RNA and DNA differ in which way A. RNA has no molecules. b. RNA is a single stranded. C. RNA forms a double helix. D. RNA is not soluble in water

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Using the periodic table, identify the lightest member of each of the following groups: (a) noble gases (b) alkaline earth metals (c) alkali metals (d) chalcogens

Name the following chemical compound Zn (No2) 2

Calculate the number of CO2 molecules in 0.0334 molmol of CO2. Express your answer using three significant figures.

How much of a radioactive parent isotope will remain after three half-lives have passed? a. one-eighth b. three-halves c. one-third d. one-sixth?

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