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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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How do properties of waves affect light and sound
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Explanation:

Both light and sound can be described in terms of wave forms with physical characteristics like amplitude, wavelength, and timbre. Wavelength and frequency are inversely related so that longer waves have lower frequencies, and shorter waves have higher frequencies.

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3 years ago
Is this correct?<br> Plz answer ASAP!
Angelina_Jolie [31]

YES IT'S @LL CORRECT

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Which of the following describes the location and energy of all the valence electrons
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1s22s22p6<u>3s23p4</u>

Explanation:

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Draw the product(s) that are expected when tert-butyl bromide undergoes solvolysis in isopropanol, (CH3)2CHOH.
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Those reactions in which Alkyl Halide reacts with the solvent without the involvement of any acid or base is called as Solvolysis. In given problem <em>tert</em>-Butyl Bromide is a tertiary Alkyl Halide and we know well that tertiary alkyl halides undergo SN¹ and E¹ elimination reaction due to the formation of stable tertiary carbocation. In given example after the formation of carbocation when Isopropyl act as nucleophile it will produce ether and when it acts as a base it will produce unsaturated compound. The reaction along with both products is shown below,

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what is the percent by mass of a solution that contains 30 grams of potassium nitrite in 0.5 kilograms of water?
Makovka662 [10]

Answer:

5.66 %.

Explanation:

<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>

<em />

<em>mass % = (mass of solute/mass of solution) x 100.</em>

<em></em>

mass of potassium nitrite = 30.0 g,

mass of the solution = mass of water + mass of potassium nitrite = 500.0 g + 30.0 g = 530.0 g.

<em>∴ mass % = (mass of solute/mass of solution) x 100</em> = (30.0 g/530.0 g) x 100 = <em>5.66 %.</em>

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