Why is water necessary for living organisms?

All organisms need water to stay clean.

All organisms need water as an energy source.

All organisms need water to transport chemicals into their cells.

All organisms live in the water.

What type of matter is gravel

Cunoscându-se că la 25C presiunea oxigenului dintr-un recipient este de 4 atmosfere, să se afle la ce temperatură oxigenul din recipient va avea presiunea de 8 atmosfere

3Mg + N2--> Mg3N2 True or False: Another possible product for this reaction could be MgN2

Vad är en fällningsreaktion?

Suppose you are given the following list of ingredients: 1 dozen eggs 24 teaspoons of vanilla 1 lb. (82 tsp) of salt 1 lb (84 tsp) of baking soda 3 cups of chocolate chips 5 lb (11 cups) of sugar 2 lb (4 cups) of brown sugar 1 lb (4 sticks) of

Model describe how you would show j. j. thomson's model of the atom using small beads and clay

Switching one substance for another is called ... ? a) displacement b) synthesis c) decomposition d) oxidation

C2h4 + O2 - CO2 + H2O If we start with 20 grams of CH4, how many moles of CO2 will form?

How does chemical energy relate to the atom and how can we use it?

A positively charged atom is known as a cation. A cation will? ... A) have more protons B) have to same number of protons and electrons. C) Be the same as a neutral atom. D) have more electrons.