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ivolga24 [154]
3 years ago
11

What is an substance

Chemistry
2 answers:
lora16 [44]3 years ago
8 0
<span>a particular kind of matter with uniform properties.

</span>
andrey2020 [161]3 years ago
6 0
It's A particular kind of matter with uniform properties or it can be <span>the real physical matter of which a person or thing consists and which has a tangible, solid presence.

Hope this Helped!</span>
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After the child exhaled all of the gas, it becomes sick
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Firewood burns and ashes remain<br><br> is it a chemical or physical change?
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With what compound will nh3 experience only dispersion intermolecular forces? with what compound will nh3 experience only disper
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Consider the Fischer ester synthesis of methyl benzoate from benzoic acid and methanol in the presence of sulfuric acid as a cat
zlopas [31]

Answer:

48.8%

Explanation:

The reaction has a 1:1 mole ratio so;

Number of moles of benzoic acid reacted = mass/molar mass = 3.8 g/122.12 g/mol = 0.03 moles

So;

0.03 moles of methyl benzoate is formed in the reaction

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4 0
3 years ago
Magnesium chloride is a salt formed with ionic bonds between one magnesium ion and two chloride ions. Magnesium has two electron
katrin [286]

Answer:

The magnesium atom loses 2 electron to the 2 atoms of chlorine. The 7 valency electrons of each chlorine atom will now be 8 to attain stable configuration. The final compound is written as MgCl2.

Explanation:

Ionic compounds are compound formed from the transfer of electron(s). One atom of the element loses electron(s) while the other atom gains electron(s).

The compound Magnesium chloride is an ionic compound . The bond between an atom of magnesium and 2 atoms of chlorine is an ionic bonding.

The valency electron of magnesium is 2 electron , for the atom of magnesium to  attain octet rule, it will easily lose it 2 electrons to the chlorine atoms.

The chlorine atom on the other hand has 7 valency electrons, to attain octet configuration it will most likely gain 1 electron to become stable.

The magnesium atom loses 2 electron to the 2 atoms of chlorine. The 7 valency electrons of each chlorine atom will now be 8 to attain stable configuration. The final compound is written as MgCl2.

7 0
3 years ago
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