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Temka [501]
3 years ago
14

4He 2

Chemistry
1 answer:
klio [65]3 years ago
4 0

Answer:

Bruh

Explanation:

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Hi everyone! :)) How is your day going, let me know!
Masja [62]

Answer:

its doing great!

Explanation:

breainleist plss

8 0
3 years ago
Read 2 more answers
Which quantity does a light-year measure?<br><br> A) distance<br> B) speed<br> C) time<br> D) volume
tatuchka [14]

Answer:

speed

Explanation:

6 0
3 years ago
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2074 Set B Q.No. 1 What mass of nitrogen will be requires
timurjin [86]

140 g of nitrogen (N₂)

Explanation:

We have the following chemical equation:

N₂ + 3 H₂ -- > 2 NH₃

Now, to find the number of moles of ammonia we use the Avogadro's number:

if        1 mole of ammonia contains 6.022 × 10²³ molecules

then   X moles of ammonia contains 6.022 × 10²⁴ molecules

X = (1 × 6.022 × 10²⁴) / 6.022 × 10²³

X = 10 moles of ammonia

Taking in account the chemical reaction we devise the following reasoning:

If        1 mole of nitrogen produces 2 moles of ammonia

then  Y moles of nitrogen produces 10 moles of ammonia

Y = (1 × 10) / 2

Y = 5 moles of nitrogen

number of moles = mass / molecular weight

mass = number of moles × molecular weight

mass of nitrogen (N₂) = 5 × 28 = 140 g

Learn more about:

Avogadro's number

brainly.com/question/13772315

#learnwithBrainly

7 0
4 years ago
2 Na + Cl2 --&gt; 2 NaCl<br> What is the mole ratio of chlorine to sodium chloride?
Dmitry_Shevchenko [17]

Answer:

1 : 2 ratio

Explanation:

Chlorine has a coefficient of 1, and sodium chloride has a coefficient of 2.

6 0
3 years ago
What is a safety guide line?
FromTheMoon [43]

Answer:

A safety guide lines are rules and regulations that are made to make sure place is safe and conducive for everyone.

5 0
3 years ago
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