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pickupchik [31]
3 years ago
10

Choose all correct statements.

Chemistry
2 answers:
antoniya [11.8K]3 years ago
6 0
Correct answer is A
DerKrebs [107]3 years ago
5 0
Number 1 is correct
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A distinct molecular species that is formed in one step of a reaction mechanism and then reacts in a subsequent step is called
Flura [38]

Notice that the oxygen atom produced in the first step of this mechanism is consumed in the second step and therefore does not appear as a product in the overall reaction. Species that are produced in one step and consumed in a subsequent step are called intermediates.

I hope that helps

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4 years ago
Sticky question: how do you separate molecules that are attracted to one another?.
lions [1.4K]

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Chromatography uses chromatography paper which is filter paper that is made of cellulose, a polymer. Cellulose is polar, therefore it attracts water molecules, as well as other polar substances. As the solvent reacts with the paper, it competes for the attraction of the molecules being separated.

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3 0
3 years ago
A concentrated stock solution has molarity of 5 M. Calculate the volume (in mL) of the stock solution
Aleks [24]

Answer:

Explanation:

You have to calculate cuz you can`t count that much and he volume is 999.0031.

4 0
3 years ago
Question 3 of 10
KATRIN_1 [288]

Answer:A

Explanation:

5 0
3 years ago
a metal worker uses a cutting torch that operates by reacting acetylene gas, C2H2(g), with oxygen gas, O2(g), as shown in the un
harkovskaia [24]

Answer:

650 grams

Explanation:

Given that acetylene gas reacts with oxygen to produce caobon dioxide, water and heat and the unbalnced equation is

C_2H_2(g)+O_2(g) \rightarrow CO_2(g) + H_2O(g)+ heat

Gram-formula mass of C_2H_2= 26 g/mol

So, mass of 1 mole of acelylene is 26 grams

Therefore, mass of 25 moles of acelylene=25x26=650 grams

Hence, the mass of 25 moles of acelylene is 650 grams

8 0
3 years ago
Read 2 more answers
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