Breathable oxygen is an examlpe of what

A chemist pumps hydrogen gas (h2) from a tank into a reaction vessel containing 0.734 mol o2. the gases react to form water. if all of the available o2 reacts, how many moles of h2 are used?

How many Cl atoms are present in 2.16 moles of NC13?

Describe how temperature influences chemical change.

What type of star has an absolute brightness of 1 and a surface temperature around 7,500 °C?

What color is phenolphthalein in acidic conditions and what color is it in basic conditions?

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