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amm1812
4 years ago
8

If you were testing how well different laundry soaps clean your clothes the control group would be​

Chemistry
1 answer:
Svetlanka [38]4 years ago
8 0
The original clothes with no detergent on it.
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A sample of a gas is contained in a closed rigid cylinder. According to the kinetic molecular theory, what occurs when the gas i
Studentka2010 [4]

Answer:

When heating, the temperature is increased, therefore, the average kinetic energy is increased so the molecules will start moving more rapidly.

Explanation:

Hello,

Kinetic molecular theory is based on a series of specific statements:

- Gases are constituted by a raft of particles that are considered as both hard and spherical bodies under a state of constant and random movement.

- The particles are constantly moving in a straight line until they collide to each other or against walls of the container.

- There is no force of attraction nor repulsion among gas particles or among the particles and the walls of the container.

- Collisions are said to be perfectly elastic.

- The average kinetic energy of a raft of gas particles is temperature-dependent only.

- The higher the temperature the higher the average kinetic energy of the gas and the other way around.

In such a way, considering the last two statements, when heating, the temperature is increased, therefore, the average kinetic energy is increased so the molecules will start moving more rapidly in comparison to the initial state.

Best regards.

6 0
4 years ago
5.432 g significant figures
motikmotik
Do you mean rounding if u do then :
rounding to 1.s.f is 5g
rounding to 2.s.f is 5.4 g
rounding to 3.s.f is 5.43g

4 0
4 years ago
Read 2 more answers
Which choices is a biotic factor of an ecosystem?<br> • sun<br> • ants<br> • air<br> • soil
mojhsa [17]

Answer:

Aboitic factor would be soil

Biotic factor would be ants.

Explanation:

8 0
2 years ago
1.5 L of gas held under 1.0 atm, has the pressure increased to 303.9kPa, what is the new volume of the gas, if the temperature i
Ronch [10]

Answer: 1/2L

Explanation:

Volume and pressure are changed, so use Boyle's law.

P1V1=P2V2

Convert 303.9kpa to atm by mutiplying by (1/101.3)=3atm

Plug in:

1.5(1)=3(V2)

V2=1/2 L

This makes sense since volume and pressure are inversely proportional. The pressure is increased, so the volume must decrease.

6 0
3 years ago
Which statements about scientific explanations are true? I. Scientific explanations must prove that a hypothesis is true. II. Sc
harina [27]

Answer: A

Explanation:

Because we make hypothesis to find an answer to our observation or question. So if the Hypothesis is correct then the then a scientific explanation proves that a hypothesis is true. We also need more data and evidence to explain a scientific theory or question. A scientific expirement should be tested by many scientists to see if the results are correct. The more scientists aprove and the more evidence we have, the more correct our expirement is.

((hope this helped!)

7 0
3 years ago
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