2 years ago

Your friend had an upset stomach caused by indigestion. His mother explained to him

Chemistry

1 answer:

ddd [48]2 years ago

4 0

Answer:

because it may cause burn that causes acid to build up which causes you to keep having an upset stomach

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The monomer of poly(vinyl chloride) has the formula C2H3Cl. If there are 1,565 repeat units in a single chain of the polymer, wh

monitta

Answer:

$\large \boxed{9.780 \times 10^{4}\text{ u}}$

Explanation:

The molecular mass of a monomer unit is:

C₂H₃Cl = 2×12.01 + 3×1.008 + 35.45 = 24.02 + 3.024 + 35.45 = 62.494 u

For 1565 units,

$\text{Molecular mass} = \text{1565 units} \times \dfrac{\text{62.494 u}}{\text{1 unit }} = \mathbf{9.780 \times 10^{4}}\textbf{ u}\\\\\text{The molecular mass of the chain is $\large \boxed{\mathbf{9.780 \times 10^{4}}\textbf{ u}}$}$

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2 years ago

How many atoms are in Sodium, Carbon, Hydrogen, Oxygen, Fluorine, Boron, Lithium, Helium, Phosphorus and Sulfur?

vlada-n [284]

Sodium. 11
Carbon. 12
Hydrogen 1
Oxygen 2
Fluuorine. 14
Boron. 5
Lithium. 6
Helium 3
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Sulfur 6

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3 years ago

Which planet in the solar system is least dense

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Answer:

Saturn

Explanation:

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Which element will react with cold water? (a) sodium (b)calcium (c)zinc (d)iron (e)copper (g)mercury

rjkz [21]

The answer is a) sodium!

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The evaporation of the ocean's surface water as part of the water cycle is a process caused by

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it is due to solar radiation.

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