What Element is H?

a. Calcium

b. copper

c. Tin

d. aluminum

Why do less dense compounds make up Earths crust while the densest compounds make up the core

Two reactants combine to form one new product. Which of the following best describes this type of chemical reaction? Combustion Synthesis Decomposition Single Replacement

Convert 90 centuries to minutes

Stellar equilibrium is balance between what two things

What are some physical and chemical changes that occur as a car ages?

When a sample of gas is cooled in a sealed, rigid container, the pressure the gas exerts on the walls of the container will decrease because the gas particles hit the walls of the container (1) less often and with less force (2) less often and with

Determine molar mass of Mn (ClO3) 3

15 According to the kinetic molecular theory, which statement describes the particles or an ideal gas? (1) The gas particles arc arranged in a regular pattern. (2) The force of attraction between the gas particles is strong.

Predict how many antacid tablets it would take to produce 120 mL of CO2 gas

how do u solve 5 1/4 * 4 * 2/3