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

What is the ph of a 3x10-8M H + solution

If the formula for potassium chlorate is KClO3 and the formula for magnesium fluoride is MgF2, then what isthe formula for magnesium chlorate?

Which represents the balanced double displacement reaction between Sodium Chloride (Na+Cl-) and Copper Sulfate (Cu2 + (SO4) 2-) ?

Calculate the activation energy that leads to a doubling of the rate of reaction with an increase in temperature from 25∘c to 35∘c.

Which element would be expected to have similar physical and chemical properties as oxygen, and why?

Which part of the circulatory system contains blood rich in carbon dioxide (1) arteries (2) alveoli (3) veins (4) capillaries

Andrea was watching her brother in the ocean and noticed that the waves were coming into the beach at a frequency of 0.571429 Hz. How many waves hit the beach in 28 s? Answer in units of waves.

How many chloride ions are needed to cancel the 2 + charge of magnesium in magnesium chloride?

How many liters of air are in: A) a room that measures 10.0 ft * 11.0 ft and has an 8.00 ft ceiling? B) a room that measures 11.0 ft x 11.0 ft and has a 10.0 ft ceiling? 1 in. = 2.54 cm (exactly); 1 L = 103cm3

The masses of reactants is always greater than the masses of the products in a chemical reaction, because the products are combined together. TRUE FALSE