What is the Lewis structure of CH4

A solution of a base differs from a solution of an acid in that the solution of a base? A. is able to conduct electricity B. is able to cause an indicator color change C. has a great [H3O+] D. has a great [OH-]

Living organisms make their own carbon

What can you determine about an element if you only know its group number on the periodic table? A. The number of valance electrons B. The total number of protons and neutrons C. The number of protons ОО D. The total number of electrons

What's the atmosphere of Jupiter

16. A sample of nitrogen gas, N2, is collected in a 100 ml container at a pressure of 688 mm Hg and a temperature of 565 °C. How many grams of nitrogen gas are present in this sample?

Identify the medium for the following waves: • The Wave Exercise waves: • Ripples on a pond: • Sound waves from a stereo speaker: • Seismic (earthquake) waves:

What is most believed by most scientists about the age of our solar system.

Just as heat can denature enzymes, so can a change in the pH. Enzymes that normally work in an acidic environment in the body can become denatured if the pH becomes too alkaline.

In a reversible reaction, both the forward and reverse reactions take place A. at the same rate. B. at two different rates. C. at varying, unequal rates. D. under different experimental conditions.

Choose the element that would be the most reactive of the three.