Why are some metals reactive than others?

A certain rifle bullet has a mass of 9.81 g. Calculate the de Broglie wavelength of the bullet traveling at 1097 miles per hour.

What is a base? A. A substance that contributes chloride ions to the solution B. A substance that increases the concentration of oxygen in solution C. A substance that increases the concentration of OH ions in solution D O D.

The pH of a solution shows the concentration of what type of ion?

You gained two pounds while on vacation. Which of the following has changed? A Only your mass has changed B Only your weight has changed C Neither Your Mass nor your weight has changed D Both Your mass and your weight has changed

Who discovered electron?

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