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Mars2501 [29]
3 years ago
6

You have a solution of calcium chloride dissolved in water. You add some more solid to the solution and stir, and the solid diss

olves. Then, you add just a spatula tipful of the solid and stir, and the solid does not dissolve. How could you describe the solution before and after adding the spatula tip amount?
Chemistry
1 answer:
IgorC [24]3 years ago
5 0

Answer:

It changed from unsaturated to saturated solution

Explanation:

Before adding the spatula tip full amount, the solution was unsaturated, but as soon as the spatula tip full amount was added and couldn't dissolve, it became unsaturated because it could not dissolve any more solute having already dissolved it maximum number of solute

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Compare protons with electrons.
Step2247 [10]
Proton:
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Mass - 1

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4 0
3 years ago
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The mass number of an atom is 15, and its atomic number is 7. The atom probably has... 8 neutrons in the nucleus. about as much
Artist 52 [7]

Answer: Option (a) is the correct answer.

Explanation:

Atomic number is the sum of only total number of protons present in an element. Whereas mass number is the sum of total number of both protons and neutrons present in an element.

For example, given atom has mass number as 15 and its atomic number is 7.

Therefore, number of neutrons present in it will be calculated as follows.

                    Mass number = no. of protons + no. of neutrons

                         15 = 7 + no. of neutrons

                    no. of neutrons = 15 - 7

                                               = 8

Thus, we can conclude that the given atom contains 8 neutrons in the nucleus.

3 0
3 years ago
Nevermind i got it dont need help thanks
OverLord2011 [107]

Answer:

Ok then...

Explanation:

4 0
3 years ago
100 points!! Brainliest if correct!!
snow_tiger [21]
Answer A: CO2

Reason: carbon dioxides formula is CO and the number next to it is the molecules
6 0
3 years ago
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Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is MHz. [speed of light
Volgvan

Answer:

50 MHz

Explanation:

The relation between frequency and wavelength is shown below as:

c=frequency\times Wavelength

c is the speed of light having value 3\times 10^8\ m/s

Given, Wavelength = 6 m

Thus, Frequency is:

Frequency=\frac{c}{Wavelength}

Frequency=\frac{3\times 10^8}{6}\ Hz

Frequency=50\times 10^{6}\ Hz

Also,

Also, 1 Hz = 10^{-6} MHz

So,<u> Frequency = 50 MHz.</u>

8 0
3 years ago
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