The scientific method is: a. a recent invention that helps scientists find out about density
b. a way of answering questions about our world
c. a method of choosing a topic of study
d. a method that answers all or our questions

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma

How many neutrons does an element have if its atomic number is 50 and its mass number is 166

Idont understand it 1.what is the boiling point of a solution of 675 grams of ethylene glycol (c2h6o2) in 2.50 liters of water?