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REY [17]
3 years ago
12

A chemist wants to combine sodium with a halogen. The halogen must have a higher atomic mass than sodium. Which of the following

elements is the BEST choice to combine with sodium?
A bromine

B sulfur

C fluorine

D arsenic
Chemistry
1 answer:
user100 [1]3 years ago
8 0

Answer:

bromine

Explanation:

i just know

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what is the pH of a solution prepared from solid, neutral 2-nitrophenol providing a fromal concentration of 0.0353M, given that
REY [17]

Answer:

pH = 4.34

Explanation:

pH= -1/2(logKa) -1/2(log C)

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3 years ago
How many moles of carbon in 6.64 moles of CCl2 F
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Answer: 6.64 moles of carbon.

Explanation:

Given data:

Number  of moles of C = ?

Number of moles of CCl₂F₂ = 6.64 mol

Solution:

In one mole of CCl₂F₂ there is one mole of carbon two moles of chlorine and two moles of fluorine are present.

In 6.6 moles of CCl₂F₂ :

Moles of carbon = 6.64 × 1 = 6.64 moles of carbon.

Moles of chlorine = 6.64× 2 = 13.28 moles of chlorine

Moles of fluorine = 6.64× 2 = 13.28 moles of fluorine

Read more on Brainly.com - brainly.com/question/15602143#readmore

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3 years ago
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Answer:

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vampirchik [111]

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The variables to be examined in relation to carbon dioxide use are the amount of light exposure and amount of dissolved CO2. Phenol red is yellow/orange under acidic conditions, that is when the pH of the solution is less than 7 (e.g. pH = 6). This occurs when the concentration of CO2 is high.

Explanation:

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