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Margaret [11]
3 years ago
8

What is the percent composition of K2O?

Chemistry
2 answers:
AlladinOne [14]3 years ago
7 0
Element Symbol Mass Percent
Oxygen O 16.985%
Potassium K 83.015%
Strike441 [17]3 years ago
3 0
Oxygen O 16.985%
Potassium K 83.015%
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Balance the equation for magnasuin and oxygen to yield magnasuimoxide
Minchanka [31]

Answer:

2Mg + O₂  →  2MgO

Explanation:

Chemical equation:

Mg + O₂  →  MgO

Balanced chemical equation:

2Mg + O₂  →  2MgO

The balanced equation s given above and it completely follow the law of conservation of mass.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

Steps to balanced the equation:

Step 1:

Mg + O₂  →  MgO

Mg = 1         Mg = 1

O = 2           O = 1

Step 2:

2Mg + O₂  →  MgO

Mg = 2         Mg = 1

O = 2           O = 1

Step 3:

2Mg + O₂  →  2MgO

Mg = 2         Mg = 2

O = 2           O = 2

6 0
3 years ago
How are the products of the endoplasmic reticulum shipped to the golgi?
enot [183]
The ribosomes are the ones delivering the products of the endoplasmic reticulum
8 0
3 years ago
What groups are Cl and F in
Nikitich [7]

Answer:

Halogens

Explanation:

5 0
3 years ago
Read 2 more answers
Using the periodic table only, arrange the elements in each set in order of increasing EN:
madam [21]

Oxygen to sulfur is less polar than comparable bonds to oxygen because sulfur is less electronegative than oxygen.

In groups, electronegativity rises from bottom to top; across periods, it rises from left to right. In groups, electronegativity rises from bottom to top; across periods, it rises from left to right. Fluorine is the element with the greatest electronegative charge, whereas francium has a very low electronegative charge. Within a set of elements, electronegativity values drop from top to bottom. Moving from left to right along a period improves electronegativity. This is caused by a decrease in atomic size and a rise in nuclear charge, which allows a shared electron pair to be more attracted to one another.

Learn more about Electronegativity here-

brainly.com/question/17762711

#SPJ4

8 0
2 years ago
Oxygen-17 and oxygen-18 _____. have the same mass are isotopes of oxygen have different numbers of protons
NNADVOKAT [17]

 oxygen -17   and  oxygen-18 are  isotopes  of  oxygen


<em><u>Explanation</u></em>

Isotope is two or more forms   of the same element  that  has  equal  amount of proton but different  number of neutrons  in the nuclei.

oxygen -17 and oxygen-18  are  isotope    of oxygen since they  have the equal amount   of  protons but different   number of  neutrons  in their  nuclei.

that  is oxygen  17  has   8  protons  and  9  neutrons  while  oxygen 18  has  8 protons and  10  neutrons.


8 0
3 years ago
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