Which of the following words correctly describes CO2? Select all that apply

A. Its a substance

b its a compound

c its a element

D its a mixture

The solubility of three compounds in water is shown in the table above. What best explains the observations shown in the table? A. Lead (II) fluoride is most soluble because the ions are held together by weak attractive forces. B.

What is the salt that is produced when calcium hydroxide (Ca (OH) 2) reacts with sulfuric acid (H2SO4) ?

What are the main risk and main benefit when a society uses energy from nuclear fission? a. risk of harm to flying animals; benefit of reducing greenhouse gases b.

What is the mass of one mole of S8?

Which of the following solids would be easiest to cut? ZnS Cu C6H12O6 LiBr

What prompted rutherford to do the alpha particle scattering experiment?

How many moles of hydrogen would be required to produce 5.0 mol of water?

What is the biggest difference between an exothermic and endothermic process? A. The direction of energy flow. B. The amount of energy transferred. C. The type of energy being transferred. D. The speed with which energy is transferred.

The mass of 1 mol of chromium (atomic mass 51.996 amu) is

Which of the following elements will tend to form a cation? A. Oxygen B. Nitrogen C. Sulfur D. Lead E. All of the Above