Is dirt heterogeneous or homogeneous

Calculate the ph of a 0.005 m solution of potassium oxide k2o

1) How many moles are in 25.0 grams of water? 2) How many grams are in 4.500 moles of Li2O? 3) How many molecules are in 23.0 moles of oxygen? 4) How many moles are in 3.4 x 1023 molecules of H2SO4? 5) How many molecules are in 25.

The exponents in the rate law of an elementary step are always equal to the coefficients of each species in the balanced reaction. a. True b. False

List three landforms formed by deposition

Calculate the approximate volume of a 1.50 mol sample gas at 15.0°C and a pressure at 3.75atm.

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