Scientific knowledge is based on A. observations and inferences. B. hypotheses and doubt. C. political and social views. D. bias and opinions.

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.