A compound differs from a mixture because it

Suppose this comet were to hit the earth at 40000 km/h and fuse with it. by how much would it change our planet's velocity? (the mass of the earth is 5.97*1024kg)

A classmate states that continental drift could not be possible because it would take far too much force to move tectonic plates. describe the hypotheses scientists use to explain the movement of tectonic plates.

How many types of electrical charges exist?

Nineteenth century English scientist Michael Faraday found that if he moved a magnet through a loop of wire, an electric current flowed in that wire. What process did Faraday discover? A. solenoid induction B. electromagnetic induction C.

If a star's radiation peaks in the ultraviolet region of the spectrum, what could you conclude? It will not be able to be seen It is a black hole It is a very intense star It is not a very intense star

Two sailboats leave a harbor in the bahamas at the same time. the first sails at 23 mph in a direction 330°. the second sails at 34 mph in a direction 190°.

What conclusion can be drawn from the statement that an element has high electron affinity, high electronegativity, and a high ionization energy? A) The element is most likely from Group 1A or 2A and in period 1 or 2.

When a cyclist rides past you on the street, this is an example of

Why are galaxies visible

I hockey puck slides across an ice rink more easily than it does across a rough concrete surface why is this