The law of conservation of mass applies to all chemical reactions.

A yellow ball with a mass of 2 kg is rolling across the floor at 3 m's A red ball with a mass of 3 kg is rolling across the same floor at 3 m's Which ball has greater kinetic energy, and why?

Silicon is the principal component of glass and has properties of both metals and non-metals. this makes silicon A) Metal B) Non-metal C) Metalloid D) Noble Gas

What is the energy of a single photon of ultraviolet light with a wavelength of 30.0 nm? 1 nm=10^-9 m

Most marble is composed primarily of

What is the average speed and the average velocity of a car that is one complete don't know if the distance traveled was 120 m and it took five seconds to do the complete donut?

When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. Which law of motion is being described in this scenario?

When attempting to solve a difficult problem, the best scientific approach would be to a. bring together a team of scientists with different backgrounds and perspectives to work together to find a solution to the problem. b.

When viewing a piece of art that is behind glass, one often is affected by the light that is reflected off the front of the glass (called glare), which can make it difficult to see the art clearly.

force used to lift a 25kg mass to a height of 24m in 5 sec does 2120J of work. Calculate the power.

Which statement is true about the atom? A: it contains positive electrons, uncharged protons and negative protons. B: it contains uncharged neutrons, positive electrons and negative protons.