Why is water important to humans?

The electron-pair geometry of a molecule is tetrahedral. what is its bond angle if there are no lone pairs of electrons?

Why cant atoms of one element convert to another element?

A flask has a mass of 78.23g when empty and 593.63g when filled with water. When the same flask is filled with concentrateds ulfuric acid, H2SO4, its mass is 1026.57g.

How are atomic number, atomic mass and the number of protons in an element's atom related?

You use an analytical balance to measure the mass of a weigh boat and record a mass of 1.5624 g. You then add some NaHCO3 to the weigh boat and give the weigh boat to your lab partner to measure.

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