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FromTheMoon [43]
3 years ago
7

Make a report on how scientists determine the different features of the Earth? How is it beneficial to humans?

Chemistry
1 answer:
poizon [28]3 years ago
8 0

Answer:

Help me

Explanation:

I need help :( pls

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Suppose 2.8 moles of methane are allowed to react with 5 moles of oxygen.
Ronch [10]

Answer : The limiting reagent is O_2

Solution : Given,

Moles of methane = 2.8 moles

Moles of O_2 = 5 moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

CH_4+2O_2\rightarrow CO_2+2H_2O

From the balanced reaction we conclude that

As, 2 mole of O_2 react with 1 mole of CH_4

So, 5 moles of O_2 react with \frac{5}{2}=2.5 moles of CH_4

From this we conclude that, CH_4 is an excess reagent because the given moles are greater than the required moles and O_2 is a limiting reagent and it limits the formation of product.

Hence, the limiting reagent is O_2

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4 years ago
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Shown below is a lewis structure of the formamidinium ion. what geometry is exhibited by the two nitrogens in the formamidinium
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7 0
3 years ago
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Which of the following is considered a contact force
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c. friction between two charged particles

Explanation:

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What is the main function of this organ system It protects vital organs from injury. It is the first line of defense and keeps t
liraira [26]

Answer:

Organ systems & their main functions

Explanation:

The chest bones Rib Cage & spine - protects the vital organs (heart, lung,liver) from injury & provides structural support for body.

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