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svet-max [94.6K]
3 years ago
9

Scientific knowledge can withstand the test of time because A. exceptions can be made regarding scientific laws. B. it is open t

o change as new evidence or data is discovered. C. scientific theories have been proven beyond doubt. D. advancements in technology have no impact on science.
Chemistry
2 answers:
Iteru [2.4K]3 years ago
5 0

B. It is open to change as new evidence or data is discovered. If scientists discover new evidence, they must modify their theories to conform with the new data.

A. is <em>incorrect</em>. Scientific laws are so well established that there can be no exceptions.

C. is <em>incorrect</em>. A scientific theory is the collective judgement of scientists as to the best explanation for a phenomenon. A new observation may require modification of the theory.

D. is <em>incorrect</em>. Advancements in technology can provide new evidence that requires new explanations.

DochEvi [55]3 years ago
5 0

THE ANSWER IS

it is open to change as new evidence or data is discovered.

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Lonization Energy decreases as you go down a family (group or column). Explain why this pattern
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Answer:

Explanation:

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2 years ago
A gas occupies a volume of 67.54 liters at 158°C and 4.87 atm pressure. Calculate the number of moles of this gas.
Katarina [22]

Answer:

The number of moles of the gas is 9.295 moles or 9.30 moles

Explanation:

We use PV = nRT

Where P = 4.87 atm;

V = 67.54 L

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T = 158 C = 158 +273 K = 431 K

the number of moles can be obtained by substituting the values in the respective columns and solve for n

n = PV / RT

n = 4.87 * 67.54 / 0.0821 * 431

n = 328.9198 / 35.3851

n = 9.295moles

The number of moles is approximately 9.30moles.

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Explain why copper is used for the<br> roofs of some buildings and magnesium is not.
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Because of the less reactivity of copper.

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