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
drek231 [11]
3 years ago
14

Laura has 3 beakers. Each contain 200cm3 of colourless liquid. Describe how Laura could determine which beakers contain pure wat

er and which contain solutions
Chemistry
1 answer:
vova2212 [387]3 years ago
6 0

Answer:

Laura can look for a transparent and  translucent liquid and hence determine which beaker has water and which has solution

Explanation:

Pure water is a compound that is transparent in color. However, a solution is a liquid mixture comprising of a solvent or a solute. The atoms of solute occupy space between the atoms of solvent and hence are said to dissolve in it. Water can be a solvent.  

Thus, if the beaker has a transparent liquid in it, then it would be pure water while a beaker having a translucent liquid, then it would be a solution  

You might be interested in
A sample of gas contains 3.0L of nitrogen at 320kPa. What volume would be necessary to decrease the pressure at 110kPa
Phoenix [80]

Answer:

V_{2} = 8.92 L

Explanation:

We have the equation for ideal gas expressed as:

PV=nRT

Being:

P = Pressure

V = Volume

n = molar number

R = Universal gas constant

T = Temperature

From the statement of the problem I infer that we are looking to change the volume and the pressure, maintaining the temperature, so I can calculate the right side of the equation with the data of the initial condition of the gas:

P_{1} V_{1} =nRT

320Kpa*0.003m^{3} =nRT

1000L = 1m^{3}

So

nRT= 0.96

Now, as for the final condition:

P_{2}V_{2}=nRT

P_{2} V_{2} =0.96

clearingV_{2}

V_{2} =\frac{0.96}{P_{2} }

V_{2} =0.00872m_{3}

V_{2} = 8.92 L

6 0
3 years ago
3NO2 + H2O = 2 HNO3 + NO
ArbitrLikvidat [17]

Explanation:

is anyone here in the year 2018

8 0
3 years ago
Solids or liquids are not included in an equilibrium expression because:
Harlamova29_29 [7]
I believe the answer is D
7 0
3 years ago
Who often does galeras erupt
Genrish500 [490]

Answer:

Galeras has erupted more than 20 times since the 1500s. Volcanic activity has been frequent in the last five years, including an eruption in January 1993 that killed nine people on a scientific expedition to the volcano summit. Chuck Wood of VolcanoWorld was on Galeras at that time but was not injured

Explanation:

4 0
3 years ago
Read 2 more answers
Look at the diagram. What number needs to be added to balance the equation?
suter [353]

Answer:

2

Explanation:

because hydrogen is a diatomic element, so it can't be just H

4 0
3 years ago
Other questions:
  • How is Hydrogen in heavy water different from hydrogen in normal water​
    9·1 answer
  • Which substance is a diatomic molecule
    10·2 answers
  • Magnesium reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas. The reactants in this reaction are?
    15·1 answer
  • Why can a heavy rain shower cause a large amount of erosion in a desert area?
    12·2 answers
  • A mixture of 117.9 g of P and 121.8 g of O, reacts completely to form P4O6 and P4O10. Find the masses of P4O6 and P4O10
    13·1 answer
  • Question 8
    14·1 answer
  • What term describes the specific amount of time required for half of a radioactive substance to become stable
    6·1 answer
  • Please help I will mark brainliest
    8·1 answer
  • What best describes the reactants and products in a reaction at equilibrium?
    15·1 answer
  • How much kinetic energy does a 2kg object have if it is traveling at a velocity of 2m/s?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!