In every energy transformation some

Scientists take scientific measurements carefully in order to ensure their reliability and validity. What is the difference between accuracy and precision in scientific measurements

If the [H₃O⁺] of a solution is 1.7 x 10⁻³ M, what is the pH of the solution?

Why is carbon used to date things that were once alive

Calculate the volume of c2h2 that is collected over water at 23 ∘c by reaction of 1.53 g of cac2 if the total pressure of the gas is 755 torr. (the vapor pressure of water is 21.07 torr.)

A 0.100 M solution of chloroacetic acid 1ClCH2COOH2 is 11.0% ionized. Using this information, calculate 3ClCH2COO-4, 3H 4, 3ClCH2COOH4, and Ka for chloroacetic acid.

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