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3 years ago

What is the scientific method and how do you do it

Chemistry

2 answers:

ale4655 [162]3 years ago

6 0

Answer:

The scientific method has five basic steps, plus one feedback step:

1.Make an observation.

2.Ask a question.

3.Form a hypothesis, or testable explanation.

4.Make a prediction based on the hypothesis.

5.Test the prediction.

6.Iterate: use the results to make new hypotheses or predictions.

Explanation:

Anton [14]3 years ago

4 0

The scientific method has five basic steps, plus one feedback step:

Make an observation.

Ask a question.

Form a hypothesis, or testable explanation.

Make a prediction based on the hypothesis.

Test the prediction.

Iterate: use the results to make new hypotheses or predictions.

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A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block weighs 1587 g. From thisinformation, calculate the de

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3 years ago

A sample of a gas has a volume if 852mL at 288K. What temperature did s necessary for the gas to have a volume of 945mL?

asambeis [7]

Answer:

The answer to your question is T2 = 319.4°K

Explanation:

Data

Volume 1 = V1 = 852 ml

Temperature 1 = T1 = 288°K

Volume 2 = V2 = 945 ml

Temperature 2 = T2 = ?

Process

To solve this problem, use Charles' law.

V1/T1 = V2/T2

-Solve for T2

T2 = V2T1/V1

-Substitution

T2 = (945 x 288) / 852

-Simplification

T2 = 272160 / 852

-Result

T2 = 319.4°K

6 0

4 years ago

Chemical energy is a form of A. kinetic energy only. B. both potential and kinetic energy. C. neither potential nor kinetic ener

svetlana [45]

wrong. If its for the study island its potential energy only.

6 0

3 years ago

The Al2O3 crystal structure (corundum) consists of an HCP arrangement of O2- ions; the Al3+ ions occupy octahedral positions. Wh

vesna_86 [32]

Answer:

The fraction of the available octahedral positions are filled with $Al^{3+}$ ions is $\frac{2}{3}$

Explanation:

If there are n numbers of spheres in HCP in packing:

Number of octahedral void = n

Number of tetrahedral void = 2n

Total number of voids = n + 2n = 3n

The $Al_2O_3$ crystal structure consists of an HCP arrangement of $O^{2-}$ ions.

Number of spheres in HCP = 6

Number of $O^{2-}$ = 6

Number of octahedral voids = 6

Number of tetrahedral void = 12

Number of aluminum ions when there are 6 $O^{2-}$ ion = $\frac{2}{3}\times 6= 4$

Number of voids in which $Al^3+$ ions are present = 4

The fraction of the available octahedral positions are filled with $Al^{3+}$ ions = $\frac{4}{6}=\frac{2}{3}$

5 0

4 years ago

‘ASAP’What do the different categories of hurricanes represent?

Alex17521 [72]

Answer:

Sorry I do not know the answer but I do know its not c (pressure)

Explanation:

I took a quiz with that question and I got it wrong my other guess is air density though

5 0

4 years ago