How many moles of N are in. 235g of N2O

How much water is needed to dilute 1 liter of 90% isopropyl alcohol to make a 70% alcohol solution? A. 2.86 mL B. 28.6 mL C. 286 mL D. 2860 mL

How many calcium (Ca) atoms are in the chemical formula: CaCO3 1 5 3 None

Which statement best describes a solution containing a strong base? A. the solution is dilute B. The solution is concentrated C. a small amount of the base dissociates in solution D nearly all of the base dissociates in solution

Particles of sand or dust rubbing across the surface of rocks is called: A. abrasion B. deflation C. calving D. plucking

Which formula represents a molecular compound

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