Fossil fuels are also known as__

This is a crossword btw

Do matter take up space?

how closely related are the florida panther and the bengal tiger? could these two organisms mate and have offspring that would also be able to reproduce?

What kind of wave can humans see

How many milliliters of hydrogen gas are produced by the reaction 0.020 mol of magnesium with excess of hydrochloric acid at STP?

How many grams of lithium are needed to produce 45.0g of lithium nitride?

A chemical reaction produces CO2 (g). If 44 g is produced at 1.0 atm and 25°C, what volume will the gas occupy? (Assume that CO2 behaves as an ideal gas under these conditions.

What is the smallest carbohydrate called?

One of the characteristics of living things is that they respond to external changes in their environment so that their internal environment stays as stable as possible. why must an organism do this

A 21.0 kg child is running at a velocity of 2.50 m/s. The child is carrying a 2.25 kg gallon of milk. What is the momentum of the child and the milk together?

What's the mass number of this carbon atom?