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Reil [10]
3 years ago
5

The independent variable has control and affects the

Chemistry
2 answers:
777dan777 [17]3 years ago
6 0

Answer:

An independent variable is the variable you have control over, what you can choose and manipulate. It is usually what you think will affect the dependent variable. In some cases, you may not be able to manipulate the independent variable. It may be something that is already there and is fixed, something you would like to evaluate with respect to how it affects something else, the dependent variable like color, kind, time.

Explanation:

if this didnt help just lemme know

Stella [2.4K]3 years ago
3 0

Answer:

The independent variable is the condition that you change in an experiment. It is the variable you control.

Explanation:

It is called independent because its value does not depend on and is not affected by the state of any other variable in the experiment. Sometimes you may hear this variable called the "controlled variable" because it is the one that is changed.

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nadya68 [22]
I would go with C because that seems like the best answer choice
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3 years ago
A gas has a pressure of 0.470 atm at 60.0 C. What is the pressure at standard temperature?
OLEGan [10]

Answer:

P2=0.385atm

Explanation:

step one:

Given that the temperature T1=  60 Celcius

we can convert this to kelvin by adding 273k to 60 Celcius

we have T1= 333k

pressure P1= 0.470 atm

step two:

we know that the standard temperature is T2= 273K

Applying the temperature and pressure relationship we have

P1/T1=P2/T2

substituting our given data we have

0.47/333=P2/273

cross multiply we have

P2= (0.47*273)/333

P2= 128.31/333

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3 years ago
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6 0
3 years ago
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As we increase the temperature of a liquid, its properties change. Which of the following would NOT be an expected change in the
taurus [48]

Answer: c. increase in surface tension

Explanation:

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Viscosity decreases with increase in temperature as the forces among particles decrease due to increase in kinetic energy and thus they offer less resistance to flow.

c) Surface tension : is the downward force acting on the surface of liquid due to presence of inter molecular forces or cohesive forces between the particles of liquid.

Surface tension decreases with increase in temperature as the forces among particles decrease due to increase in kinetic energy.

d) Vapor pressure: Vapor pressure of a liquid  is defined as the pressure exerted by the vapors  in equilibrium with the solution at a particular temperature.

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e) Evaporation is the the process in which liquid changes into gaseous state below its boiling point.

Evaporation increases with increase in temperature as the forces among particles decrease ad more particles can escape as vapors.

5 0
3 years ago
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