1. What is the the difference between reactants and products of a chemical equation.

2. What does the law of conservation of mass state?

The mass of Jupiter is 0.001 solar mass. The orbital period of Jupiter is 11.9 Earth years. What is the distance between Jupiter and the Sun? 5.2 AU 41 AU 52 AU 410 AU

An electric hair dryer is rated 350w 110v. the safety fuse in the circuit can withstand 12a of current. how many hair dryers can be safely operated in the circuit?

A 1423 kg car is traveling down the road at 105.0 km/h. while traveling at this rate of speed, what is the kinetic energy of this vehicle in kilojoules?

What is a theory that attempts to explain particles that are very small?

What two types of waves are used to determine the epicenter of earthquakes

If a fully loaded shopping cart has a head-on collision with an empty cart both moving at the same speed toward each other, which cart experiences the greater force? The greater impulse? The greater change in momentum? The greater acceleration?

Why didn't early Portuguese and Dutch explorers decide to create settlements in Australia

How do the electrons in the bulb's filament, far from the battery and its emf, "know" that they should flow?

What occurs when an unstable atomic nucleus changes into other nuclei by emitting particles and energy

Can a simple machine's efficiency ever be greater than 100%? Explain your answer.