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kicyunya [14]
3 years ago
14

A sample of sandstone consists of only silica (SiO2) and calcite (CaCO3). When sandstone is heated, calcium carbonate decomposes

to calcium oxide and carbon dioxide. Silica does not decompose. A 18.7 mg sample of the sandstone rock yields 3.95 mg of carbon dioxide.i) What is the mass of calcium carbonate in the sandstone rock in milligrams?ii) What is the percent of calcium carbonate in the sandstone rock?iii) What is the percentage of silica in sandstone rock?
Chemistry
1 answer:
anzhelika [568]3 years ago
5 0

Answer:

0

Explanation:

To calculate, the mass of Carbondioxide is 3.45mg

Then the decomposition of Carbondioxide gives 0 on calculation

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Which statement describes the blood type of a person with the alleles Ai?
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Answer:

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photoshop1234 [79]

Transverse waves have motion perpendicular to velocity, while longitudinal waves have motion parallel to velocity.

Explanation:

The correct option of all is that transverse waves have motion perpendicular to velocity while longitudinal waves have motion parallel to velocity.

A wave is a disturbance that transmits energy from one point to another. There several types of waves like sound, electromagnetic , ocean waves etc.

  • Waves can be classified as either longitudinal or transverse waves based on the direction through which they are propagated.
  • Longitudinal waves are waves propagated parallel to the source of velocity.
  • An example is sound waves and seismic p-waves.
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What happens to a magnetic field if the current carrying wire A has three times as many loops but the same current as the curren
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More the number of turns, more will be the magnetic field produced.

Hence wire A will have magnetic field greater than wire B.

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An extra-strength aspirin contains 0.500 g of aspirin. how many grains is this? (1grain=64.8mg)
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By unit conversion, the aspirin contains 7.72 grains.

We need to know about unit conversion to solve this problem. The unit conversion can be used to convert a unit to another unit. It can be defined as

a = xb

where a is unit a, b is unit b and x is the constant of conversion.

From the question above, we know that

m = 0.5 gram

unit conversion

(1 grain = 64.8 mg)

Convert the unit conversion to 1 mg

1 grain = 64.8 mg

1/64.8 grain = 64.8/64.8 mg

1 mg = 1/64.8 grain

Convert the aspirin mass to grain

m = 0.500 g

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m = 7.72 grain

Find more on unit conversion at: brainly.com/question/4158962

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