What is the source of energy for the Sun?

1 Choice 1

hydrogen fusion

2 Choice 2

internal combustion

3 Choice 3

nuclear fission of metals

4 Choice 4

burning of solar gases

Explain how iodine can be obtained from iodine-sodium chloride mixture

1 times 2900 inches for a car

What does a metal's position in an activity series indicate about the chemical properties of that particular metal?

What will the concentration of PCl5 be when equilibrium is reestablished after addition of 1.31 g Cl2? PCl5 (g) ⇆ PCl3 (g) + Cl2 (g) Original Equilibrium Mixture: 3.42 g PCl5 4.86 g PCl3 3.59 g Cl2 in a 1.00-L flask.

How many grams of koh are needed to prepare 400 ml of 0.350 m koh solution?

Describe your observations of the original solutions. Describe your observations when the silver nitrate was added to the sodium chloride solution.

A gas occupies 18.5L at stp. what volume will it occupy at 735 torr and 57°c?

When two elements form two different compounds, the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers.

Which best identifies why the rusting of an iron nail in the presence of water and oxygen is in oxidation-reduction reaction

In the laboratory hydrogen gas is usually made by the following reaction:Zn (s) + 2HCl (aq) = H2 (g) + ZnCl2 (aq) How many liters of H2 gas, collected over water at an atmospheric pressure of 752 mmHg and a temperture of 21 Co, can made from 3.