3 years ago

Which electron configuration represents the element carbon (atomic number 6)?

Chemistry

1 answer:

trapecia [35]3 years ago

5 0

1s2 2s2 2p2 i hope this helps

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Which of the following statements is true? Atoms of isotopes of an element have different numbers of electrons. Atoms of isotope

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Answer:

atoms of isotopes of an element have different numbers of neutrons.

Explanation:

isotopes have the same number of protons, but different numbers of neutrons.

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The reaction of perchloric acid (HClO4) with lithium hydroxide (LiOH) is described by the equation: HClO4 + LiOH → LiClO4 + H2O

dem82 [27]

Answer:

A. 0.35 M

Explanation:

Hello,

In this case, given the volume and concentration of lithium hydroxide and the volume of chloric acid, we can compute the concentration of the neutralized acid by using the following equation:

$n_{acid}=n_{base}\\\\V_{acid}M_{acid}=V_{base}M_{base}\\\\M_{acid}=\frac{V_{base}M_{base}}{V_{acid}} =\frac{46.9mL*0.75M}{100mL}\\ \\M_{acid}=0.35M$

Therefore, answer is A. 0.35 M.

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What does the atmoic weight 1 in hydrogen tell scientists

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The atomic number is equal to the number of protons in an atom's nucleus. Hydrogen's atomic number is 1 because all hydrogen atoms contain exactly one proton.

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Can someone help me answer these ?

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Why does knowing the mass of an object not help you identify what material the object is made from?

jeka57 [31]

Because mass is not always the same for objects made from the same material. Just because an object has the same mass as another doesn’t mean they are the same material.

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