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3 years ago

You need to go through a closed door to escape a fire. which action should you take?

2 answers:

6 0

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

If you need to go through a closed door to escape a fire the action that you should take is letter B or <span>feel the door first using the back of your hand. </span>

zzz [600]3 years ago

5 0

Answer: Option (b) is the correct answer.

Explanation:

When you have to escape through the fire then it is better to check the door by slightly touching it through the back of your hand.

In this way you will have the idea that by going through the door would be safe or not and how risky it would be to pass through it.

Thus, we can conclude that the action of feeling the door first using the back of your hand should be taken by you.

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4. How is the coordination number determined?

balandron [24]

A coordination number can be determined by the usage of an atom towards a molecule from seeing how many numbers of atoms would have to be combined together in an atom.

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2 years ago

The equation for one of the reactions in the process of turning iron ore into the metal is

Leona [35]

Answer:

2100g or 2.1kg

Explanation:

Based on the equation given,

One mole of Fe2O3 gives two moles of Fe

Molar mass for Fe2O3 is 160g/mol

Molar mass for two Fe is 112g/mol

Convert 3kg to gram

3×1000=3000grams

160g of Fe2O3-112 g of Fe

3000g of Fe2O3-xg of Fe

Xg=3000×112/160

Xg=2100g

To convert to kg

2100/1000=2.1kg

Mass of Fe is 2.1kg

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3 years ago

A scientist wants to predict the effect of rise of global air temperature on sea level around the world which method a controlle

Verizon [17]

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3 years ago

Identify the type of molecule shown in the picture

BlackZzzverrR [31]

1) acid
2) ether
3) ester
4) aldehyde
5) ketone
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7 0

3 years ago

How many grams of H2O would be produced if you started with 7 moles of ethylene (C2H4 )?

nydimaria [60]

Answer:

Explanation:

so if the reaction is C2H4+3O2-->2H2O+2CO2

if there were 7 moles of C2H4:

(see the attachment)

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3 years ago