What does pressure measure
A. The temperature of a substance
B. The number of molecules present
C. The force of colliding particles
D. The volume occupied by particles

How have the greenhouse gasses increased from the year 2000 to 2018

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )