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konstantin123 [22]
2 years ago
9

Draw this image below. It shows one ton of feathers and one ton of bricks a. Compare the mass of the two substances:

Chemistry
1 answer:
bogdanovich [222]2 years ago
8 0

I don't understand the question

Can you elaborate further

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Answer:

Explanation:

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Which of the following is the correct chemical formula for cs and br? csbr cs2br csbr2
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A hydrate is compound that included water molecules within its crystal structure. During an experiment to determine the percent
stellarik [79]

Answer:

The percent by mass of water in this crystal is:

  • <u>21.4%</u>

Explanation:

This exercise can be easily solved using a simple rule of three where the initial weight of the hydrated crystal (6,235 g) is taken into account as 100% of the mass, and the percentage to which the mass of 4.90 g corresponds (after getting warm). First, the values and unknown variable are established:

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And the value of the variable X is found:

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The calculated value is not yet the percentage of the water, since the water after heating the glass has evaporated, therefore, the remaining percentage must be taken, which can be calculated by subtraction:

  • Water percentage = Total percentage - Percentage after heating.
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3 years ago
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balance the following equation by oxidation number method KMnO4 + Na2So3 gives Mno2 + Na2 So4 + Koh​
belka [17]

Answer:

good i think

Explanation:

yes correct

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