Why are gold rings not made from 100% gold?

Which correctly describes elements in the same group? select one: a. they have the same atomic radius. b. they have the same number of valence electrons. c. they have electrons in the same outermost energy level. d.

Which would conduct electricity well in solution: a strong electrolyte, a weak electrolyte, both types of electrolytes, or neither type of electrolyte?

If 25.4 grams of water react to form 2.8 grams of hydrogen, how many grams of oxygen must simultaneously be formed?

14) Oxygen-15 has a half-life of 2 minutes. How old is the substance after 5 half-lives?

Bryan and Alyssa are playing tug-of-war against Daniel and Maria. Bryan and Alyssa are exerting a combined force of 10 N. Daniel and Maria are exerting 12 N of force

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda