To which classification do compounds belong?

A. heterogeneous mixtures

B. pure substances

C. homogeneous mixtures

If gas si supplied by a pipe which pass through a mesuarer to your house, Which case would you pay more for it? a) When it's cold b) When it's hot c) There's no diference

What are the streams of glowing gas that shoot out from the sun called? Corona Prominences Solar flares Sunspots

According to the hertzsprung russel diagram what is the luminosity of the sun

Which statement describes the formation of a covalent molecule? A) an atom of an element with atomic number 12 reacts with one oxygen atom B) an atom of an element with atomic number 8 reacts with two hydrogen atoms C) an atom of an element with

You look for shells when you visit the beach. However, if you're hiking in the mountains and you find shells by accident, you know that A) the mountain has a lake nearby. B) the mountain was once under the sea.

the half-life of carbon - 14 is 5730 years. What fraction of carbon-14 would remain after 11,460 years?

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2

A proton, starting from rest, accelerates through a potential difference of 1.0 kV and then moves into a magnetic field of 0.040 T at a right angle to the field. What is the radius of the proton's resulting orbit

Which of the following terms are needed to completely describe speed? Check all that apply. A. Units B. Direction C. Number D. Mass

Drivers are able to see objects ahead of them because light travels through windshields.