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Setler [38]
3 years ago
12

Which of the following always changes when a substance undergoes a chemical change?

Chemistry
2 answers:
vovangra [49]3 years ago
6 0

Answer:

A. State of matter of the substance.

Explanation:

During a chemical change, the composition of matter always changes.

amm18123 years ago
6 0

Answer:

I would say C.

Explanation:

My best bet is C but in all honesty, i have no clue. -hope my non-helping helped :D

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The main criterion for sigma bond formation is that the two bonded atoms have valence orbitals with lobes that point directly at
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Answer:

The given statement - The main criterion for sigma bond formation is that the two bonded atoms have valence orbitals with lobes that point directly at each other along the line between the two nuclei , is <u>True.</u>

Explanation:

The above statement is correct , because the sigma bond is produced by the head on overlapping, the orbitals should all point in the same direction.

<u>SIGMA BONDS -</u> Sigma bonds (bonds) are the strongest type of covalent chemical bond in chemistry. They're made up of atomic orbitals that collide head-on. For diatomic molecules, sigma bonding is best characterized using the language and tools of symmetry groups.

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3 years ago
Which of the following is NOT a property of metals?
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C - can be solids, liquids, or gases

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