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lbvjy [14]
3 years ago
8

Jeff conducted simple experiment on the effect of rising temperature on food. He concluded that while heat is useful for cooking

food, it can lead to food spoilage if food is left outside in hot weather. He presented his results to his science class. How should the teacher and students respond if they are skeptical? (A) accept Jeff results as true.(B)reject jeffs conclusion.(C)repeat the experiment themselves.(C)be indifferent to jeffs conclusion.(D)ask Jeff to stop experimenting with food.
Chemistry
2 answers:
EleoNora [17]3 years ago
6 0
Repeat the experiment themself
Nina [5.8K]3 years ago
4 0

Answer: Option (C) is the correct answer.

Explanation:

Word "skeptical" means to have doubt. So, when Jeff conducted the experiment then his teacher and other students were skeptical about the results presented by Jeff.

That is, both the teacher and students were not sure whether Jeff's results were correct or not.

Therefore, in order to clear their doubt(s) or verify the results, the teacher and students should repeat the experiment themselves.

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What changes in space result from the death of massive stars?
lana [24]

Whenever the fuel is being used up, a star explodes and the energy leakage from a star's core ceases.

Explanation:

The dying star expands in the "Red Giant," before even the inevitable collapse starts, due to nuclear reactions just outside of the core.

It becomes a white dwarf star when the star has almost the same density as the Sun. If it's much larger, a supernova explosion could take place and leave a neutron star away. However, if it is very large–at least three times the Sun's mass–the crumbling core of the star, nothing will ever stop it from crumbling. The star is imploding into a black hole, an endless gravitational loop in space.

6 0
3 years ago
Nitrogen and hydrogen gases are combined at high temperatures and pressures to produce ammonia, NH3. If 101.7 g of N2 are reacte
Lerok [7]

Answer:

7.26 moles of NH₃ are formed in this reaction

Explanation:

This is about the reaction for the production of ammonia

1 mol of nitrogen gas reacts to 3 moles of hydrogen in order to produce 2 moles of ammonia.

The equation is: N₂ + 3H₂ → 2NH₃

In the question, we were informed that the excess is the H₂ so the N₂ is limiting reagent. We determine the moles, that has reacted:

101.7 g / 28 g/mol = 3.63 moles

So, If 1 mol of nitrogen gas can produce 2 moles of ammonia

3.63 moles of N₂ must produce ( 2 . 3.63) / 1 = 7.26 moles of NH₃

6 0
4 years ago
Read 2 more answers
10 points get it right ADVPH
Sav [38]

Answer:

Advanced Pharmaceutics Inc

Explanation:

Advanced Pharmaceutics Inc

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8 0
3 years ago
For a half-reaction in an acidic solution, which substances should you add to balance the equation?
Murljashka [212]
The answer to this question is A

7 0
3 years ago
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Is N2 a compound or an element
katen-ka-za [31]

Answer:

Element.

General Formulas and Concepts:

<u>Chemistry</u>

  • Reading a Periodic Table
  • Diatomic Elements

Explanation:

Diatomic Elements are elements that are bonded to themselves. Naturally, these elements are not found alone in nature.

Diatomic Elements:

Hydrogen

Nitrogen

Oxygen

Fluorine

Chlorine

Bromine

Iodine

Since Nitrogen is a diatomic element, we would find Nitrogen in nature as N₂.

7 0
3 years ago
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