How did oxygen come up to make 21% of the earth's present atmosphere?

An unknown solution has a pH of 2. How would you classify this solution? basic neutral There is not enough information to answer the question. acidic

The heat capacity of a sample should be divided by which quantity to find the specific heat capacity?

You measure water in two containers: a 10-ml graduated cylinder with marks at every ml, and a 1 - ml pipet marked at every 0.1 ml.

A saturated fatty acid has a. one double bond within the hydrocarbon chain b. two double bonds within the hydrocarbon chain c. no double bonds within the hydrocarbon chain d. none of the above are correct

Arrange each set in order of increasing atomic size: (a) Rb, K, Cs (b) C, O, Be (c) Cl, K, S (d) Mg, K, Ca

If a plane is traveling300 mph how long will it take to travel 1800 miles

How do you get friends

Determine the number of grams of NaCl necessary to make up 100 mL of a 0.10 M solution. 0.017 g 0.58 g 1.7 g 58 g

What causes an increase in the average global temperature?

Which of the following is true regarding nuclear fission and nuclear fusion? A. Both of these processes can provide energy. B. Our sun's heat is an example of both of these processes. C. Both of these processes are equally complex to control. D.