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Ilia_Sergeevich [38]
3 years ago
8

The graph shows the changes in the phase of ice when it is heated which of the following temperatures describes the value of A

Chemistry
2 answers:
Hoochie [10]3 years ago
8 0

Answer:

A will be much less than 0 degrees

Explanation:

See the graph

https://prnt.sc/10ahuzc

Gnesinka [82]3 years ago
5 0

Answer:

Less than 0 °C, because B represents the temperature at which ice melts.

Explanation:

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What would be the charge on an ion whose neutral atom has an electron configuration of 2.8.7?
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Answer:

–1

Explanation:

The electronic configuration of the neutral atom is given below:

2 8 7

From the electronic configuration of the neutral atom, we can see that the atom has 7 electrons in it's outermost shell. This implies that the element needs 1 more electron to complete it's octet configuration.

Therefore the charge on the ion of the element will be –1 indicating that the atom has received 1 electron to complete it's octet configuration.

5 0
3 years ago
Se disuelven 10 g de acido carbónico H2CO3 en 150 g de agua. Determina la concentración % m/m de esa disolución?
sergey [27]

The question is: 10 g of carbonic acid H2CO3 are dissolved in 150 g of water. Determine the% m / m concentration of that solution?

Answer: The% m / m concentration of that solution is 6.66%.

Explanation:

Given: Mass of solute = 10 g

Mass of solvent = 150 g

Formula used to calculate the %m/m is as follows.

Percent (m/m) = \frac{mass of solute}{mass of solvent} \times 100

Substitute the values into above formula as follows.

Percent (m/m) = \frac{mass of solute}{mass of solvent} \times 100\\= \frac{10 g}{150 g} \times 100\\= 6.66%

Thus, we can conclude that the% m / m concentration of that solution is 6.66%.

6 0
3 years ago
Which piece of evidence did Alfred Wegener's original theory of continental drift have access to?
alukav5142 [94]

Answer:

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Explanation:

hope this helps

5 0
3 years ago
Given an ideal gas has a volume of
fomenos
229.98 degree kelvin.
7 0
3 years ago
Which statement is true regarding Avogadro’s law?
Elis [28]

Answer:

3 I'm in college so I know this stuff my guy

Explanation:

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