Earth's core is made mostly of

A. silicon and oxygen.

B. iron and nickel.

C. silicon and magnesium.

D. iron and magnesium.

Identify the solvent and the solute in vinegar a dilute aqueous solution of acetic acid

If a substance reacts with oxygen, the chemical reaction is most likely a combustion reaction. decomposition reaction. single replacement reaction. double replacement reaction.

When the Earth was formed which planets was its atmosphere similar to?

Which of the following measurements is equal to 2.3 dL? 23 L 2,300 cL 23,000 mL 230,000 µL

If the compound contains 35.06 % cl by mass, what is the identity of the metal?

A compound of material formed by a chemical is known as?

Which of these molecules experience london dispersion force?

What happens to the volume of most matter when it is heated?

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Which of the following measures the radiation given off by atoms per second?