How long does it take (in minutes) for light to reach Mercury from the Sun, a distance of 6.26 * 107 km?

How many karats equal one ounce gold?

Gasoline (which can be considered to be octane, C8H18) burns in oxygen to produce carbon dioxide and water. What volume (L) of oxygen at STP is necessary to react with 1.0 gal of gasoline? (The density of gasoline is 0.81 g/mL. 1 gal = 3.78 L)

Which compounds are electrolytes? (1) C2H5OH and H2SO4 (2) C2H5OH and CH4 (3) KOH and H2SO4 (4) KOH and CH4

Why is it important that there is only a small amount of water in the beaker

0005x0.002 into scientific notation

Which of he following is not a part of the peer review process or its result? A. Allowing scientists to share ideas through published work B. Making sure that a piece of work is correct and includes bias C.

An ion has a charge of 2 - and 18 electrons. A) From which atom does this ion form? B) How do you know?

What diseases are spread in warm temperatures?

In 1993 the Minnesota Department of Health set a health risk limit for chloroform in groundwater of 60.0 g/L Suppose an analytical chemist receives a sample of groundwater with a measured volume of 79.0 mL.

A good way for someone to identify similar substances is to measure their densities true or false