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Anna35 [415]
3 years ago
5

1. Which of these is NOT found in the nucleus of an atom?

Chemistry
2 answers:
grandymaker [24]3 years ago
7 0

Answer:

Electrons

Explanation:

nydimaria [60]3 years ago
5 0

Answer:

Electrons are not found in the nucleus for they are orbiting the atom.

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Which of the following is the correct formula to calculate percent by mass? [Mass of solution (g) + mass of solute (g)] × 100 [M
cricket20 [7]

Answer:

Percent by mass is calculated by tihis formula, Mass of solute (g) ÷ mass of solution (g)] × 100.

Explanation:

For example: if you have a solution 45% m/m (mass percentege), you have 45 g of solute in 100 g of solution.

7 0
3 years ago
Read 2 more answers
How many mm Hg are there in 2.27 atm?
vekshin1

Answer:

\huge\boxed{\sf 2.27\ atm = 1,725\ mm\ of\ Hg}

Explanation:

We know that:

1 atm = 760 mm of Hg (Standardly)

Multiply both sides by 2.27

2.27 atm = 760 * 2.27 mm of Hg

2.27 atm = 1,725 mm of Hg

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
3 0
3 years ago
Pleaseeee help me
scoundrel [369]

Answer:

2Al (s) + 3CuCl2( aq) --> 2AlCl3 (aq) + 3Cu(s)

Explanation:

The main thing for this equation is to follow the amount on each side. Count each element on each side. Then by looking at the numbers figure out what numerical digit would make them equal.

For example:

On the left we have

Cu=1 and Cl=2.

But on the right we have

Cu=1 and Cl=3.

In order for them to be the same, we must add a coefficient of 3 to CuCl2 (aq0  on the left and a coefficient of 3 to Cu(s) on the right.

6 0
3 years ago
In some places there are deep cracks in earths crust called
Leona [35]
I think they are called Faults.
7 0
3 years ago
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How is pascals law used in the brakes of a car? <br><br> I’m giving 67 points!
bogdanovich [222]

Answer:

A change in pressure at any point in an enclosed fluid at rest is transmitted undiminished to all points in the fluid. With that said; in a hydraulic brake system, if the piston in the master cylinder(the part your foot pushes on) is one inch square area and you push with 100 pounds, then 100 pounds per square inch is transmitted to all parts of the hydraulic system. Now if the brake caliper piston(the part that pushes against the brake pad) is 2 square inches then there will be a total of 200 lbs of force being applied by the wheel cylinder, because each square inch has 100 pounds pushing on it. This is basically how cars brake systems are designed in order to reduce the amount of force required by the driver.

Btw if u want to give 67 points u must multiply that by 2 since two people answer and they get half of 67.    Im still happy with my 34 though!

8 0
3 years ago
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