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3 years ago

Using the correct number of significant figures 52.733 multiplied by 48.21

Chemistry

1 answer:

Romashka-Z-Leto [24]3 years ago

4 0

Answer:

2542

Rule for multiplying Significant Figures:

The product is limited to the number of sig figs equal to the least number of sig figs in the problem

Explanation:

52.733 has 5 significant figures and 48.21 has 4 significant figures. Therefore, the answer given must have 4 significant figures.

52.733(48.21) = 2542.25793

This answer round to have 4 significant figures is 2542.

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Which can lead scientists to change a theory that has already been accepted? Check all that apply. changes to scientific laws ne

Romashka-Z-Leto [24]

Answer:

New experimental methods

Technological inventions

Explanation:

A scientific theory is usually not based on speculation. Scientific theories must have a solid empirical basis.

However, experimental methods are limited to the caliber of equipments available at the time in which a theory is formulated. With advancing years, more technological sophistication leads to the invention of new instruments and ultimately, the development of new experimental methods.

These innovations are likely to alter existing scientific theories as new evidences emerge, hence the answer.

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Suppose that X represents an arbitrary cation and that Y represents an anionic species. Using the charges indicated in the super

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Answer:

See explanation.

Explanation:

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In this case, when having the cationic and anionic species with the specified charges, in order to abide by the net charge rule, we need to exchange the charges in the form of subscripts and without the sign, just as shown below: $X^{m+}Y^{n-}\rightarrow X_nY_m$

Thus, for all the given combinations, we obtain:

- Y⁻

$X^+Y^-\rightarrow XY\\\\X^{2+}Y^-\rightarrow XY_2\\\\X^{3+}Y^-\rightarrow XY_3$

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$X^+Y^{2-}\rightarrow X_2Y\\\\X^{2+}Y^{2-}\rightarrow X_2Y_2\rightarrow XY\\\\X^{3+}Y^{2-}\rightarrow X_2Y_3$

- Y³⁻

$X^+Y^{3-}\rightarrow X_3Y\\\\X^{2+}Y^{3-}\rightarrow X_3Y_2 \\\\X^{3+}Y^{3-}\rightarrow X_3Y_3\rightarrow XY$

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2 years ago

Apart from carbon dioxide what is the other product of family decomposition of calcium carbonate

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Answer:

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3 years ago

A woman has pain in her ovaries. In which

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Answer:

The right lower quadrant

The left lower quadrant

Explanation:

Those quadrants contain the ovaries and I just got it correct on the assignment.

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2 years ago

Why can pure metals conduct electricity?

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Answer:

they have delocolised electrons which can carry electrical charges through the metals.

Explanation:

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