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3 years ago

In an investigation that uses the scientific method, which step immediately follows asking a question?

Chemistry

2 answers:

IceJOKER [234]3 years ago

7 0

Answer:

creating a hypothesis.

Explanation:

you need to have a hypothesis to then start designing the exp.

Debora [2.8K]3 years ago

4 0

Answer:

its c)creating a hypothesis.

Explanation:

just took quiz

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Chuck has a very detailed model of the solar system where each planet is made out of granite rock. Since his little sister reall

Ilia_Sergeevich [38]

He could be blindfolded and know which was his and which was his sister's. All he would need to do is pick them both up and if they were too big then pick them up one at a time. The lumber might make it harder to tell, but this is a question about physical properties.

So there is a change in mass which for the purpose of this question should be quite different. His sister's ought to be much lighter than his. He would find it easier to pick up.

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3 years ago

Read 2 more answers

Model B: In this model the atom is a solid sphere that cannot be divided up into smaller

vivado [14]

Answer:

They are called corpuscles

Explanation:

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3 years ago

What is the purpose of constructing a calibration curve

stellarik [79]

Answer:

Calibration curves are used to understand the instrumental response to an analyte, and to predict the concentration of analyte in a sample.

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3 years ago

Given the value of the equilibrium constant (Kc) for the equation (a), calculate the equilibrium constant for equation (b)

matrenka [14]

Answer: The value of equilibrium constant for new reaction is $1.92\times 10^{-25}$

Explanation:

The given chemical equation follows:

$O_2(g)\rightarrow \frac{2}{3}O_3(g)+\frac{1}{2}O_2(g)$

The equilibrium constant for the above equation is $5.77\times 10^{-9}$

We need to calculate the equilibrium constant for the equation of 3 times of the above chemical equation, which is:

$3O_2(g)\rightarrow 2O_3(g)$

The equilibrium constant for this reaction will be the cube of the initial reaction.

If the equation is multiplied by a factor of '3', the equilibrium constant of the new reaction will be the cube of the equilibrium constant of initial reaction.

The value of equilibrium constant for reverse reaction is:

$K_{eq}'=(5.77\times 10^{-9})^3=1.92\times 10^{-25}$

Hence, the value of equilibrium constant for new reaction is $1.92\times 10^{-25}$

5 0

3 years ago

Describe what happens to a carbon-11 atom when it undergoes positron emission.

atroni [7]

Answer:C11 -----^boron+positron

Explanation:the above reaction is nuclear reaction.

Positron emission causes the decrease in atomic number by one.

As in above example carbon-11is converted into boron isotop which has atomic number of 5.

7 0

3 years ago