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lianna [129]
3 years ago
15

one example of a question that science would not be able to test. Then, explain how it could be changed into a testable question

. i need a whole sentence and i will give all my points it's science​
Chemistry
1 answer:
Alexxx [7]3 years ago
6 0

Answer:

Explanation:

A testable question is the one which can be answered using experiment and research. A non-testable question is the one which cannot be answered using experimental trials.

Example:

Non-testable: Which is more better ice-cream or chips?

Testable: Which is more better nutritionally ice-cream or chips?

Here, in the non-testable question no parameter was given for comparision and analysis hence, it cannot be tested experimentally. Whereas, in the testable question nutritional quality is to be compared between the two food items.

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Write a balanced chemical equation for the standard formation reaction of gaseous dinitrogen tetroxide
ElenaW [278]

Answer:

N_2(g)+2O_2(g)\rightarrow N_2O_4(g)

Explanation:

Hello,

In this case, considering the required product which is dinitrogen tetroxide whose molecular formula is N₂O₄, by considering its formation reaction which is starting by both gaseous nitrogen and oxygen as shown below:

N_2(g)+O_2(g)\rightarrow N_2O_4(g)

Nevertheless, it should be balance since four oxygen atoms are present at the right side, thus, we obtain:

N_2(g)+2O_2(g)\rightarrow N_2O_4(g)

Best regards.

4 0
4 years ago
The balanced chemical equation for the reaction of hydrogen and oxygen is shown below. 2H2 + O2 Right arrow. 2H2O The number of
bagirrra123 [75]

Answer:

Equal to 0.253 mol.

Explanation:

Hello,

In this case, since hydrogen and water are in a 2:2 molar relationship, the number of moles of hydrogen necessary to produce 0.253 mol of water will be also 0.253 mol as shown on the following stoichiometric factor:

n_{H_2}=0.253mol H_2O*\frac{2molH_2}{2molH_2O} =0.253mol H_2

Therefore, The number of moles of hydrogen that is needed to produce 0.253 mol of water is equal to 0.253 mol.

Best regards.

8 0
4 years ago
Read 2 more answers
If 0.545J of heat leads to a 0.892 degree C change, what mass of water is present?
jolli1 [7]

Answer:

I got .146 g of water

Explanation:

Refer to this equation:

Q= mcΔt

Q= .545 J

c= 4.186 J/g

Δt= .892

plug in values:

.545 J = m(4.186 J/g)(.892°C)

simplify:

.545 J = m(3.734 J/g°C)

.146 g

4 0
4 years ago
______ The total number of protons and neutrons in the nucleus.
MArishka [77]

Answer:

A. Atomic Number

Explanation:

The mass number is used to calculate the number of neutrons & electrons in one atom of an element. In order to calculate the number of neutrons you must subtract the atomic number from the atomic mass.

7 0
3 years ago
What happens where Earth's plates meet?
anzhelika [568]

Answer:

an earthquake

Explanation:

the tectonic plates rub together sending shockwaves

4 0
3 years ago
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