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Liono4ka [1.6K]
3 years ago
7

Using the periodic table, complete the table to describe each atom. Type in your answers.

Chemistry
1 answer:
katovenus [111]3 years ago
5 0

Answer:

A<em>=</em><em>4</em>

<em>B</em><em>=</em><em> </em><em>4</em><em>+</em><em>2</em><em> </em><em>=</em><em>6</em>

<em>C</em><em>=</em><em>C</em><em>arbon</em>

<em>D</em><em>=</em><em>10</em>

<em>E</em><em>=</em><em>22</em>

<em>F</em><em>=</em><em>Argon</em><em> </em>

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If you add energy to water , you increase the temperature of water. This is why when you add so much heat to water, it will boil and become gas, as gases have more energy than liquids do, and liquids have more energy than solids do.
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Who proposed a periodic table that accommodated for the discovery of new elements?
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I think William Ramsey
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A geologist finds ripples preserved in ancient sedimentary rock that look just like ripples made by water in mud. He concludes t
MArishka [77]

Answer:

D.  because water and mud behaved in a similar way in the past as they do today

Explanation:

One of the fundamental theories in the field of earth science is the theory of uniformitarianism.

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Therefore, ripple marks just as they form today from action of mud and water would be formed in a similar way in the past.

6 0
3 years ago
A scientist put red blood cells in water that contained salt. Over time, the red blood cells burst. What is most likely true?
Tamiku [17]

Answer: There was a lower concentration of salt in the water than in the cells.

Explanation:

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When the red blood cells are put in water that contained salt and the red blood cells burst after some time.

This means the solvent has moved from outside to inside the cell and this is possible only when the concentration of solute is high inside the cell than outside. That means the solution has low concentration of solute as compared to the cell and was a hypotonic solution.

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The temperature of a 95.4 g piece of Cu increases from 25.0 °C to 48.0 °C when the Cu absorbs 849 J of heat. What is the specifc
melisa1 [442]
<h3>Answer:</h3>

0.387 J/g°C

<h3>Explanation:</h3>
  • To calculate the amount of heat absorbed or released by a substance we need to know its mass, change in temperature and its specific heat capacity.
  • Then to get quantity of heat absorbed or lost we multiply mass by specific heat capacity and change in temperature.
  • That is, Q = mcΔT

in our question we are given;

Mass of copper, m as 95.4 g

Initial temperature = 25 °C

Final temperature = 48 °C

Thus, change in temperature, ΔT = 23°C

Quantity of heat absorbed, Q as 849 J

We are required to calculate the specific heat capacity of copper

Rearranging the formula we get

c = Q ÷ mΔT

Therefore,

Specific heat capacity, c = 849 J ÷ (95.4 g × 23°C)

                                        = 0.3869 J/g°C

                                        = 0.387 J/g°C

Therefore, the specific heat capacity of copper is 0.387 J/g°C

3 0
3 years ago
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