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kondor19780726 [428]
2 years ago
14

If an atom has 15 protons, 11 neutrons, and 16 electrons, what is the atom's electrical charge? A. -5 B. -1 C. +1 D. +5

Chemistry
1 answer:
Helen [10]2 years ago
4 0

Answer:

it's out of the syllabus I can't help

Explanation:

Blanka ajabdjdhsjbsskhsjshsjsvssgshshs

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Do subatomic particles have mass
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Answer:

Yes

Explanation:

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5 0
3 years ago
A sample of gas occupies 10.0 L at 240°C under a pressure of
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Answer: 1090°C

Explanation: According to combined gas laws

(P1 × V1) ÷ T1 = (P2 × V2) ÷ T2

where P1 = initial pressure of gas = 80.0 kPa

V1 = initial volume of gas = 10.0 L

T1 = initial temperature of gas = 240 °C = (240 + 273) K = 513 K

P2 = final pressure of gas = 107 kPa

V2 = final volume of gas = 20.0 L

T2 = final temperature of gas

Substituting the values,

(80.0 kPa × 10.0 L) ÷ (513 K) = (107 kPa × 20.0 L) ÷ T2

T2 = 513 K × (107 kPa ÷80.0 kPa) × (20.0 L ÷ 10.0 L)

T2 = 513 K × (1.3375) × (2)

T2 = 1372.275 K

T2 = (1372.275 - 273) °C

T2 = 1099 °C

8 0
3 years ago
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Which of the following is considered a STRONG electrolyte? C12H22O11 HC2H3O2 PbCl2 CH3OH NH4NO3? please explain
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I believe the correct answer from the choices listed above is the fifth option. Of the following , the strong electrolyte would be NH4NO3.  NH4NO3<span> is a salt and completely dissociates in aqueous solution. Hope this answers the question. Have a nice day.</span>
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2 years ago
Which best describes a neutralization reaction?
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Answer:

D got it right

Explanation:

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3 years ago
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