1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marysya [2.9K]
3 years ago
14

How many grams of chlorine must be added to a balloon containing 8.00 grams of helium to double its volume?

Chemistry
1 answer:
Andrew [12]3 years ago
4 0
The mole number of helium is 8/4=2 mol. Under same condition, the volume of gas is related to the mole number of the gas. So the mole number of chlorine is also 2 mol which is 142 g.
You might be interested in
4. Write the chemical equation for the reaction that occurs when baking soda (NaHCO3) is
aev [14]

Answer: HCl+NaHCO₃=NaCl+CO₂+H₂O

Explanation:

3 0
3 years ago
A solution is prepared by dissolving 23.7 g of cacl2 in 375 g of water. the density of the resulting solution is 1.05 g/ml. the
alekssr [168]
<span>The density of the solution =1.05 g/ml.
</span><span>The total mass of the resulting solution is = 398.7 g (CaCl2 + water)
</span>
Find moles of CaCl2 and water.
Molar mass of CaCl2 = 110 (approx.)

Moles of CaCl2 = 23.7 / 110  = 0.22
so, moles of Cl- ion = 2 x 0.22 = 0.44  (because each molecule of CaCl2 will give two Cl- ions)
Moles of water = 375 / 18 = 20.83

Now, Mole fraction of CaCl2 =  (moles of CaCl2) / (total moles)

total moles = moles of Cl- ions + moles of Ca2+ ions + moles of water

                  = 0.44 + 0.22 + 20.83

=21.49


So, mole fraction = 0.44 / (21.49) = 0.02

Guess what !!! density is not used. No need

4 0
3 years ago
Read 2 more answers
Throwing a snow ball during a snow
densk [106]

Answer:

S. Erosion

Explanation:

5 0
3 years ago
Zinc metal (Zn) will react with aqueous hydrochloric acid (HCI aq) to produce aqueous zinc chloride (ZnCl2 aq) and hydrogen gas
Debora [2.8K]

Answer:

5

Explanation:

Here, we want to get the equation of the reaction between Hydrochloric acid and Zinc metal

Zinc metal displaces the hydrogen from hydrochloric acid to form zinc chloride

We have the equation of reaction as:

2HCl_{(aq)}\text{ + Zn}_{(s)}\text{ }\rightarrow\text{ ZnCl}_{2(aq)}\text{ + H}_{2(g)}

3 0
1 year ago
Plants absorb the greenhouse gas carbon dioxide during the process of __.
Dvinal [7]

Answer:

during the process of carbon cycle

7 0
3 years ago
Other questions:
  • Which of the following nuclei would be the most stable?
    15·1 answer
  • Hydrates that have a low vapor pressure and remove moisture from air are said to be ___. Question 8 options: effloresce hygrosco
    10·1 answer
  • Which type of particle retains the identity of an element during a chemical reaction? a) electron
    13·1 answer
  • FOOD MACROMOLECULES INTRODUCTION
    7·1 answer
  • What is known as the amount of<br> mass in a given volume?
    6·1 answer
  • How many protons and neutrons are there in an atom of 3.K?
    7·1 answer
  • Classically, if you put a particle in a box, it can have Zero kinetic energy (ie the particle is not moving). But a quantum part
    7·1 answer
  • Hydrocarbons in which carbon atoms are connected by only single bonds in straight chains or branched chains are called
    5·2 answers
  • Why must protein digesting enzymes be stored in the inactive form
    10·1 answer
  • Which of the following describes the greenhouse effect?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!