Anhydrous magnesium nitrate will decompose when heated giving a white solid and a mixture of two gases X and Y

What causes interstellar dust and clouds of gas to condense into planets and stars?

Suppose the liquid water in ice cream did not have solutes dissolved in it. What effect do you think this would have on ice cream? (hint: Consider the temperature at which ice cream is kept.)

Atoms in 1 mol of carbon dioxide

How does the force of gravity on Jupiter compare to the force of gravity on Earth?

Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm2. Now suppose you are asked to enter the answer to two significant figures.

Which of the following is a physical change of matter? A) Roasting marshmallows B) mixing kool-aid and water C) mixing alka seltzer and water D) baking a cake

Calculate [OH-] for each solution. 1. pH = 13.48 Express your answer using two significant figures. 2. pH = 8.19 Express your answer using two significant figures. 3. pH = 2.12 Express your answer using two significant figures.

State whether the following statements are true or false (with justification). (a) 1 mol of N2 has more molecules than 1 mol of Ar. (b) 1 mol of N2 has more mass than than 1 mol of Ar. (c) The molar mass of N2 is greater than the molar mass of Ar

One year ago, you sold a put option on 100,000 euros with an expiration date of 1 year. you received a premium on the put option of $0.04 per unit. the exercise price was $1.22. assume that 1 year ago the spot rate of the euro was $1.

Calculate the product of 0.0002115m and 0.0000405m. Express the answer in scientific notation