved during a physical change?

A certain ore is 33.0% nickel by mass. How many kilograms of this ore would you need to dig up to have 25.0 g of nickel?

Sample of 76 G of NaCl is dissolved to make 1 L of a solution what is the molarity of the solution

If there were no decomposers on Earth, what do you think would happen to organisms when they die? What effect would it have on Earth?

Oceans make the temperaturs of nearby land more extreme ... True or false

In a chemical reaction, atoms are created/rearranged. The atom are joined together in the same/different arrangements after the reaction. The total number of each type of atom is greater/less/The same after the reaction.

Is dry ice subliming, endothermic or exothermic?