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11111nata11111 [884]
3 years ago
14

The introduction of synthetic fertilizers and chemical pesticides to farming date back to the __________

Chemistry
1 answer:
laiz [17]3 years ago
4 0

Answer:

Humans started to use pesticides dating back to before 2000 BC.

Hope this helps ^-^

Explanation:

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Elements 3 to 10 (Li to Ne) show a more or less steady increase in IE. What does this tell you about the energy level that each
Karo-lina-s [1.5K]

Elements 3 to 10 (Li to Ne) show a more or less steady increase in ionization energy.

<h3>What is ionisation energy?</h3>

The amount of energy required to remove an electron from an isolated atom or molecule.

The major difference is the increasing number of protons in the nucleus as you go from lithium to neon. That causes greater attraction between the nucleus and the electrons and so increases the ionization energies. In fact the increasing nuclear charge also drags the outer electrons in closer to the nucleus.

Learn more about the ionisation energy here:

brainly.com/question/20658080

#SPJ1

6 0
2 years ago
if the mass of a box was 400 grams, and the length is 2cm the width is 2cm and the height is 1cm. what is the density?
oksano4ka [1.4K]

Answer:

The density of the box is 6.25g/cm³

Explanation:

400 ÷ 4³ = 6.25

4 0
2 years ago
Look at this graph:
ira [324]
The slope is 3/2
3 over 2

4 0
2 years ago
A mole is the amount of a substance that contains as many particles as the number of atoms in 12 grams of what isotope?
Ray Of Light [21]
The SI unit for amount<span> of </span>substance<span> is the </span>mole<span>. It has the unit symbol mol. The proportionality constant is the inverse of the Avogadro constant. The </span>mole<span> is defined as the </span>amount<span> of </span>substance that contains<span> an equal </span>number<span> of elementary entities as there are </span>atoms in 12g<span> of the </span>isotope<span> carbon-</span>12<span>.

Hope This Helped! :3</span>
3 0
2 years ago
Where did the molecules of carbon dioxide come from while the tortilla chip was burning
CaHeK987 [17]
The answer can be explained when you burn something cleanly (with a very hot item) or not. With a candle lots of Carbon dioxide is producted but when using a bunson burner hardly any CO2 is produced. 
5 0
2 years ago
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