Which statements best describe plantesimals

Which describes an object's speed in free fall? the object accelerates until it reaches its terminal velocity. the object falls at a constant speed because only one force acts on it. the object falls faster and faster until it strikes the ground.

What is the concentration of NO3 - ions in a solution prepared by dissolving 30 g of Ca (NO3) 2 in enough water to produce 300. mL of solution. a. 0.305 M b. 0.609 M c. 0.806 M d. None of these

In a chemical formula, the letters tell you the?

A gas at a constant temperature of 300. K, a pressure of 200. kPa, and a volume of 15.0L was decreased to a volume of 10.0 L. What is the new pressure of the gas?

Solid potassium hydroxide koh decomposes into gaseous water and solid potassium oxide. write a balanced chemical equation for this reaction.

Which statements describe the principles of the Big Bang theory

Is ice cream a mechanical mixture or solution why?

Which term is used to describe the attraction that an oxygen atom has for the electrons in a chemical bond?

Suppose you wanted to dissolve 109 g of sodium carbonate in enough water to make 6.00 L of solution. What is the molarity of this solution?

0.0055 in scientific notation