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irina1246 [14]
2 years ago
12

Story that ends with I suddenly wake up and realize that it was a dream​

Chemistry
1 answer:
scZoUnD [109]2 years ago
3 0
I rushed to the door to see what loud noise i heard, I seen a strange man standing on top of a body. As I screamed loudly, he started rushing towards me. ... He then began to slice my neck and I started to bleed out and collapsed on my front door. I suddenly woke up and realized it was all a dream, I went back to sleep.
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Milk of magnesia has the chemical formula Mg(OH)2. What is the mass of 3.2 moles of milk of magnesia? The molar Mass of magnesiu
GenaCL600 [577]
To calculate the mass of milk of magnesia given, we need certain data like molar mass of the compound which needs the atomic mass of the atoms in the compound. We calculate as follows:

Molar mass of <span>Mg(OH)2 = 24.3 g/mol + (2 x (16 + 1.0)) = 58.30 g/mol

Mass = 3.2 mol (</span>58.30 g/mol) = 186.56 grams
3 0
3 years ago
An atom x contains 14 protons, 13 electrons, and 12 neutrons, and atom y contains 14 protons, 14 electrons, and 12 neutrons. wha
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<span>a. x and y are atoms of the same element. 

If both atoms contain the same amount of protons, they are always the same element.
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3 years ago
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Doubling the amplitude of a wave means that you increase the ___ of a wave factor of _______
Nesterboy [21]
Doubling the amplitude of a wave means that you increase the energy of a wave factor of quadrupling
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3 years ago
What type of air masses might make up the cold air mass in a cold front
Elena L [17]

Answer:

continental polar air masses

Explanation:

forms over Canada, move down from North Pole, bring bitterly cold and dry air to the northern United States during the winter.

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18. Use the activity series to predict whether the following synthesis reaction will occur. Write the chemical equations for the
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<u>Answer:</u> The chemical reaction for the synthesis reaction is given below.

<u>Explanation:</u>

Synthesis reaction is defined as a chemical reaction in which two small chemical substances combine together to form a single compound. The general equation for this chemical reaction follows:

A+B\rightarrow AB

For the reaction of calcium and oxygen combining together to form calcium oxide, the equation follows:

2Ca(s)+O_2(g)\rightarrow 2CaO(s)

By Stoichiometry,

2 moles of calcium element combines together with 1 mole of oxygen gas to produce 2 moles of calcium oxide.

Hence, the chemical equation for the reaction is given above.

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3 years ago
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