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viva [34]
2 years ago
5

Mixing baking soda and vinegar is an example of an endothermic reaction. This means...

Chemistry
2 answers:
andrew11 [14]2 years ago
7 0

Answer:

it is either:

C or A

Explanation:

i think: C

Murrr4er [49]2 years ago
6 0

Answer: think a

Explanation:

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Solve this problem using the appropriate law. (Remember that ) What is the pressure of 1.9 mols of nitrogen gas in a 9.45 L tank
dedylja [7]
PV=nRT

You are funding pressure and you have V = 9.45L, n = 1.9 moles, R = gas constant, and T = 228 K

P(9.45L) = (1.9moles)(0.0821)(228K)

Find P

Multiply

9.45P = 35.57

Divide

P = 3.76 L of N

Answer should be 3.76 liters of nitrogen
7 0
4 years ago
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When a pole-vaulter who is running forward plants a pole in the ground to jump, he is converting kinetic energy into what?
anastassius [24]
D.elastic potential energy
3 0
3 years ago
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C. A 75 lb (34 kg) boy falls out of a tree from a height of 10 ft (3 m). (3 points)
KatRina [158]

(I) kinetic energy of the boy when he hits the ground =potential energy

I. e ½mv²=mgh where g is 10ms-²

m=34kg, g=10ms² , h=3m

=34×10×3

=1020j

(i i) v²=u²+2gh

v²=0²+2×10×3

= 60

v=sqrt of 60

7 0
3 years ago
What is a solution?
grandymaker [24]

Answer:

A mixture of two or more substances that are evenly mixed throughout.

Explanation:

This is because a solution shouldn't be chemically bonded, that's called a compound.

6 0
3 years ago
Describe and tell the difference between voltage and a current.
nevsk [136]
Current is the rate at which electric charge flows past a point in a circuit. In other words, current is the rate of flow of electric charge. Voltage, also called electromotive force, is the potential difference in charge between two points in an electrical field. ... Current is the effect (voltage being the cause).
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4 years ago
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