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Ivahew [28]
3 years ago
9

Given life’s diversity, scientists cannot say with certainty

Chemistry
1 answer:
Mandarinka [93]3 years ago
6 0

Answer:

?

Explanation:

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Greenhouse effect is warming due to
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Answer:

This effect is caused by increased levels of carbon dioxide, chlorofluorocarbons and other gases in the air, many of them released by human activity. greenhouse effect The warming of Earth's atmosphere due to the buildup of heat-trapping gases, such as carbon dioxide and methane.

Explanation:

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What kind of molecule is table sugar? a. Monosaccharide c. Trisaccharide b. Disaccharide d. Octosaccharide
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Table sugar is a
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3 years ago
What is the daughter nuclide when 0-15 experiences positron emission?
Helen [10]

The daughter isotope (a decay product)of O-15 = N-15(Nitrogen 15)

<h3>Further explanation </h3>

Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,  

  • alpha α particles ₂He⁴
  • beta β ₋₁e⁰ particles
  • gamma particles γ
  • positron particles ₁e⁰

O-15 emits positron particles ₁e⁰, so the atomic number decreases by 1, the mass number is the same

Reaction

 \tt _8^{15}O\Rightarrow _7^{15}N+_1^0e

The mass number of the daughter isotope = 15, atomic number = 7

If we look at the periodic system, the element with atomic number 7 is Nitrogen (N)

5 0
3 years ago
What is the molar concentration (molarity) of 1.0 mol of KCl dissolved in 750 mL of
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Molarity is moles per liter. You have one mole in 0.750 liters

Explanation:

8 0
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Calculate the standard entropy change for the following reaction cu(s) + 1/2 O2(g) —&gt; cuo(s)
Evgen [1.6K]

3433Explanation:

the awser sucks and its not RIGHT

8 0
3 years ago
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