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expeople1 [14]
2 years ago
11

Identify the elements and the number of atoms for each element in the following chemical formulas:

Biology
1 answer:
kvv77 [185]2 years ago
4 0
1. Note the amounts of atoms of all the component in HNO3, which are 1 atom of Hydrogen, 1 atom of Nitrogen and 3 atoms of Oxygen. Multiply each of the atomic weights by the amount of atoms of each element contained in the compound. Add up the results to obtain the molar mass: 1 + 14 + (16 x 3) = 63 gr/mole.
2. In one molecule of sodium sulfate, or Na2 SO4, there are seven atoms in all.
3. Magnesium dichloride is a magnesium salt comprising of two chlorine atoms bound to a magnesium atom. It is a magnesium salt, an inorganic chloride and a magnesium halide.
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4 years ago
Ocean currents that move toward the poles are _____.
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3 years ago
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What problem is faced by organisms that live in fresh water?
muminat

Answer:

A. Their bodies tend to take in too much water.

Explanation:

Osmoregulation is the maintenance of osmotic concentration inside the body cells and in the extracellular fluid by controlling the amount of water and salts.  Organisms living in water can be divided into two groups: Some are osmoconformers which change the osmolarity of body fluids with respect to the surrounding medium. Some are osmoregulators which do not allow change in internal osmolarity and try to maintain it by various means.

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3 years ago
The energy related to the motion of an object is called ___.
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The answer is  kinetic energy

Explanation:

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