What is the term used to describe the energy needed to get a reaction started?

a. adhesion energy

b. activation energy

c. cohesion energy

d. chemical energy

As an instructor is preparing for an experiment, he requires 225 g phosphoric acid. The only container readily available is a 150-mL Erlenmeyer flask. Is it large enough to contain the acid, the density of which is 1.83 g/mL?

The relationship between molecular velocities and temperature is a ___relationship. indirect direct inversely proportional secondary

How does a catalyst increase the rate of a chemical reaction?

How many electrons does carbon have? a. 3 b. 6 c. 12 d. 24

A rigid container holds a gas at a pressure of 55 kPa and a temperature of - 100.0*C. What will the pressure be when the temperature is increased to 200*C

What is the mass (in grams) of 9.09x10^24 molecules of methanol (CH3OH) ? AND How many moles of N are in 0.183g of N2O?

What are the basic building blocks of matter? A) molecules B) atoms C) electrons D) compounds

How does an atom with too few neutrons relative to protons undergo radioactive decay? * by converting proton to a neutron by converting a neutron to a proton by emitting an alpha particle

What is the chemical formula for the compound formed between sodium and iodine?

8. Write a balanced chemical equation showing how you could prepare each of the following salts from an acid-base reaction: KNO3, NaBr, and Cas.