Adding heat energy causes molecules to slow down. true or false?

You observe that the snow pile on your yard has decreased in size although the temperature has not been above freezing since the last snowfall what most likely occurred

Used by science for all measurements A.) Liter B.) Metric system C.) British system D.) Meter

Which element often shares property's A. those in a period B. those in a group C. those with the same color D. those in a horizontal row

Taken all together the reactions of the human body are A. neutral. B. exothermic. C. endothermic. D. spontaneous.

Explain whether nitrogen atoms will form bonds with other atoms.

Sulfur has 16 electrons. When it combines with magnesium. It acquires A - 2 charge. How many electrons does it have now?

When 17.0 grams of an unknown metal is cooled from 35.0°c to 10.0°c it releases 862 joules of energy. what is the specific heat capacity of the unknown metal?

Calculate the resulting ph obtained by mixing 16.5 g hcl and 22.6 g nacl in water to create 482 l solution.

What is the ph of an aqueous solution with [h3o+] = 4*10-13 m?

What are called protons? give examples?