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slavikrds [6]
4 years ago
10

10 pts!!!

Chemistry
1 answer:
Nata [24]4 years ago
8 0
A.mixture I think .............
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What is the main difference between sexual and asexual reproduction
andreyandreev [35.5K]

Answer:

Asexual reproduction does not involve sex cells or fertilisation . Only one parent is required, unlike sexual reproduction which needs two parents. Since there is only one parent, there is no fusion of gametes and no mixing of genetic information.

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When there is an increase in temperature of a gas in an
Ahat [919]

Answer:increase In kinetic energy of molecules

Explanation:increase in kinetic energy of molecules

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How to solve a balanced equation
geniusboy [140]

Explanation:

To balance a chemical equation, there are so many approaches to solve the problem.

A balanced chemical equation is one that obeys the law of conservation of matter.

According to this law "matter is neither created nor destroyed by atoms are just rearranged in chemical reaction".

This implies implies that equal number of atoms must be on both sides of the equation.

      There are two main approaches to balancing chemical equation;

  • Inspection
  • mathematical equation

We can inspect the equation and affix the proper coefficients to combining species.

Mathematically, we establish simple solvable algebraic equations to find the number of respective coefficients that will balance the equation:

 For example:

          H₂     +      O₂    →     H₂O

mathematically;

           aH₂     +      bO₂    →     cH₂O

  conserving:

         H :   2a  =  2c

         O:    2b  = c

 let a = 1

      c = 1

      b = \frac{1}{2}

multiply by 2 to give;

   a = 2, b = 1 , c= 2

               2H₂     +      O₂    →     2H₂O

learn more:

Balanced equation brainly.com/question/9325293

#learnwithBrainly

 

7 0
3 years ago
Give the symbol for the atom that corresponds to each electron configuration:
stepan [7]

Answer:

Na

N

Si

O

K

Ti

Explanation:

To know what symbol corresponds to the electron configurations, we just have to count the number of electrons.

⇒1s² 2s² 2p6 3s1

This means there are 2 electrons on the first shell

8 electrons on the second shell

and 1 electron on the third shell

in total there are 11 electrons ⇒ this means the atom number is 11

If we look at the periodic table to atom number 11 we'll see that this is Sodium (Na).

⇒ 1s² 2s² 2p³

This means there are 2 electrons on the first shell

and 5 electrons on the second shell

So 7 electrons in total ⇒ this means the atom has atom number 7

⇒Nitrogen (N)

⇒ 1s² 2s² 2p6 3s² 3p²

This means there are 2 electrons on the first shell

There are 8 electrons on the second shell

There are 4 electrons on the third shell

So there are 14 electrons in total ⇒ atom number 14

⇒Silicon (Si)

⇒1s² 2s² 2p4

This means there are 2 electrons on the first shell

There are 6 electrons on the second shell

8 electrons in total ⇒ atom number = 8

⇒Oxygen (O)

⇒ 1s² 2s² 2p6 3s² 3p6 4s1

This means there are 2 electrons on the first shell

There are 8 electrons on the second shell

There are 8 electrons on the third shell

There is 1 electron on the fourth shell

This means there are 19 electrons in total ⇒ atom number 19

⇒Potassium (K)

⇒ 1s² 2s² 2p6 3s² 3p6 3d² 4s²

This means that 2 electrons on the first shell

There are 8 electrons on the second shell

There are 10 electrons on the third shell

there are 2 electrons on the fourth shell

There are 22 electrons in total ⇒ atom number 22

⇒ Titanium (Ti)

4 0
3 years ago
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