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Nina [5.8K]
3 years ago
9

Please help me solve this question. Tell the method too

Chemistry
1 answer:
Shkiper50 [21]3 years ago
7 0

The answer is - 4 thats the charge of Si O

⁴ ¹0

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2. Mitosis is great for repair and damage. TRUE OR FALSE
inn [45]

Answer:

TRUE

HOPE THIS HELPS!

Explanation:

3 0
3 years ago
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How many moles of h2o are produced when 3.25 moles of o2 react in 2c2h6 + 7o2 ---> 4co2 + 6h2o
Alenkinab [10]

Answer:

2.78 moles of water are produced.

Explanation:

Given data:

Number of moles of H₂O produced = ?

Number of moles of oxygen react = 3.25 mol

Solution:

Chemical equation:

2C₂H₆ + 7O₂       →     4CO₂ + 6H₂O

Now we will compare the moles of water with oxygen.

                O₂          :          H₂O

                 7            :           6

               3.25        :           6/7×3.25 = 2.78 mol

5 0
3 years ago
What are some uses of metals?
VashaNatasha [74]
They are used to make plane bodies.
Some are used for electrical wires eg copper because they are good conductors of electricity.
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used to make jewelry eg gold and silver<span />
4 0
3 years ago
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Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4 kilometers away. It takes Amy 40 minutes t
Inessa [10]

2 m/s

Explanation:

The distance to school is 14.4 kilometers which are equal to 14400 meters.

Amy takes 40 minutes which are equal to 40 × 60 = 2400 seconds to arrive at school.

Bill takes 40 + 20 = 60 minutes which are equal to 60 × 60 = 3600 seconds to arrive at school.

Amy’s average speed = distance (m) / time (s)

Amy’s average speed = 14400 m / 2400 s = 6 m/s

Bill’s average speed = 14400 m / 3600 s = 4 m/s

How much faster (in meters/second) is Amy’s average speed for the entire trip?

Amy’s average speed - Bill’s average speed = 6 m/s - 4 m/s = 2 m/s

Learn more about:

average speed

brainly.com/question/10436437

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3 years ago
Name the functional group present in each of the following organic compounds?
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1. Alcohol
2. Halo-alkane
6 0
4 years ago
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