What type of macromolecule stores an organism's genetic information?

The best example of a solution is:

The property that is responsible for the fact that water and oil do not mix is:

Two substances combine producing heat is evidence that a chemical reaction happened.

Elements are pure substances made up of only one kind of:

What increases the rate of a reaction by lowering the activation energy?

The bond due to the electrostatic attraction between adjacent water molecules is called:

A neutral atom contains 18 protons, how many electrons does it contain?

What type of chemical reaction takes place when heat is released into the environment?

Elements in Group 1 in the periodic table of the elements have how many outer electrons?

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