Which of the following compounds is composed of more than two atoms? PICK TWO ANSWERS

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

What is the molar mass of a gas that has density of 2.054 g/l

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of