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Snezhnost [94]
3 years ago
11

The reaction where heat is added is called? removed?

Chemistry
1 answer:
Harrizon [31]3 years ago
4 0
Endothermic<span> Reaction??? </span>
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renata developed a hair dye additive that is guaranteed to cover grey hair. she granted the right to use this additive to a majo
kvasek [131]

What Renata has granted to the manufacturer of the colored hair dye is called a patent.

<h3>What is a patent?</h3>

A patent is a right given to a manufacturer to be the sole producer of a product for a given period of time. Usually, the patent has to last for a given number of years after which the technology becomes commonplace.

Hence, what Renata has granted to the manufacturer of the colored hair dye is called a patent.

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4 0
2 years ago
After substantial heating, 6.25 g of iron produced 18.00 g of a compound with chlorine. The empirical formula is:
babunello [35]

Answer:

Option A. FeCl3

Explanation:

The following data were obtained from the question:

Mass of iron (Fe) = 6.25g

Mass of the compound formed = 18g

From the question, we were told that the compound formed contains chlorine. Therefore the mass of chlorine is obtained as follow

Mass of chlorine (Cl) = Mass of compound formed – Mass of iron.

Mass of chlorine (Cl) = 18 – 6.25

Mass of chlorine (Cl) = 11.75g

The compound therefore contains:

Iron (Fe) = 6.25g

Chlorine (Cl) = 11.75g

The empirical formula for the compound can be obtained by doing the following:

Step 1:

Divide by their molar mass

Fe = 6.25/56 = 0.112

Cl = 11.75/35.5 = 0.331

Step 2:

Divide by the smallest

Fe = 0.112/0.112 = 1

Cl = 0.331/0.112 = 3

The empirical formula for the compound is FeCl3

3 0
3 years ago
________ exercise strengthens skeletal muscle, and ________ exercise strengthens skeletal and cardiac muscle.
valentinak56 [21]

Answer:

<h3>... :-!...................nose...........</h3>
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4) list 3 protest rights you have that are protected under the law. How can you protect these rights? George Floyd’s ?
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Peaceful Protest, Signing Pettitons, contacting mayors/governors and writing emails/sending letters
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Explain the concept: Law of Multiple Proportions.<br> Short and simple please
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In chemistry the law of multiple proportions states that if two elements from more than one compound between them then the ratios of the masses of the second element which combine with a fixed mass of the first element will always be ratios of small whole numbers .
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3 years ago
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