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
zalisa [80]
3 years ago
14

You are researching how your community protects Earth's resources.

Chemistry
1 answer:
AURORKA [14]3 years ago
6 0

Answer:

D,C

Explanation:

You might be interested in
What is the difference between a sea and an ocean
IceJOKER [234]

Seas are smaller than oceans. Oceans are where land and water meet, and are usually bigger.

8 0
3 years ago
What is the molarity of solution that contains 5.80 grams of nickel nitrate,ni(no3)2 in 500.ml?
OleMash [197]
Molarity is defined as the number of moles of solute in 1 L of solution 
molar mass of Ni(NO₃)₂ - 182.7 g/mol
number of moles of Ni(NO₃)₂ - 5.80 g/ 182.7 g/mol = 0.0317 mol
number of moles in 500 mL - 0.0317 mol
therefore number of moles in 1000 mL - 0.0317 mol / 500 mL x 1000 mL/L 
molarity of the solution is - 0.0634 M
3 0
3 years ago
Picture shown! <br><br> At 3 mmHg and 500C water exists as a<br> Liquid<br> Solid<br> Gas
mestny [16]

Answer:

At 3 mmHg and 50°C water exists as a <em><u>gas</u></em>.

8 0
3 years ago
The solubility of kL is 50g in 100 g h2o at 20 celcius. If 110 grams of of kL are added to 200 grams of h2o. What is happens ?
tia_tia [17]

Answer:

a saturated solution will form.

Explanation:

All solutions have a definite capacity of dissolving solute in it.

Unsaturated solutions are the solutions which contain less amount of solute than the maximum capacity of dissolving the solute. If more amount of solute is added in such a way a point is reached where addition of more solute cannot be dissolved. The solution is known as saturated solution.

Amount dissolved > Maximum solubility limit, the solution is saturated.

Amount dissolved < Maximum solubility limit, the solution is unsaturated.

If the amount of the salt exceeds the solubility limit, then the solution is saturated solution. If it is less than the limit given, then it is unsaturated solution.

Given,

50 g of KI is added to 100 g of water at 20 °C.

It means:

100 g of water can dissolve maximum of 50 g of  KCl.

Also,

1 g of water can dissolve maximum of 0.5 g of  KCl.

To check for 200 g of water:

200 g of water can dissolve maximum of (0.5)*200 g of  KCl.

Maximum amount of KCl that can be dissolved = 100 g

Actual amount dissolved = 110 g

Since,

Amount dissolved > Maximum solubility limit

110 g > 100 g

According to definition, the solution is saturated.

<u>Hence, a saturated solution will form.</u>

3 0
4 years ago
Describe the difference between chemical and physical weathering
Strike441 [17]

Difference Between Chemical and Physical Weathering.

Weathering processes crack, wear away, and weaken rocks.

While physical weathering breaks down a rock's physical structure, chemical weathering alters a rock's chemical composition.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Why can two igneous rocks that have the same minerals but different names?
    12·2 answers
  • What force is required to do 60 Joules of work in sliding an object 10 meters across a level floor?
    15·1 answer
  • Water boiling and turning into steam<br><br> is a chemical or physical change?
    6·2 answers
  • Balance the reaction which forms ions. Choose "blank" if no coefficient other than 1 is needed.
    11·2 answers
  • Considering the steps involved in dissolution, which of the following do you expect to speed up a dissolution process?
    12·1 answer
  • PLEASE HELP ! 2 questions
    13·2 answers
  • This for number 8 and 9
    14·1 answer
  • An animal is an example of a/an-<br><br> A: tissue <br> B:cell type<br> C:organ<br> D:organism
    6·2 answers
  • Covalent compounds..
    6·1 answer
  • Ionic bonds form between which two types of elements?​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!