Use the multiplication law of exponents to solve the expression below. 9^1/2 * 9^1/2

What holds a covalent compound together? Is it an electrostatic attraction?

Which sentences describe describe disadvantages of burning fossil fuel? (More than one can be selected) A. burning fossil fuels contributes to climate change B. Burning fossil fuels takes place inside expensive fuels cells. C.

Oxygen's atomic number is 8. This means that an oxygen atom has a. eight neutrons in its nucleus. c. eight protons in its nucleus. b. a total of eight protons and neutrons. d. a total of eight neutrons and electrons.

Synthesize What environmental effects are shared by all fossil fuels?

Consider the following metals: Ag, Au, Mg, Ni, and Zn. Which of these metals could be used as a sacrificial anode in the cathodic protection of an underground steel storage tank? Steel is mostly iron, so use - 0.

Describe a way that people might be able to solve each envioronmental problem listed below. coal mining can harm habitats and cause pollution.

A sample of methane gas occupies 4.50 gallons at a temperature of 80.0 F. If the pressure is held constant, what will be the volume of the gas at 100. degrees C?

Jack wants to know if it takes longer for warm water to freeze into ice cubes than cold water, so he performed the following experiment. Jack placed 50 mL of water in the refrigerator and allowed it to cool to a temperature of 4°C.

How to calculate average concentration

Suppose that you measure a pen to be 10.5 cm long. Convert this to meters.