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ludmilkaskok [199]
3 years ago
14

Help me please, will give brainly

Chemistry
2 answers:
geniusboy [140]3 years ago
6 0

I don’t know sorry :(
GrogVix [38]3 years ago
5 0
Sedimentary-May contain fossils
All-Can be changed into different rocks
Metamorphic- requires pressure and heat
Sedimentary -Requires Erosion
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Volume is the independent or dependent variable
m_a_m_a [10]

Answer:

Independent

Explanation:

Independent Variable is the volume of the object. Dependent Variable is the mass of the object. So it

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2 years ago
Sodium bromate chemical formula
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NaBrO3 is the chemical formula for Sodium Bromate.
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3 years ago
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In the bromination of arenes, which of the following statements regarding the reaction is true?a.The hydrocarbon is used in exce
Olenka [21]

The hydrocarbon is used in excess.

<h3><u>Explanation</u>:</h3>

The bromination of an arene is not simple as bromination of an alkane. This is because the carbocation or free radicle formation in benzene is a very energy consuming process. This is why a lewis base like aluminium bromide or ferric bromide is used. The ferric bromide takes in the bromine radicle and forms the brominium cation which helps in the formation of electrophile. Now this electrophile brominium cation attacks the benzene ring and forms a temporary sp3 hybrid carbon intermediate. Then the hydrogen is taken by the FeBr4- forming HBr and regenerating the FeBr3 as well as Aromaticity of the arene species at the same time. Here hydrocarbon is used in excess just to prevent the chances of multiple substitution in the same arene molecule.

8 0
3 years ago
What is another way to measure the average kinetic energy of a substance?
GuDViN [60]

Answer:

Using temperature or a thermometer

Explanation:

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2 years ago
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Which measurement has the greatest number of significant figures?
soldi70 [24.7K]

Answer:

Option B = 60,600 mg  (correct option)

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First of all we will have an idea which numbers are consider as significant.

1 = All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

2= Leading zeros are not consider as a significant figures. e.g. 0.02 in this number only one significant figure present which is 2.

3= Zero between the non zero digits are consider significant like 105 consist of three significant figures.

4= The zeros at the right side e.g 3400 are also significant. There are four significant figures are present.

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Option B have 5 significant figures.

Option C have 4 significant figures.

Option D have 3 significant figures.

Thus option b is correct option which have more significant figures.

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3 years ago
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