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suter [353]
3 years ago
7

A solid is 5 cm tall 3 cm wide and 2 cm thick it has a mass of 129 g what is the density

Chemistry
2 answers:
belka [17]3 years ago
7 0
First you would multiply 5,3, and 2 to get a volume of 30. Density is mass over volume so you would then divide 129 by 30. You would get 4.3. The answer would be 4.3 g/cm^3
dlinn [17]3 years ago
4 0

<u>Answer:</u> The density of solid is 4.3g/cm^3

<u>Explanation:</u>

To calculate the volume of cuboid, we use the equation:

V=lbh

where,

V = volume of cuboid

l = length of cuboid = 5 cm

b = breadth of cuboid = 3 cm

h = height of cuboid = 2 cm

Putting values in above equation, we get:

V=5\times 3\times 2=30cm^3

To calculate density of a substance, we use the equation:

Density=\frac{Mass}{Volume}

Putting values in above equation, we get:

\text{Density of solid}=\frac{129g}{30cm^3}\\\\\text{Density of solid}=4.3g/cm^3

Hence, the density of solid is 4.3g/cm^3

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Answer:

(b)90mg/lb

Explanation:

The child can consume a maximum of 23 tablets with 80mg of acetaminophen, the total acetaminophen ingest is:

23*80=1840mg

This value is for 8 hours, 8 hours is 1/3 of one day. This means that the dose that can be consumed in 24 hours is 3 times 1840mg.

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To obtain the maximum allowable dose in mg per pound of body weight, divide this last value by the weight of the child in pounds.

Conversion of units: 28Kg(\frac{2.20lb}{1Kg} )=61.6lb

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6 0
3 years ago
As fuel is burned in an airplane, it seems to disappear from the tank, suggesting that matter is destroyed during the reaction.
gregori [183]

Answer:

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6 0
3 years ago
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Answer:

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Answer:

c

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Read 2 more answers
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