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professor190 [17]
3 years ago
8

Hurry i only have till today to finsh this!

Chemistry
2 answers:
Leona [35]3 years ago
5 0

Answer:

do it yourself

Explanation:

AfilCa [17]3 years ago
4 0

Answer:

With the friction on, the minimum height I can place the skater so that he makes it all the way around the loop is 6 meters. This is about a meter higher than if the friction were turned off. The “lost” energy is going towards thermal energy. This means in real life that heat is being created due to the friction.

Explanation:

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Fynjy0 [20]

Answer:

The answer is D. New African violet plants can grow from leaves cut off of existing

6 0
2 years ago
A typical air sample in the lungs contains oxygen at 100 mmhg, nitrogen at 573 mmhg, carbon dioxide at 40 mmhg, and water vapor
nikdorinn [45]
  it  is  called the  partial pressure   because    it  is    pressure  that   is  exerted by  each gas in  a mixture of  gases if it occupy  the same   volume  of  it  own.  the  the partial pressure  of oxygen  in the air sample above is  100 mm hg, that of  carbon dioxide is 40 mmhg, for   water vapor  47 mmhg. and that of  nitrogen  is 573 mmhg
4 0
3 years ago
Two atoms of the same substance wi the different numbers of neutrons are called what
sattari [20]
They are called ISOTOPES.
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4 0
2 years ago
What is the product of radioactive decay He called?
Zinaida [17]

Answer:

Alpha, Beta, and Gamma particles according to ability to penetrate matter.

Explanation:

  • Alpha represent the largest particle which penetrates the least with a positive charge,
  • Beta particles carry a negative charge, and
  • Gamma rays are neutral.
3 0
3 years ago
24. The air in a small 250 cm birthday balloon is at a pressure of 760 torr. A boy sits on it at
kvv77 [185]

Answer:

1.14atm

Explanation:

Given parameters:

V1 = 250cm³ ;

              1000cm³ = 1dm³;  so this is 0.25dm³

P1  = 760torr

            760torr  = 1atm

       

V2  = 220cm³ ; 0.22dm³

Unknown:

New pressure = ?

Solution:

To solve this problem, we apply Boyle's law and we use the expression below:

       P1 V1 = P2V2

The unknown is P2;

            1 x 0.25  = P2 x 0.22

                 P2  = 1.14atm

7 0
2 years ago
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