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Oliga [24]
3 years ago
13

Which of the following questions is a scientific question?

Chemistry
2 answers:
JulijaS [17]3 years ago
7 0

Answer:

B

Explanation:

A is an opinion question.

C is another opinion question

D is another opinion question

B is the only acceptible question

vaieri [72.5K]3 years ago
4 0

Answer:

B.

Explanation:

Because the rest are going to be rated on rather than have an exact answer all of the others are relying on opinion.

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Calculate the mass of ZnCl2 produced by the reaction of 49.8 grams of H2. Zn + 2HCl ZnCl2 + H2
tester [92]

Answer:

3300.85 g

Explanation:

Given data:

Mass of ZnCl₂ produced = ?

Mass of H₂ produced = 49.8 g

Solution:

Chemical equation:

Zn + 2HCl     →    ZnCl₂ + H₂

Number of moles of  H₂:

Number of moles = mass/molar mass

Number  of moles = 49.8 g/ 2.056 g/mol

Number  of moles = 24.22 mol

Now we will compare the moles of H₂ with ZnCl₂ form balance chemical equation.

                         H₂              :              ZnCl₂

                          1                :                   1

                        24.22         :              24.22

Mass of ZnCl₂:

Mass = number of moles × molar mass

Mass =  24.22 × 136.286 g/mol

Mass = 3300.85 g

6 0
3 years ago
How many different bases of DNA​
const2013 [10]

Answer:

four

Explanation:

adenine, thymine, guanine, and cytosine

4 0
3 years ago
If cells did not work together what would happen to the organisms
arlik [135]

Surely, If cells did not work together in an organism, there won't be formation of new cells and life process would stop

<h3>Living organisms </h3>

Living organisms; be it plants or animals are any organic or living system composed of cells and function as an individual entity.

  • All living organisms share a number of key characteristics or functions such as movement, respiration, homeostasis, reproduction, growth, evolution, competition and others.

  • Animals and plants also posess systems such as the digestive, skeletal, transport, nervous, excretory, respiratory and reproductive system.

  • Living organisms are also taxonomically classified as either unicellular microorganisms or multicellular plants and animals

So therefore, surely, If cells did not work together in an organism, there won't be formation of new cells and life process would stop

Learn more about living organisms:

brainly.com/question/17259533

#SPJ1

5 0
1 year ago
SHOW WORK
horsena [70]
10.0gNaCl/2.0Lsolution= 5.0g/L
4 0
3 years ago
Which of the following would have the most difficult time holding onto heat?
egoroff_w [7]

Answer:

carbon

Explanation:

cabonis not a conductor of heat

6 0
3 years ago
Read 2 more answers
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