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
nasty-shy [4]
3 years ago
8

Some scientists hypothesize that Earth's ozone layer is being damaged by

Chemistry
2 answers:
Amanda [17]3 years ago
6 0

Answer:

Some scientists hypothesize that Earth's ozone layer is being damaged by chlorofluorocarbons .

Explanation:

Please mark brainliest and have a great day!

Sladkaya [172]3 years ago
5 0

Answer:

chlorofluorocarbons

You might be interested in
Indicate what happens to the concentration of Pb2+ in each half cell
Taya2010 [7]

Answer:

Your questions requires diagrams of the cell to get which one is on the left or right. However, see the attached file below

The correct answer is (d) the left half-cell will decrease in concentration; and the right half-cell will increase in concentration.

Explanation:

The concentration of the Pb2+ increases in the oxidation half cell while the concentration of the Pb2+ decreases in the reduction half cell during the reaction.

In the Left Beaker (Left half cell), their is less concentration

Pb(s) ---> Pb2+(aq) + 2 e- Concentration of Pb2+(aq) increase ; Electrons going out from this side

In the Right Beaker (right half cell), their is more concentration

Pb2+(aq) + 2 e- ---> Pb(s) Concentration of Pb2+(aq) decrease ; Electrons coming in to this side

Electrons will flow from Left to Right direction.

3 0
3 years ago
What does the density of ocean water depend upon
OverLord2011 [107]

It depends on depth

Hope this helps :)

3 0
3 years ago
Read 2 more answers
1. A 50 gram sample of a radioisotope decays to 12.5 grams in 14.4 seconds. What is
stiv31 [10]

Answer:

Half life = 7.2 seconds

Explanation:

from \: decay \: equation \\ 2.303 log( \frac{n.}{nt} )  = kt \\ 2.303 log( \frac{50}{12.5} )  = k \times 14.4 \\ k =  \frac{2.303 log( \frac{50}{12.5} )}{14.4}  \\ k = 0.096288 {s}^{ - 1}  \\ since \: half \: life =  \frac{ ln(2) }{k}  \\ half \: life  =   \frac{ ln(2) }{0.096288}  \\ half \: life = 7.2 \: seconds

5 0
3 years ago
Read 2 more answers
Consider an insulated container in which water (2.58 g) solidifies at 0 oC and 1 atm on the surface of a 55 g aluminum block. As
yarga [219]

Answer:

17.41°C is the change in temperature of the aluminum block.

Explanation:

Latent heat of fusion water = 334 J/g

Heat required to freeze 1 gram of water = -334 J

Heat required to freeze 2.58 grams of water = Q

Q=2.58 g\times (-334 J/g)=-861.72 J

Heat lost by water will be equal to heat gained by the aluminum block

Q'=-Q

Q'= -(-861.72 J)=861.72 J

Formula used to calculate heat absorbed by substance:

Q=mc\Delta T

Where:

Q = heat absorbed by substance

c = specific heat of substance

m = Mass of the substance  

ΔT = change in temperature of the substance

We have :

Mass of aluminum block= m= 55 g

Heat capacity of aluminum = c = 0.9 J/g°C

Change in temperature of the aluminum block= ΔT = ?

Heat absorbed by the aluminum = Q'

861.72 J=55 g\times 0.9 J/g^oC\times \Delta T

\Delta T=17.41 ^oC

17.41°C is the change in temperature of the aluminum block.

8 0
3 years ago
If you have 3.8 grams of NaCl, how many moles of NaCl do you have?
Andre45 [30]
You will have 0.06502087426717999 moles of NaCl with 3.8 grams. 1 gram= 0.0171107563861
6 0
2 years ago
Other questions:
  • 4AI+30 2 > 2AI2O3 What id the chemical reaction?
    12·1 answer
  • What coefficient of h+ balances the atoms in this half-reaction h+ + mno2 → mn2+ + h2o?
    13·2 answers
  • A toxicologist studying mustard gas, S(CH2CH2Cl)2, a blistering agent, prepares a mixture of 0.675 M SCl2and 0.973 M C2H4 and al
    11·1 answer
  • What is meant by "the energy of an electron is quantized"?
    6·2 answers
  • Lead has a density of 11.3 g/mL. If you have 105 grams of lead,
    10·1 answer
  • Benzene contains six carbon atoms bonded in a ring. which best describes these bonds?
    9·2 answers
  • PLZZZ HELP ME ASAP
    7·1 answer
  • Explain why NOBLE gases do not for ions
    11·1 answer
  • Freshwater is distributed in both time and space
    11·1 answer
  • ASAP
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!