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Natalija [7]
3 years ago
8

Which question can be answered using the scientific method ?

Chemistry
1 answer:
anyanavicka [17]3 years ago
8 0
The correct answer is D because the the rest will have different answers depending on the person you ask. D can be proven with facts by research
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Which of the following characterizes an ionic bond?
velikii [3]

Answer:

option A

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2 years ago
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Why are some examples of a chemical reaction not actually foolproof evidence that of a chemical reaction?13, 8th grade, and I'm
kvasek [131]
So basically, the change in color effects the amount of cations in the solution making it a physical change rather than a chemical one, defying the law of conservation of mass! I hope this helped! (The only time the change in color affects the amount of cations is in the Alkaline Earth Metals)

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3 years ago
Chlorine reacts with sodium and with hydrogen.
Sonbull [250]

Answer:

Sodium Chloride has Ionic bond while Hydrogen Chloride has covalent bond.

Explanation:

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Na transfers 1 electron to CL to form Ionic bond.

While

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3 years ago
Adding luminol to water creates a physical or chemical change ​
faust18 [17]
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3 years ago
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Given any two elements within a group, is the element with the larger atomic number likely to have a larger or smaller atomic ra
zhenek [66]

Answer:

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Atomic radius of potassium = 280 pm

Explanation:

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As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

Consider the example of sodium and potassium.

Sodium is present above the potassium with in same group i.e, group one.

The atomic number of sodium is 11 and potassium 19.

So potassium will have larger atomic radius as compared to sodium.

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Atomic radius of potassium = 280 pm

3 0
3 years ago
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