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Darya [45]
3 years ago
8

Can you help me pleas I don't know the answer

Chemistry
2 answers:
natka813 [3]3 years ago
7 0
It can improve quality
vaieri [72.5K]3 years ago
6 0
Makes plants more resistant to diseases and insects. can imrove quality. can increase nutritional value
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Which of earth's spheres consists of all living things?
Lady bird [3.3K]

"lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air)

4 0
3 years ago
Describe what happens to the electrons when sodium and chlorine combine to make NaCl.
kiruha [24]
When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable. The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.
4 0
3 years ago
Benzoic acid is a white crystalline powder used as a food preservative the compound contains 68.8% carbon, 5.0% hydrogen and 26.
KiRa [710]
So in this task first I think you should use the formula of the: Density/percentage

68.8% divided 26.2%= 2.625954198473282

2.625954198473282 X =

13.12977099236641
4 0
3 years ago
HELP!!! WILL GIVE BRAINLIEST!!!! 30 POINTS
NikAS [45]

Answer:

carbon = 7 atoms

hydrogen = 8 atoms

nitrogen = 4 atoms

oxygen = 2 atoms

Explanation:

Chemical formula = C₇H₈N₄O₂

Elements present:

carbon

hydrogen

nitrogen

oxygen

Number of atoms of each element.

carbon = 7 atoms

hydrogen = 8 atoms

nitrogen = 4 atoms

oxygen = 2 atoms

6 0
3 years ago
If 22.5L of nitrogen at 0.98 atm is compressed to 0.95 atm,what is the new volume?
Ksenya-84 [330]

At constant temperature, if the pressure is compressed to the given value, the volume of the nitrogen gas increases to 23.2L.

<h3>What is Boyle's law?</h3>

Boyle's law simply states that "the volume of any given quantity of gas is inversely proportional to its pressure as long as temperature remains constant.

Boyle's law is expressed as;

P₁V₁ = P₂V₂

Where P₁ is Initial Pressure, V₁ is Initial volume, P₂ is Final Pressure and V₂ is Final volume.

Given that;

  • Initial volume of the gas V₁ = 22.5L
  • Initial pressure of the gas P₁ = 0.98atm
  • Final pressure of the gas P₂ = 0.95atm
  • Final volume of the gas V₂ = ?

P₁V₁ = P₂V₂

V₂ = P₁V₁ / P₂

V₂ = (0.98atm × 22.5L) / 0.95atm

V₂ = 22.05Latm / 0.95atm

V₂ = 23.2L

Therefore, at constant temperature, if the pressure is compressed to the given value, the volume of the nitrogen gas increases to 23.2L.

Learn more about Boyle's law here: brainly.com/question/1437490

#SPJ1

6 0
2 years ago
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