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Rasek [7]
3 years ago
12

Which of these terms describes the number of protons in the nucleus of an atom?

Chemistry
2 answers:
Leokris [45]3 years ago
6 0
Is it B................
salantis [7]3 years ago
6 0
I believe the correct answer is choice D. Atomic number.

hope this helps!
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What mass of sodium hydroxide is needed to neutralise 24.5kg of sulfuric acid <br> H2SO4 + N2 = 2NH3
sveticcg [70]

Answer:

23.92 g

Explanation:

Molar mass of H2SO4 = (2×1)+32+(16×4)= 2+32+48= 82g/mol

H2SO4 + 2NaOH ---> Na2SO4 + 2H2O

I mole of H2SO4 = 2 moles of NaOH

24.5/82 = 24.5/82 × 2

= 0.598 moles of NaOH will neutralize

Mass= mole× molar mass

Molar mass of NaOH= 23+16+1 = 40g/mol

Mass= 0.598 × 40 = 23.92g of NaOH

7 0
3 years ago
Identify each definition that applies to the compound in red. Check all that apply.
andre [41]

Answer:

Arrhenius acid & Bronsted-Lowry acid

Explanation:

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3 years ago
Write out the word equations for these reactions.<br> ) Hydrogen reacts with oxygen to form water.
ale4655 [162]

Answer:

H2O

Explanation:

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4 0
3 years ago
a- If an Lithium (atomic number 3) atom has a -2 charge, how many electrons does it have? b- Why do you do it this way? c- Is th
Darina [25.2K]

Answer:

5

Explanation:

A lithium atom with an atomic number of 3 and a charge of -2 will have a total number of electrons.

The atomic number is the number of protons in an atom. For a neutral atom that has not gained or lost electrons, the atomic number is the same as the number of electrons.

   neutral atom: atomic number of electrons

For neutral atom of lithium, we will have 3 electrons

Now, lithium with a charge of -2 has gained two more electrons to the original 3 this now makes it 5.

ii.

It is an anion because it is negatively charged.

Negatively charged particles are called anion.

6 0
3 years ago
Which is the physical property of ionic compounds in their solid state?
Inga [223]
They are hard solid with a crystal lattice structure... with high melting points
4 0
3 years ago
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