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
lina2011 [118]
2 years ago
7

HELP PLSSSSSSSSSSSSSSSSSSS

Chemistry
2 answers:
sdas [7]2 years ago
5 0

Answer:

1: marine

2:rainforest

Temperate deciduous forest

taiga

tundra

desert

Explanation:

grigory [225]2 years ago
5 0
I agree with what the other person said
You might be interested in
If i have 340mL of a 1.5 M NaBr solution, What will the concentration be for 1000mL?
Gekata [30.6K]

Answer:

0.51M

Explanation:

Given parameters:

Initial volume of NaBr = 340mL

Initial molarity  = 1.5M

Final volume  = 1000mL

Unknown:

Final molarity = ?

Solution;

This is a dilution problem whereas the concentration of a compound changes from one to another.

In this kind of problem, we must establish that the number of moles still remains the same.

    number of moles initially before diluting = number of moles after dilution

Number of moles  = Molarity x volume

Let us find the number of moles;

          Number of moles  = initial volume x initial molarity

Convert mL to dm³;

                  1000mL  = 1dm³

                     340mL gives \frac{340}{1000}   = 0.34dm³

Number of moles  = initial volume x initial molarity  = 0.34 x 1.5 = 0.51moles

Now to find the new molarity/concentration;

               Final molarity  = \frac{number of moles}{Volume}    = \frac{0.51}{1}    = 0.51M

We can see a massive drop in molarity this is due to dilution of the initial concentration.

6 0
3 years ago
Why couldn't you substitute 3m H2SO4 for concentrated HNO3 when oxidizing copper?
schepotkina [342]

This question seems to be an essay question from experiment. Different solution of oxidizing agent will have different strength.  Sulfuric acid or H2SO4 is weaker oxidizing agent when compared to nitric acid (HNO3). In this case, if you subtitute the H2SO4 you wouldn't be able to get the same result for the experiment.



5 0
3 years ago
Read 2 more answers
Answer as many as you can please, 40 POINTS
ICE Princess25 [194]
It would be to see your awnsers

6 0
2 years ago
A balloon is filled to a volume of 1.50 L with 3.00 moles of gas at 25 °C. With pressure and temperature held constant, what wil
Vaselesa [24]

Answer: 1.6L

Explanation:

V1 = 1.50 L,

V2 =?

n1 = 3mol

n2 = 3 + 0.2 = 3.2mol

From PV = nRT

V1 /n1 = V2/n2

1.5/3 = V2 /3.2

V2 = (1.5/3/) x 3.2 = 1.6L

5 0
3 years ago
Read 2 more answers
1. Scientists create both scientific theories and scientific laws as they make observations and conduct experiments about the na
Y_Kistochka [10]

Answer:

D

Explanation:

4 0
2 years ago
Other questions:
  • How does vegetation slow and prevent sediment loss?
    8·1 answer
  • Why is burning fossil fuels negative
    7·1 answer
  • You are given an aqueous solution of NaCl. The simplest method for the separation of NaCl from the solution is
    13·1 answer
  • Which of the following reactions is a neutralization reaction? A. ZnCl2(aq) + CaCrO4(aq) → ZnCrO4(s) + CaCl2(aq) B. HNO3(aq) + L
    13·1 answer
  • If an atom contains 1 electron and 1 proton will it carry any charge or not?
    7·1 answer
  • Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball a
    6·1 answer
  • Which of the following best describes a chemical mixture​
    12·1 answer
  • Chemistry help!<br><br><br><br><br>Zoom in to see better!! ​
    7·1 answer
  • How many grams of NaOH are needed to make 250mL of a 0.1M NaOH solution?
    11·1 answer
  • How does acid base extraction work.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!