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noname [10]
3 years ago
10

The winner of the 20 km race ran at an average speed of 4 m / s. How long did he take to complete the race?

Chemistry
1 answer:
Amanda [17]3 years ago
4 0

Answer: 5, 000s

Explanation:

Distance 20km=20,000m

Speed 4m/s

Time =?

Speed = distance / time

4 = 20, 000/ x

Cross multiply

4x=20, 000

X = 5, 000

X = time = 5, 000

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List the ions in solution in the electrolysis of conc.sodium chloride<br>​
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How many molecules are there in 2.30g of NH3
Vinil7 [7]

Answer:

8.13x10^22 molecules

Explanation:

We can use the Avogadro's number(6.022 x 10^23 units / mole)

2.30 g NH3 (1 mol / 17.03 g ) (6.022 x 10^23 molecules / 1 mol ) = 8.13x10^22 molecules

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Some plants can reproduce both sexually and asexually. Explain one benefit of this dual reproduction capability.
pantera1 [17]

Answer:

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Explanation:

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If you need more help on this subject, don't be afraid to ask me. I'm willing to help.

8 0
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2CH3CHO+O2=&gt; 2CH3COOH
Dovator [93]

Answer:

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7 0
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