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
wolverine [178]
4 years ago
15

Solve using significant figures 8.647 + 45.969

Chemistry
2 answers:
marishachu [46]4 years ago
7 0

Answer:

54.62

Explanation:

When you are adding numbers the significant figures for the result must be the smallest number of significant figures from the numbers you are adding.

In this case, you have 8.647 with 4 significant figures

And 45.969 with 5 significant figures

So, your result must have 4 significant figures.

Now, when you add the numbers you obtain:

8.647+45.969 = 54.616

But this result has 5 significant figures, so you need to round to the next integer, in this case, you should round to the number 2 because the number to follow the 1 is greater than 5.

Then you have that 54.616 rounded to the next integer is 54.62 with 4 significatn figures.

Murrr4er [49]4 years ago
5 0

Answer:

54.616

Explanation:

8.647 + 45.969

or rewrite for easier look:

45.969 +

 8.647 =

54.616

Hope this helped :3

 

You might be interested in
When lewis structures are drawn, do you only show valence electrons??
Lynna [10]
Yes you do cause its more explanation to
 <span />
8 0
3 years ago
In what way may drugs be used to affect neurotransmitters?
Orlov [11]
Drugs interfere with the way neurons send, receive, and process signals via neurotransmitters. Some drugs, such as marijuana and heroin, can activate neurons because their chemical structure mimics that of a natural neurotransmitter in the body. This allows the drugs to attach onto and activate the neurons. Although these drugs mimic the brain’s own chemicals, they don’t activate neurons in the same way as a natural neurotransmitter, and they lead to abnormal messages being sent through the network.

Other drugs, such as amphetamine or cocaine, can cause the neurons to release abnormally large amounts of natural neurotransmitters or prevent the normal recycling of these brain chemicals by interfering with transporters. This too amplifies or disrupts the normal communication between neurons.
3 0
3 years ago
List the physical properties for the element Kr
Tanzania [10]
Uranium fission is a property
3 0
3 years ago
Write a balanced chemical equation for the standard formation reaction of gaseous dinitrogen tetroxide n2o4 .
eduard
<span>Answer: 3 N2H4 (l) = 4 NH3 (g)+ N2 (g) 2 N2H4 (l) + N2O4 (g) =3 N2 (g)+ 4 H2O (g)</span>
3 0
3 years ago
Read 2 more answers
Why does each salt give off one dominant color instead of the entire spectrum
amm1812
It gives off a certain colour because when the spectrum is combined........I'm not sure if that's write but i think it is.....not 100% sure tho
3 0
3 years ago
Other questions:
  • Calculate the volume in liters of a 0.360 mol/l barium acetate solution that contains 100.g of barium acetate (Ba(C2H3O2)2) . Ro
    11·1 answer
  • Which olefin should predominate in the product of the dehydration of 2-methyl-2-butanol?
    7·1 answer
  • Draw the structural formula for a hydrogen molecule (H2) and an oxygen molecule (O2). Remember that each line represents an elec
    14·2 answers
  • As the given number of neutrons in the nucleus of a given atom of an element increases, the atomic number of that element
    11·2 answers
  • Classify this reaction: 2Al+N2-&gt;AlN.
    11·1 answer
  • A purified protein has a molecular mass of 360 kDa when measured by size exclusion chromatography. When analyzed by gel electrop
    6·1 answer
  • HELP ME PLS!! I FORGOT TO STUDY Which may result from an increase in friction?
    8·2 answers
  • Global warming is mainly due to
    9·2 answers
  • Pleaseeeeeefgghhbbbbbbbbbb
    8·1 answer
  • Equation for questions 1-4:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!