How are igneous rocks formed?

A. Heat and pressure from nearby magma changes existing rock.

B. Lava or magma cools and then crystallizes.

C. Sediments deposit in a lake and turn to stone.

D. Lava or magma heats up and crystallizes.

A 3.6-mL volume of seawater contains about 4.0 * 10-10 g of gold. The total volume of ocean water is about 1.5 * 1021 L. Calculate the total worth of all the gold in the world's oceans if the price of gold is $21.84 per gram.

What is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s?

Which is a characteristic of a solution1. its particles scatter light2. ita particles are evenly distributed 3. its particles settle out 4. it has large suspended particles

What do I need to convert mass of product to ma's of a reactant

What forms as a result of the erosional processes of weathering? Select all that apply. Soil Lava Sediment Sand

What is the relationship between chemical equilibrium and the rates of forward and reverse reaction

What is the valence of Fluorine

When liquid helium is exposed to room temperature, it forms a gas. Which best explains why this happens? The liquid helium absorbs energy from the air in the room. The particles in the air absorb the energy of the liquid helium.

Why was Bohr's model considered more accurate than Dalton's model?

Select the statements that correctly describe a buffer. 1) The pH of a buffer solution does not change significantly when any amount of a strong acid is added. 2) A buffer is generally made up of a weak acid and its conjugate base.