1.

what statement describes the process of solar nuclear fusion?

hydrogen molecules are fused together and become oxygen molecules, giving off large amounts of energy.

helium molecules are fused together and become hydrogen molecules, giving off large amounts of energy.

hydrogen atoms are fused into deuterium, then helium-3, then helium-4, each step giving off large amounts of energy.

hydrogen atoms are fused into deuterium, then helium-4, then back into hydrogen, each step giving off large amounts of energy

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.

Describe the properties of sodium, chlorine, and sodium chloride

What are two radioactive isotopes that are used for dating rocks that are older than 10 million years