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Veronika [31]
2 years ago
15

Which of the following conditions would lead to a small population size? a. a low birth to death ratio b. a high birth to death

ratio c. immigration d. large number of resources Please select the best answer from the choices provided A B C D Mark this and return
Chemistry
1 answer:
Vinil7 [7]2 years ago
4 0

Answer:

Choice A.

A low birth to death ratio

Explanation:

A low birth to death ratio means that people are dying faster than they are being born. This leads to a decreasing population size.

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Which energy transformation occurs in an<br> electric motor?
vivado [14]

Answer:

Electrical energy to mechanical energy

Explanation:

In an electric motor, the energy transformation that is involve is a move from from electrical energy to mechanical energy.

For every system, according to the law of conservation of energy "energy is neither created nor destroyed but transformed from one form to another".

  • An electric motor converts electrical energy to mechanical energy
  • The electrical energy passes through and electromagnet set up.
  • This then cause the motion to rotate.
  • Therefore, electrical energy is transformed to mechanical energy.
5 0
2 years ago
Help pls! thank u (:
alexgriva [62]

Answer:

7.65 moles of silver are produced

Explanation:

Zinc, Zn, reacts with silver nitrate, AgNO3, as follows:

Zn + 2AgNO3 → Zn(NO3)2 + 2Ag

<em>Where 1 mole of Zn reacts with an excess of AgNO3 to produce 2 moles of Ag</em>

To solve this question we must convert the mass of Zn to moles and, using the chemical equation, we can find the moles of Ag as follows:

<em>Moles Zn (Molar mass: 65.38g/mol):</em>

250g Zn * (1mol / 65.38g) = 3.824 moles Zn

<em>Moles Ag:</em>

3.824 moles Zn * (2mol Ag / 1mol Zn) =

<h3>7.65 moles of silver are produced</h3>
7 0
3 years ago
PLS HELP 6TH GRADE ITS ONE QUESTION ABOUT SCIENCE
julia-pushkina [17]

Answer: The answer is C

Explanation:

5 0
3 years ago
Read 2 more answers
3)
TiliK225 [7]

Answer: A) Sodium Na and Magnesium Mg

Explanation:

In the period table, you can see that Sodium (group 1) has 11 protons, and Magnesium (group 2) has 12 protons. 11+12=23 protons

5 0
3 years ago
Discuss whether glucose is a mixture of water and carbon dioxide or is it a new compound?
Aleksandr [31]

Answer:

SEE BELOW

Explanation:

Glucose (C6H12O6) is an organic compound composed of the elements carbon, hydrogen and oxygen.

8 0
2 years ago
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