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Phantasy [73]
3 years ago
5

Sand is a compound consisting atoms of

Chemistry
1 answer:
Maru [420]3 years ago
3 0

Answer:

b) Silicon and oxygen

Explanation:

A compound is a pure substance that contains two or more atoms chemically joined together. Sand is regarded as a 'compound' because it is made up of two or more atoms that are chemically bonded to one another.

Sand is said to predominantly contain silica, which has a chemical formula of SiO2. Hence, sand can be said to be a compound containing one atom of silicon (Si) and two atoms of oxygen (O2).

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Magnesium hydroxide, the active ingredient in milk of magnesia, neutralizes stomach acid, primarily hcl, according to the reacti
Tema [17]
For every 1 molecule of Magnesium hydroxide or Mg(OH)2 there will be 2 molecules of HCl neutralized.
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Then, the amount of HCl molecule neutralized would be: 2* </span>0.0943mol= 0.18861 mol

If molar mass of HCl is 36.46094 g/mol, the mass of the molecule would be: 0.18861 mol* 36.46094g/mol = 6.88grams
5 0
3 years ago
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vlabodo [156]

Answer:

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3 years ago
What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)?
Travka [436]
That would be A.

2.5*2*10^(10-7)=5*10^3
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How does hydrogen bonding affect the physical properties of substances?
alekssr [168]
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Hydrogen bonds affect solubility in water, molecules with hydrogen bonds dissolve better in water.
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A substance that has a uniform composition and is able to be separated by physical means
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