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aleksandr82 [10.1K]
4 years ago
15

Which statement about subatomic particles is NOT true?

Chemistry
2 answers:
Charra [1.4K]4 years ago
7 0
Neutrons have no charge while protons are positively charged. D is the right choice
Bingel [31]4 years ago
3 0

Answer:

Protons and neutrons have the same charge.

Explanation:

The protons and neutrons are the subatomic particles present in the nucleus of an atom while the electrons are present in the outer shells.

The charge on protons is positive

Neutrons are neutral.

electrons are negatively charges

Electrons are very light as compared to protons and neutrons while protons and neutrons are almost of same weight.

So based on above facts, the false statement is

Protons and neutrons have the same charge.

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You add 168.90 grams of NaCl to a container and then you add 616.00 grams of water to that same container What is the weight per
erma4kov [3.2K]

Answer:

The weight percent of NaCl in the container​ is 21.5%

Explanation:

Given that,

Mass of NaCl = 168.90 gram

Mass of water = 616.00 grams

We need to calculate the weight percent of NaCl in the container​

Using formula of percentage of weight

weight\ \%\  of\ component\ of\ the\ solution =\dfrac{weight\ of\ the\ component\ in\ the\ solution}{total\ weight\ of\ the\ solution}\times100

Put the value into the formula

weight\ \%\  of\ component\ of\ the\ solution =\dfrac{168.90}{168.90+616.00}\times100

weight\ \%\  of\ component\ of\ the\ solution=21.5\%

Hence, The weight percent of NaCl in the container​ is 21.5%

5 0
3 years ago
What is the number of electron and neutron protons in atom 35?
Fittoniya [83]
The mass number = protons + neutrons. Bromine has a mass number of 80<span> and 35 protons so </span>80<span>-35 = </span>45<span> neutrons. b) How many electrons does the neutral atom of bromine have? The neutral atom of bromine has 35 electrons because the number of electrons equals the number of protons.</span>
6 0
3 years ago
Graphite and diamond are both solid forms of the element carbon. Which statement explains
vlada-n [284]

Answer: C diamond has a different crystal structure from graphite

Explanation:

3 0
3 years ago
sarah measures out 151 grams of SO2. how many moles is this? Express your answer to three significant figures. ​
svp [43]

150 g SO₂ = 2.36 mol SO₂


M_r = 32.06 + 2×16.00 = 32.07 + 32.00 = 64.06


Moles of SO₂ = 151 g SO₂ × [1 mol SO₂/64.06 g SO₂] = 2.36 mol SO₂



4 0
3 years ago
Which of the following correctly states the relationship between temperature and the solubility of a substance in water? Group o
stiks02 [169]

Answer:

The solubility of a substance in water increases as the temperature rises, especially for gases.

The solubility of a substance in water with temperature generally increases for ionic solids.

Explanation:

Solid substances dissolved in liquid water, the solubility increases with temperature. Gases tend to naturally have high entropy or kinetic energy than solid substances so the same still applies.

This phenomenon is due to the increase in kinetic energy acquired by the particles of the solid at higher temperatures which allows the solvent molecules to effectively break apart the solute molecules that are held together by intermolecular attractions

4 0
4 years ago
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