Answer:
mass
Explanation:
the chemical formula for water is H20 which means every molecule of water has 2 atoms of hydrogen and one atom of oxygen. Here comes the key part. from the periodic table of elements one sees that one mole of hydrogen atoms weight 1 gram while one mole of oxygen weights 16 grams.
NUCLEAR ENERGY
Every second of every day our Sun converts about 4.2 million metric tons (4,200,000,000 kilograms) of hydrogen into helium using a nuclear <span>fusion </span>process. During this nuclear reaction, a small portion of matter is converted to an enormous amount of energy. It is this output that provides the energy for photosynthesis and for heating our atmosphere and oceans.
In this lesson, you will learn the details of the nuclear fusion process. You will also learn about another important nuclear reaction called fission and some useful applications of it.
OBJECTIVES<span>Describe the process of nuclear fusion.Describe the process of nuclear fission.Identify some applications for nuclear reactions.List positive and negative factors associated with nuclear reactions.</span><span>VOCABULARY</span>
Coronary heart disease (CHD) occurs if plaque<span> builds up in the coronary (heart) </span>arteries<span>. ... </span>Smoking<span> is a major </span>risk <span>factor for heart disease. When combined with other </span>risk <span>factors—such as unhealthy blood cholesterol levels, </span>high blood pressure, and overweight or obesity—smoking<span> further raises the </span>risk<span> of heart disease.
Hope this helps you! =)</span>
Algae are limited to restricted environmental and climactic zones. FALSE. Algae grow everywhere. The type of algae that grow is very specific to that location, depends on the climate and the temperature.