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Alchen [17]
4 years ago
12

Explain the scientific word meaning of random

Chemistry
1 answer:
astraxan [27]4 years ago
5 0
Odd, unusual, or unexpected.
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What is the mass in grams of 1.50 X 1023 molecules of NaOH?
avanturin [10]

Answer:

a. 10.0 g

Explanation:

The molar mass of NaOH is 39.997 grams which was calculated by adding the molar mass of Sodium, Oxygen, and Hydrogen 22.990 + 15.999 + 1.008 = 39.997. But before we do anything with this number we must first convert 1.50 * 10^{23} molecules to moles. We can do this by dividing by Avogadro's number or 6.022*10^{23}  ( \frac{1.50*10^{23}}{6.022*10^{23}} = 0.24909 moles). We then convert moles to grams by multiplying by the molar mass of NaOH, (0.24909 * 39.997 = 9.96 grams). This is almost exactly 10 and the margin of error is likely due to the original numbers not being precise enough.

5 0
4 years ago
What is a synthesis reaction? a reaction that occurs when two or more reactants combine into one product
dmitriy555 [2]

Answer:

A synthesis reaction is <em>a reaction that occurs when two or more reactants combine into one product.</em>

Explanation:

A reaction that occurs when two or more reactants combine into one product is called a synthesis reaction.

A reaction that occurs when one element within a compound is exchanged with another element is called a single replacement reaction.

A reaction that occurs when a substance combines with molecular oxygen, releasing light and energy is called combustion.

A reaction that occurs when a single substance breaks apart and forms two or more new substances is called decomposition.

7 0
3 years ago
What is the correct chemical formula for Fe2(CO3)3?
OLga [1]
C. Iron(III) carbonate
7 0
3 years ago
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Which element in group 1 has the greatest tendency to lose an electron?
77julia77 [94]
A. cesium. bacause as the elements go down a group of the atoms, the sizes of the atom will increase . we know that tge tendency to lose an electron is based on the sizes of the atoms of group 1.
7 0
3 years ago
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What is the volume of 12.8 g of a liquid that has a density of 0.789 g/mL?
shusha [124]
  <span> .789=12.8*x
.789/12.8=x
.0616=x
.0616ml </span>
4 0
3 years ago
Read 2 more answers
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