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Luda [366]
3 years ago
14

What is the word that means litter on the ground or harmful chemicals in the water?

Chemistry
1 answer:
nydimaria [60]3 years ago
3 0
Pollution might be the word you are looking for.

Pollution means the introduction of a substance(s) that is harmful to the environment,
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Calculate the weight of keame if he has potential energy of 67J and standing at a hieght of 10m.(take g100m/s)​
DanielleElmas [232]

Answer:

height(h)=10 m

acceleration due to gravity (g)=10 m/s^2

mass (m)=?

potential energy=67

or,mgh= 67

or,m×10×10=67

or,m=67/100

or,m=0.67 kg

Therefore,m= 670 grams

7 0
3 years ago
What is the product of radioactive decay 4/2he called?
riadik2000 [5.3K]

A large unstable nucleus becomes tinier and emits an alpha particle during Alpha decay. 4/2He or the alpha particle that consists of two protons and two neutrons can be discharged from the nucleus during the disintegration of radioactive decay. It has a charge of positive 2.

3 0
3 years ago
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HELP ME PLEASE ITS DUE 11:59 TODAY
Dmitry_Shevchenko [17]

Im sorry but its a pdf i can write on it :(

7 0
3 years ago
What is the volume of 2 mol of chlorine gas at STP?
vladimir1956 [14]
The conversion factor for volume at STP is \frac {1mol}{22.4L} or \frac {22.4L}{1mol}. Since we want volume, we would use \frac {22.4L}{1mol}. We conclude with the following calculations:

2molCl_{2}*\frac {22.4LCl_{2}}{1molCl_{2}} = 44.8L Cl_{2}

The answer is 44.8L Cl2
5 0
3 years ago
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Write Lewis formulas that follow the octet rule for C2H4
umka21 [38]
Hello there!

This is an interesting thing I did last year in my Sophomore year.

Let me try this out!

First, we wanna start by drawing a standard structure with carbon in the middle, as hydrogen can only form one bond. (Please see pictue #1)

We know that the center carbon has too many bonds (maximum of 4), so we will shift two hydrogen over to the other carbon. (See picture #2)

Now each carbon has too few bonds, so we will make a double bond between them.

The last picture is the correct structure of C2H4, ethylene. The octet rule is kept.


I am terrible when it comes to drawing things. I hope this helps~!



7 0
3 years ago
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