A 6.0 L sample of gas at 300 K cools down until its volume is 3.0 L. Assuming pressure is constant, what is the final temperature of the gas?

350 K
250 K
200 K
150 K

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.