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svp [43]
3 years ago
12

PLEASE HELP! DUE IN 5 MINS!!

Chemistry
1 answer:
kondaur [170]3 years ago
3 0

Answer:

False

Explanation:

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Compare how fast the rate of CO2 increase is in the last few hundred years with the rate of increase (or decrease, for that matt
Tcecarenko [31]

The rate of CO2 increase is in the last few hundred years is 10 times more with the rate of increase (or decrease, for that matter) in the preceding 400,000 years.

There are many possible reasons for this cause , some primary factors are listed below:

  1. Increase in population
  2. increased emission of green house gases, as we all know auto mobile industry is growing rapidly and this vehicles releases harmful gases like CO2, CO ,etc. and increases carbon % , this CO2 is a main gas component in green house effect.
  3. Deforestation, as the amount of plant decreases the CO2 present in atmosphere increases, plants uses CO2 and sun lite to make their food via photosynthesis.
  4. Increased emission of Industrial flue gases, etc.

Learn more about green house effect here...

brainly.com/question/19521661

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7 0
2 years ago
In their experiment to form a primitive living cell, Urey and Miller set up various flasks with water vapor and the gases CO2, C
Digiron [165]
The answer is clearly the option <span>A, because in the Urey/Miller experiment, they simulated Earth's early atmosphere and they simulated the lightning as electrodes, to see if single compounds or amino acids would form. Hope this is useful</span>
4 0
3 years ago
Which answer choices correctly describe properties of covalent compounds?<br> Select all that apply.
Lana71 [14]

Answer:

Explanation:

A covalent compound is made when two or more nonmetal atoms bond by sharing valence electrons. The shared valence electrons between two nonmetal atoms is called a covalent bond. Covalent bonds are formed when two atoms begin sharing electrons

7 0
3 years ago
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How many moles of hydrogen are in 5.2 moles of C7H18
ELEN [110]

There are 1.456 moles of hydrogen in 5.2 moles of C7H18

7 0
3 years ago
Two spherical objects with a mass of 7.73 kg each are placed at a distance of 1.11 m apart. how many electrons need to leave eac
aliina [53]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Equate the gravitational force to the electrostatic force: 

<span>KC²/D² = Gm²/D² → C = m√[G/K] = 7.6√[6.67E-11/9E9] = 6.54E-10 coulombs </span>

<span>Number of electrons N = 6.24E18*C = 4.083E9 electrons</span>

4 0
3 years ago
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