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Dimas [21]
3 years ago
10

Plzzzzzzzzzzzzzzzz help

Chemistry
2 answers:
DiKsa [7]3 years ago
6 0

Answer:

The answer is C.

Explanation:

I just know.

Anna [14]3 years ago
5 0

Answer:

Your correct.

Explanation:

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3.55. 10

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What’s the percent by mass of 3.55g NaCL in 91.55g of solution
NISA [10]

Answer:

3.88%

Explanation:

Given parameters:

Grams of solute = 3.55g of NaCl

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6 0
3 years ago
A line is perpendicular to<br> y = -3x – 9<br> What is the slope of this<br> perpendicular line?
Gwar [14]

Answer:

a. 1/3

In the picture- D. 4

Explanation:

The product of the gradients of perpendicular lines =-1

m1m2=-1

Given an equation of a line in the form y=mx+c, m is the gradient of the line.

For y= -3x-9, m=-3

m1m2=-1

-3×m2=-1

m2=1/3

The gradient of the perpendicular line is 1/3

For the question in the picture, y=-1/4x-9, m=-1/4

m1×m2=-1

-1/4m2=-1

m2=4

The slope of the line perpendicular to y=-1/4x-9 is 4

6 0
3 years ago
Read 2 more answers
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