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Anna35 [415]
2 years ago
9

1. Living things are with each other and the environment.

Chemistry
1 answer:
ipn [44]2 years ago
3 0

Living things  are  <u>interdependent </u>with each other  and the  environment.

Explanation:

Living things to grow, thrive, survive and reproduce are interdependent on each other and their surrounding environment. They depend on each other and the environment for basic requirements which support life like water, air, food etc.

The food cycle starting with the producers, consumers, decomposers and their interdependence with each other for energy production is a clear example for this.  They are dependent on each other for reproduction and growth. They are dependent on the environment for living in their habitat and for raw materials for producing food.

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What makes matter change from one state to another?
posledela

Answer: Adding or removing energy from matter

Explanation:

4 0
2 years ago
The main difference between strong electrolytes and weak electrolytes is....
Bogdan [553]
Definitely their jawline… just kidding, it’s how much they dissociate
6 0
3 years ago
a graduated cylinder has 35.0 mL of water in it before an object is dropped inside. the new volume is 38.5 mL. What is the volum
tino4ka555 [31]
Displaced volume:

final volume - initial volume

1 mL = 1 cm³

38.5 mL - 35.0 mL = 3.5 cm³

hope this helps!
4 0
3 years ago
The ka of hf is 6.8 x 10-4. what is the ph of a 0.35 m solution of hf?
damaskus [11]
When the reaction equation is:

HF ↔ H+   +   F-

and when the Ka expression
= concentration of products/concentration of reactions

so, Ka = [H+][F-]/[HF]

when we assume:

[H+] = [F-] = X

and [HF] = 0.35 - X

So, by substitution:

6.8 x 10^-4 = X^2 / (0.35 - X) by solving for X

∴ X = 0.015 M

∴[H+] = X = 0.015

when PH = -㏒[H+]

∴PH = -㏒0.015

        = 1.8
6 0
3 years ago
If the volume of a cylinder is reduced from 8.0 liters to 4.0 liters, the pressure of the gas in the cylinder will change from 7
Elza [17]

Answer:

P₂ = 140 KPa

Explanation:

Given data:

Initial volume = 8.0 L

Final volume = 4.0 L

Initial pressure = 70 KPa

Final pressure = ?

Solution:

According to Boyle's law

P₁V₁ = P₂V₂

P₂ = P₁V₁  / V₂

P₂ = 70 KPa ×8.0 L/4.0 L

P₂ = 560 KPa .L / 4.0 L

P₂ = 140 KPa

6 0
3 years ago
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