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SVEN [57.7K]
4 years ago
13

PLEASE HELP! BRAINLIEST AND 5 STAR

Chemistry
1 answer:
Vinil7 [7]4 years ago
8 0

Carbon, which could be in a organic compound, reacts with the oxygen in the air, when you heat it the carbon, two of the oxygen atoms form double covalent bonds with one carbon atom and pull the carbon away from whatever compound it was in before.

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) Any gas exerts a pressure against its surroundings. For example, if you put more gas in a balloon, it exerts more pressure and
kolezko [41]

Explanation:

As we know that molecules of a gas move far away from each other because they are held by weak Vander waal forces. So, when a balloon is filled by a gas then molecules of a gas strike at its walls leading to more number of collisions.

This will also lead to more expansion of the balloon. As we know that pressure is the force exerted n per unit area of a substance or object.

Thus, more is the kinetic energy of the molecules of the gas more will be the force exerted by them. Hence, more will be the pressure exerted.  

8 0
4 years ago
(tco 1) isotopes of an element have the same number of _____ and different numbers of _____.
seropon [69]
Protons and neutrons.  Hope this helps!!!
7 0
3 years ago
1220 pounds / 1.45 inches =?<br> What do you get when you quadruple 22.34 cm?
Brilliant_brown [7]

(a) 841 lb/in; (b) 89.36 cm


(a) 1220 lb/1.45 in = 841 lb/in

(b) To quadruple a measurement is to <em>multiply it by 4</em>.

     ∴ 4 × 22.34 cm = 89.36 cm

8 0
4 years ago
A sample of He gas in a 2 L container has a pressure of 6 atm. The He is moved into a 3 L container of Ne gas at 8 atm. What is
jenyasd209 [6]

Answer:

yhcdun vfggcbnjj. bhh hjb jnnn k inv

8 0
3 years ago
How many moles of solute are contained in a 250.0-milliliter solution that has a concentration of 0.85 M?
adoni [48]

Answer : The correct option is, 0.21 moles

Solution : Given,

Molarity of the solution = 0.85 M = 0.85 mole/L

Volume of solution = 250 ml = 0.25 L     (1L=1000ml)

Molarity : It is defined as the number of moles of solute present in one liter of the solution.

Formula used :

Molarity=\frac{\text{moles of solute}}{\text{Volume of solution in liters}}

Now put all the given values in this formula, we get the moles of solute of the solution.

0.85mole/L=\frac{\text{moles of solute}}{0.25L}

\text{moles of solute}=0.2125=0.21moles

Therefore, the moles of solute is, 0.21 moles

7 0
4 years ago
Read 2 more answers
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