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
FrozenT [24]
3 years ago
13

Hi!! can someone pls help me with this question? ASAP PLS!

Chemistry
2 answers:
Angelina_Jolie [31]3 years ago
8 0
Gardening and solar panels i think
Nata [24]3 years ago
5 0

Answer:

1.Driving A Car That Uses Gasoline

2.Keeping Non-LED Lights On In Your House All Night

Explanation:

You might be interested in
Last question I think. . . <br><br><br> What would newtons third law be. . .<br><br> Help me!
Tju [1.3M]
It is Newtons Law Of Motion Broski....
3 0
3 years ago
Read 2 more answers
A student was performing a separation of a mixture of organic compounds. The final step of the process involved a filtration of
Ahat [919]

Answer:

1) No

2) The solvent contaminated the analyte

3) The solvent should be evaporated properly before washing and drying the analyte

Explanation:

During separation of organic compounds, solvents are used. These solvents are able to contaminate the analyte and lead to a large difference in melting point of solids obtained.

However, the error can be minimized by evaporating the solvent before washing, drying and melting point determination of the solid.

8 0
3 years ago
A certain box contains 200 particles of an ideal gas. how many times more likely is it to find the particles evenly split betwee
Strike441 [17]

 Each particle has two possibilities: either it is on the left hand side or it is on the right hand side.  

The probability of having them equally split is  

P(100,100) = 200C100 / 2^200  

where 200C100 is the binomial coefficient.  

For the uneven distribution we have  

P= 2 * 200C160 / 2^200  

where the factor 2 comes in because we could have 160/40 or 40/160 as a division.  

So the ratio of probabilities is  

200C100 /(2 * 200C160 )  

= 2.2 * 10^16

Hope this helps!

5 0
3 years ago
In this experiment you used an excess of the BaCl2 solution. How would your results be affected if you did not use an excess of
Igoryamba

if we did not use an excess of the BaCl2 solution it would decrease the mass percentage of sulfate in the unknown sample.

The net precipitation equation would be.

Ba2+(aq) + SO42-(aq)  → BaSO4(s)

If BaCl2 (Ba2+) is not taken in excess then the precipitation would not be completed as some of the sulfate ions would still be remaining in the solution. This would decrease the mass percentage of sulfate in the unknown sample.

If some tiny pieces of filter paper still remained mixed with the precipitate(BaSO4) then the mass of sulfate would increase and it gives a high mass percentage of the sulfate.

mass percentage of sulfate = (mass of sulfate/mass of sample)*100

Learn more about precipitation here brainly.com/question/14675507

#SPJ4

3 0
2 years ago
Who hypothesized that electrons orbit around a nucleus? Bohr Greek philosophers Thomson Dalton
makvit [3.9K]

The answer to this question is bohr Greek


4 0
3 years ago
Other questions:
  • What’s the relationship between homozygous and pure?
    10·1 answer
  • An atom nucleus contains 28 protons and the atom has a mass number of 60. how many neutrons does this atom contain? how many ele
    6·1 answer
  • ASAP !!!! On a hot summer day the temperature is 30.0C. what is the volume of a weather balloon that has 34.5 moles of helium at
    12·1 answer
  • How many grams of water can be produced when 65.5 grams of sodium hydroxide reacts with excess sulfuric acid? (4 points) You mus
    15·1 answer
  • You are using a beaker to measure volume. the beakers graduation begin at 20ml and in indicate every 10ml up to 80 ml. the botto
    9·1 answer
  • if the mole fractio of NaCl in an aqueous solution is 0.0927, what is the wt/wt% (percent by mass) of NaCl
    12·1 answer
  • 95. Using the standard enthalpy of formation data in Appendix G, calculate the bond energy of the carbon-sulfur double bond in C
    6·1 answer
  • Name 5 types of energy​
    11·2 answers
  • Which of the measurement contain three significant figure?
    14·1 answer
  • How many moles of nitrogen are in 1 mole of Al(NO3)3?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!