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2 years ago

5

List any two examples of man-madede astery

1 answer:

PIT_PIT [208]2 years ago

6 0

Answer:

Man-made disasters can include hazardous material spills, fires, groundwater contamination, transportation accidents, structure failures, mining accidents, explosions and acts of terrorism. There are actions that we can take to prepare to react appropriately to these events.

Explanation:

hope it will help

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A teacher cut an apple into three wedges of the same size.She dipped one wedge in lemon juice, dipped another in water ,and left

jasenka [17]

It’s national park and I have to do the same as I have to get some money drops and then we will have a lot to go back on and I get the same

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3 years ago

Select True or False: The reaction of hydrogen chloride gas with propene will yield 1-chloropropane as the main product

kifflom [539]

Answer:

False

Explanation:

My first response got deleted by brainly so here, again

3 0

2 years ago

4 moles of hydrogen react with 5 moles of oxygen to form water, identify the excess reagent?

Fynjy0 [20]

Answer:

Excess Reagent = oxygen

Explanation:

Limiting reagent: The substance that is totally consumed when the reaction is completed.

Excess reagent: The substance left after the limiting reagent is consumed completely

The balanced chemical equation for formation of water is as follow:

$2H_{2}+O_{2}\rightarrow 2H_{2}O$

This means when 2 moles of hydrogen reacts with 1 mole of oxygen, 2 moles of water is produced.

Hence the ratio in which hydrogen and oxygen gas reacts is 2:1

Now if 2 mole hydrogen require 1 mole of oxygen ,then 4 mole hydrogen need 2 mole of oxygen.

$H_{2}:O_{2}=2:1$

or

$H_{2}:O_{2}=4:2$

Here 5 mole of oxygen is reacting but only 2 mole is required .

Oxygen is in excess.

5 0

3 years ago

They dump large amounts of rainwater that causes flooding. *

IgorC [24]

Answer =Tsunamis because they flood places and areas

3 0

2 years ago

Read 2 more answers

Im hvaing a hard time getting the right answer

Tanya [424]

Answer:

$V=23.9mL$

Explanation:

Hello!

In this case for the solution you are given, we first use the mass to compute the moles of CuNO3:

$n=2.49g*\frac{1mol}{125.55 g}=0.0198mol$

Next, knowing that the molarity has units of moles over liters, we can solve for volume as follows:

$M=\frac{n}{V}\\\\V=\frac{n}{M}$

By plugging in the moles and molarity, we obtain:

$V=\frac{0.0198mol}{0.830mol/L}=0.0239L$

Which in mL is:

$V=0.0239L*\frac{1000mL}{1L}\\\\V=23.9mL$

Best regards!

6 0

3 years ago