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Lubov Fominskaja [6]
3 years ago
12

What are rules of brainly?

Chemistry
2 answers:
exis [7]3 years ago
7 0

Answer:

<h3>answer rules<u>:</u></h3>

-BA

-no copas

-does not violate user terms

-correct wrong answers before people report it

-words are not random

<h3>the rule of asking questions:</h3>

-does not violate user terms

-questions that will give the proper answer

-words are not random

-write questions and choose the right subject

a perfect ranking in a user brainly is a minimum expert rank of 200 points

OLga [1]3 years ago
3 0

Explanation:

hope this will help you.

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Name any two artificial elements.​
romanna [79]

Answer:

1) Hydrogen and Helium

I hope it will help you

6 0
2 years ago
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Any one from Michigan on here????
Andrew [12]

Answer:

dont go to any taco bells in Michigan!! There have been numerous cases of Ligma that have been traced back to Taco Bells across Michigan

Explanation:

7 0
2 years ago
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Help plzzzzz ASAP!!!!!!!!
SIZIF [17.4K]

1. NaF, Na₂S, Na₃P, Na₂O

2. MgF₂, MgS, Mg₃P₂, MgO

3. AlF₃, Al₂S₃, AlP, Al₂O₃

<h3>Further explanation</h3>

Given

Ionic charge

Required

The formula of binary ionic compounds

Solution

Ionic compounds consisting of cations (ions +) and anions (ions -)

Ionic compounds usually consist of metal cations and non-metal anions

Metal: cation, positively charged.

Nonmetal: negatively charged

The anion cation's charge is crossed

The ionic compounds :

1. NaF, Na₂S, Na₃P, Na₂O

2. MgF₂, MgS, Mg₃P₂, MgO

3. AlF₃, Al₂S₃, AlP, Al₂O₃

4 0
3 years ago
What happens when cells are exposed to radioactivity?
Step2247 [10]

Answer:

when cell is exposed to radiation we get brain tumour or cancer.

6 0
3 years ago
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The heat of vaporization of a liquid is 84.0 J/g. How many joules of heat would it take to completely vaporize 172 g of this liq
Aliun [14]

Answer:

14,448 J of heat would it take to completely vaporize 172 g of this liquid at its boiling point.

Explanation:

The heat Q that is necessary to provide for a mass m of a certain substance to change phase is equal to Q = m*L, where L is called the latent heat of the substance and depends on the type of phase change.

During the evaporation process, a substance goes from a liquid to a gaseous state and needs to absorb a certain amount of heat from its immediate surroundings, which results in its cooling. The heat absorbed is called the heat of vaporization.

So, it is called "heat of vaporization", the energy required to change 1 gram of substance from a liquid state to a gaseous state at the boiling point.

In this case, being:

  • Q=?
  • m= 172 g
  • L= 84 \frac{J}{g}

and replacing in the expression Q = m*L you get:

Q=172 g*84 \frac{J}{g}

Q=14,448 J

<u><em>14,448 J of heat would it take to completely vaporize 172 g of this liquid at its boiling point.</em></u>

5 0
3 years ago
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