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fredd [130]
3 years ago
7

ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST

Chemistry
1 answer:
s344n2d4d5 [400]3 years ago
7 0

Answer:

Atoms consist of at least some negatively charged particles (Electron)

Explanation:

J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons.

Please correct me if I'm wrong.

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Covalent bonds are formed from the sharing of valence electrons
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How much force is required to accelerate a 22 kg mass at 6 m/s2?s​
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<h3>F=132k.gm/s^2</h3>

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3 years ago
PLEASE HELP ME 20 POINTS!!!!!!!!!!
zhuklara [117]

2.66 molecules of ammonia are produced

Explanation:

We have bellow the chemical reaction between nitrogen (N₂) and hydrogen (H₂) which produce ammonia (NH₃):

N₂ + 3 H₂ → 2 NH₃

From the chemical reaction we see that 1 molecule of nitrogen reacts with 3 molecules of hydrogen, so 4 molecules of nitrogen will react with 12 molecules of hydrogen but we only have 4 molecules of hydrogen available, so the limiting reactant will the hydrogen. Knowing this we devise the following reasoning:

if       3 molecules of hydrogen produces 2 molecules of ammonia

then 4 molecules of hydrogen produces X molecules of ammonia

X = (4 × 2) / 3 = 2.66 molecules of ammonia

However it does not make sense to produce half a molecule of something (you can not do this in the real world), the problem will make sense if you talk about the number of moles of each substance, because in 1 mole of substance you have 6.022 × 10²³ molecules.

You may find in the attached picture the drawing of the molecules.

Learn more about:

limiting reactant

brainly.com/question/13979150

#learnwithBrainly

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3 years ago
Score: Two or more substances that are blended together but not chemically combined make up a(n) _____. element compound mixture
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Two or more substances that are blended together but not chemically combined make up a mixture.
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3 years ago
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