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BaLLatris [955]
3 years ago
8

A helium balloon has a volume of 25 L when the pressure is 1.551 ATM and the temperature is 20°C. The balloon is cooled at a con

stant pressure until the temperature is -11°C. What is the volume of the balloon at this stage?
Chemistry
1 answer:
Leona [35]3 years ago
4 0

Answer:

The balloon is cooled at a constant pressure until the temperature is -11°C. What is the volume of the balloon at this stage?

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Write the balanced chemical equation where liquid decane burns in oxygen gas to form carbon dioxide gas and water vapor. Use the
Allushta [10]

Answer:

2C_{10} H_{22(l)} + 31O2(g)--> 20CO_{2(g)} + 22H_{2}O_{(g)}

Explanation:

2C_{10} H_{22(g)} + 31O2(g)--> 20CO_{2(g)} + 22H_{2}O_{(g)}

From the question, one can work out which states of matter to assign to which species. The trick with organic equations of this nature is to try to balance everything but oxygen first. Make sure you balance oxygen last because it is the easiest to balance.

3 0
3 years ago
6.0 moles of Na and 4.0 moles of Cl2 are mixed, how manu moles of NaCl in moles cane be made from this mixture
Sladkaya [172]

Answer:

Moles of NaCl formed is 6.0 moles

Explanation:

We are given the equation;

2 Na(s) + Cl₂(g) → 2 NaCl(s)

  • Moles of Na is 6.0 moles
  • Moles of Cl₂ is 4.0 moles

From the reaction;

2 moles of sodium reacts with 1 mole of chlorine gas to form 2 moles of NaCl

In this case;

6 moles of Na would require 3 moles of Cl₂, this means that chlorine gas is in excess.

Thus, the rate limiting reagent is sodium.

But, 2 moles of sodium reacts to form 2 moles of NaCl

Therefore;

Moles of NaCl = Moles of Na

                      = 6.0 moles

Thus, moles of sodium chloride produced is 6.0 moles

3 0
3 years ago
What are the uses of carbon dioxide
suter [353]

Answer:

Could you give brainliest btw here you go

Explanation:

Uses of Carbon in daily life

It makes up for 18% of the human body. Sugar, glucose, proteins etc are all made of it. ...

Carbon in its diamond form is used in jewellery. ...

Amorphous carbon is used to make inks and paints. ...

Graphite is used as the lead in your pencils. ...

One of the most important uses is carbon dating.

a refrigerant, in fire extinguishers,

for inflating life rafts and life jackets,

blasting coal,

foaming rubber and plastics,

promoting the growth of plants in greenhouses,

immobilizing animals before slaughter, and in carbonated beverages.

7 0
3 years ago
How many hydrogen atoms would be present in 12 molecules of water (h2o)?<br>3<br>2<br>24<br>12​
GalinKa [24]

Answer:

Two water molecules contain 4 hydrogen atoms and 2 oxygen atoms. A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.

Explanation:

4 0
3 years ago
What it the oxidation number for cl?<br> A. -2<br> B. +2<br> C. -1<br> D. +1
brilliants [131]

Answer:

c.

Explanation:

it is c.-1 because oxidation number of cl is-1

5 0
3 years ago
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