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Sergeu [11.5K]
3 years ago
12

What are valency and radicals

Chemistry
1 answer:
PolarNik [594]3 years ago
6 0
Valency- it means the combing capacity if an element.
<span> radical- it  is an atom, molecule, or ion that has unpaired valence electrons or an open electron shell.
</span>
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Which describes an atom that has fewer nuetrons than protons and more electtrons than protons?
lidiya [134]
An atom that has fewer neurons than protons and more electrons than protons is an ANION
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3 years ago
Any two difference between short sightedness and long sightednes​
SSSSS [86.1K]

Explanation:

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Äni Arko MA it is also called hypermetropia .

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3 years ago
How many moles of O are in 2.45 moles of H2CO3?​
Irina-Kira [14]

Answer:

7.35 moles of oxygen

Explanation:

First of all, for 1 mole of H₂CO₃ we have 3 moles of oxygen (can be deduced from the chemical formula of the acid), then the moles of oxygen in 2.45 mole of the compound, which are given in the question, from the carbonic acid will be:  

If in        1 mole of H₂CO₃ we have 3 moles of oxygen

The in    2.45 moles of H₂CO₃ we have X moles of oxygen

X = ( 3 × 2.45 ) / 1 = 7.35 moles of oxygen

3 0
3 years ago
How are mass and gravitational pull related? in your own words
katrin [286]

Answer:

they are not realted at all

Explanation:

5 0
4 years ago
Which gas law (choices are Charles' Law, Gay-Lussac's Law, or Boyle's Law) explains each scenario:
Sedaia [141]

Explanation:

Air bags help lessen injuries in an automobile crash is application of Boyle's law:

Boyle's law states that at constant temperature, the volume of given mass of a gas is directly proportional to the pressure changes.

According to this law, the volume of the air bag will increase. The bag will become bigger as a result of decrease in the gas pressure in the bag.

The bag was packed with gases under high pressure and their volume decreases appreciably. After a collision, pressure reduces and the gas expands.

helium balloon decreases in size when you put it into a freezer

A can of spray paint will explode if tossed into a fire

Both are application of Charles's law:

 According to this law "the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant".

The helium balloon decreases in size because the temperature is lowered. The particles will keep tending towards a state of rest.

A can spray paint explodes because the gas in it will keep expanding as the temperature increases in a fire.

learn more:

Charles's law brainly.com/question/7316997

#learnwithBrainly

6 0
3 years ago
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