Is air a gas or vapor

JJ Thomson's cathode-ray tube experiment showed which of the following? A. Matter can be neither created nor destroyed B. Atoms are small individual spheres C. Electrons are in a cloud surrounding positively charged particles D.

Which statement is true about the Earth's path around the sun? A It is triangular. B It is elliptical. C It is random. D It is circular.

For group 2a metals which electron is the most difficult to remove

Consider a situation in which the enzyme is operating at optimum temperature and pH, and has been saturated with substrate. What is your best option for increasing the rate of the reaction?

What's the balanced equation of sodium hydroxide + carbon dioxide produces sodium carbonate + water?

How many cases of measles would you predict were reported last year

what happens when baking soda is mixed with vinegar a a new substance is formed B the substances are the same c but the baking soda stays the same but the vinegar changes form D the mixture turns from a liquid into a solid

Which celestial object is found in kuiper belt

When K - and I - combine

Why is CF4 a non polar molecule, even though it contains polar bonds?