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Lana71 [14]
3 years ago
14

Anyone who wants to be my friend?I'm new here​

Chemistry
2 answers:
Ugo [173]3 years ago
8 0

Hi yh sure i'll be ur frnd

myself Anna nice to meet ya

ur intro plz

Tatiana [17]3 years ago
8 0

Answer I am a strippr :

Explanation:

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Explanation:

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2 years ago
How do you determine the environmental impact of human activities?
coldgirl [10]

Answer:

Environment refers to everything that surrounds an individual and interacts between them. The factors that control the environment can be biotic and abiotic.

Humans have greatly affected the environment. Some of the ways in which the environment is affected by humans are as follows-

(1) Humans have constructed industries and factories that have released a huge amount of toxic gases into the atmosphere.

(2) These harmful gases have increased the earth's global temperature. As a result of which the global warming effect has increased.

(3) The waste materials eliminated from these industries mix with the rivers and streams and pollute the water. It degrades water quality.

(4) The fossil fuels are exhausted at a very high rate.

(5) The spilling of the oils in the oceans has affected the marine species drastically.

(6) Due to the extensive mining at different places, soil fertility has decreased considerably.

(7) Cutting down trees for settlement purposes and other infrastructures.

6 0
3 years ago
An element X forms a compound XH 3 with hydrogen. Another element Y forms a compound YX 2 with X. Given that the valency of hydr
Marina CMI [18]
XH_{3}
H has a positive 1 charge. This means that having 3H = +3<span>.  This is a neutral compound so x= -3 because X+3H= 0

Y</span>X_{2} is also neutral so 2X+Y= 0
we know X=-3 So, 2(-3)+Y=0
-6+y=0
Y=+6 charge

 
Answer: The valency of X is -3. The valency of Y is 6
7 0
3 years ago
Which of the following is not observed in a homologous series? ​
Stolb23 [73]

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Change in chemical properties

Explanation:

4 0
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lutik1710 [3]

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<h2><em><u>4. Ability to obtain and use energy</u></em></h2>
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