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3 years ago

Matter is the substance that we can see and observe. True False

1 answer:

3 0

I'd say true.
Matter is a physical substance that occupies space.
Lets say you put random stuff in a box. That stuff is matter, filling the box.
Its common to say that matter is everything around you. You can see everything around you (almost).

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Mrs. Rushing fills a balloon with hydrogen gas to demonstrate its ability to burn. Which combination could she

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Explanation:

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JWhat type of evidence is gathering information through your senses or using scientific tools?

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Observations etc etc

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3 years ago

2. Which energy source is considered a non-renewable resource?

Keith_Richards [23]

Answer:

The answer is D

Explanation:

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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

dmitriy555 [2]

Answer:

See explanation.

Explanation:

Hello!

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

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

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3 years ago

The element with 8 electrons in its 3d sublevel is<br> a. O.<br> b. Ne.<br> c. Ar.<br> d. Ni.

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