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kobusy [5.1K]
3 years ago
9

Which of the following questions is most testable through scientific experimentation?

Chemistry
2 answers:
Dominik [7]3 years ago
3 0
The Question that I believe that is the most testable through scientific experimentation would be the first question.

Which gelatin takes longer to set. Gelatin with fruit or gelatin without fruit.
Genrish500 [490]3 years ago
3 0

Answer:

Which gelatin takes longer to set: gelatin with fruit or gelatin without fruit?

Explanation:

Option A is Correct. In chemistry the rate of reaction or kinetics is always studied so this is most testable through scientific experimentation

Option B is Incorrect. This is more relevant in the hospitality business and is not testable through scientific experimentation.  

Option C is Incorrect. This is more relevant in the hospitality business.  

Option D is Incorrect. This has more to do with commerce or economics.  

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Please help, due tomorrow! ツ
oksano4ka [1.4K]

There are two kinds of mixtures

a) homogeneous : the boundary of the two components is not physically distinct

b) heterogeneous:the boundary of the two components is  physically distinct

the following separation techniques are common for mixtures

1) filtration: if the two components are forming heterogeneous mixture we can separate them by filtration.

2) boiling: if boiling point of one of the components is less than other

3) magnetic separation: if one of the component is magnetic

4)sieve method: for solid components with difference in size of particles

5) hand picking

Thus the correct match will be as shown in the figure


3 0
3 years ago
HELPP ASAP PLEASE SEE IMAGES
Simora [160]

Answer:

1st paragraph:

1.compound 2.physical 3.elements 4.water 5. gas 6.white 7. season 8.ratio 9.formula 10.elements 11.atoms 12.subscript 13.one

2nd paragraph

1.stable 2.many/reactive 3.eight 4.helium 5.seven 6.outer 7.one 8.level 9. compounds 10.reactive 11. seven 12. Eight 13.lose 14.gain 15. Share 16.compounds 17. atoms

Explanation:

I just did the 1st page. Gimme a min and I'll do the second.

4 0
3 years ago
What is the ph of a solution of 0.550 m k2hpo4, potassium hydrogen phosphate?
Solnce55 [7]
We assume that we have Ka= 4.2x10^-13 (missing in the question)
and when we have this equation:
H2PO4 (-) → H+  + HPO4-
and form the Ka equation we can get [H+]:
Ka= [H+] [HPO4-] / [H2PO4] and we have Ka= 4.2x10^-13 & [H2PO4-] = 0.55m
by substitution:
4.2x10^-13 = (z)(z)/ 0.55
z^2 = 2.31x 10^-13
z= 4.81x10^-7
∴[H+] = 4.81x10^-7
when PH equation is:

PH= -㏒[H+]
     = -㏒(4.81x10^-7) = 6.32

3 0
3 years ago
An ______ cannot be broken down into any other substance
QveST [7]

Answer:

an atom cannot be broken down

6 0
3 years ago
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A sample of 10K gold contains the following: 10.0g gold, 4.0g silver, 5.0g copper, and 5.0g nickel. What is the percent gold in
stellarik [79]

Answer:

oook

hi I am so sorry sorry sorry sorry I don't no answer

Explanation:

but you follow me and give me brainliest ok by by by by

6 0
2 years ago
Read 2 more answers
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