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astra-53 [7]
3 years ago
5

Hi I really need help

Chemistry
2 answers:
Nata [24]3 years ago
6 0
The first one is the answer
Anettt [7]3 years ago
4 0

Answer:

A

Explanation:

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Neko [114]

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the correct answer is Cheap and readily available

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4 years ago
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The products of a reaction are NaCl and H2O. What does the law of conservation of matter reveal about the reactants in the react
allochka39001 [22]

Answer:

D

Explanation:

total mass should be equal on both sides

it's a double do displacement reaction

HCl + NaOH --> NaCl + H2O

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4 years ago
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n200080 [17]

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I think the answer to the question is c

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6. If 4 grams of salt is dissolved in 79 grams of water, what is the total mass of the final solution? [1 mark]
nordsb [41]

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Explanation:

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3 years ago
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Question 4<br> How many carbon-carbon triple bonds are present in a molecule of 4,5-diethyloctane?
ivann1987 [24]

Answer:

We will have zero bonds

Explanation:

In this case, we have to start with the <u>structure of 4,5-diethyloctane</u>. This name ends with the <u>suffix "ane"</u> therefore we have an <u>alkane</u>. All the alkanes are made with <u>single bonds</u> between carbons and <u>single bonds</u> between carbon and hydrogen.

The molecule will have a <u>carbon chain of eight carbons</u> and we will have 2 <u>branches</u>, one ethyl on carbon 4 and another ethyl on carbon 5. (see figure 1)

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3 years ago
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