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fiasKO [112]
3 years ago
5

What happens to the total amount of matter and energy during a chemical reaction ?

Chemistry
1 answer:
larisa86 [58]3 years ago
7 0
It would be conserved
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The carbon atoms in saturated hydrocarbons ________. Group of answer choices contain a benzene ring contain at least one double
Aliun [14]

Answer:

Have only single bonds.

Explanation:

Hello,

In this case, we need to remember that saturation is a state at which a carbon chain contains no insaturations, that is neither double nor triple bonds such case are alkenes and alkynes, but saturations only which are characterized by the presence of single bonds between adjacent carbon atoms. Such is the case of ethane (CH₃-CH₃), propane (CH₃-CH₂-CH₃), butane (CH₃-CH₂-CH₂-CH₃) and so on.

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3 years ago
Why do different elements make different color flames when you burn them?
Dovator [93]
When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy. ... The different mix of energy differences for each atom produces different colours. Each metal gives a characteristic flame emission spectrum.
7 0
3 years ago
Why bromine is a ring deactivator as it is ortho-Para directing group??
Anettt [7]

Answer:

here you go

Explanation:

Halogens are very electronegative. This means that inductively they are electron withdrawing. However, because of their ability to donate a lone pair of electrons in resonance forms, they are activators and ortho/para directing. Electron withdrawing groups are meta directors and they are deactivators.

7 0
3 years ago
** worth 20 points plus brainliest to whoever answer it correctly **
malfutka [58]

<u>Answer:</u> The correct answer is Option A.

<u>Explanation:</u>

To calculate the number of moles of a substance, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

We are given:

Given mass of fluorine = 6 grams

Now, to know the moles, we divide the given mass of fluorine by the atomic mass/molar mass of fluorine.

Thus, the correct answer is Option A.

5 0
3 years ago
When an Alka-Seltzer® tablet is put in water, there is a chemical change because there are bubbles produced. The Alka-Seltzer® t
Soloha48 [4]

Answer:

Heyy

Explanation:

3 0
2 years ago
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