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3 years ago

Is the equation Ag2O ----> Ag+ O2 balanced

Chemistry

2 answers:

maw [93]3 years ago

4 0

Ok so simple 1Ag2O ---> 1Ag+1O2 do u understand how I got that????

natita [175]3 years ago

3 0

This is a decomposition reaction.
Silver has a charge of plus one, and oxygen has a charge of minus two. So this equation is not balanced.
The first part is right. The two should be a subscript. The second part is not right and you should add the 2 to the Silver instead of the oxygen.

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Orbitals which valence electrons are found for calcium

galina1969 [7]

The 4th energy level (row), 's' orbital block, 2nd group (column). The valence electrons are found in the highest energy level of the electron configuration in the 's' and 'p' orbitals. In the case of calcium this is 4s2 . This gives calcium an 's' orbital with a pair of electrons in its valence shell

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3 years ago

Classify the following items based on the type of polymer they are made from: raincoats and leather shoes.

Karolina [17]

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2 years ago

Which is the electron configuration for bromine? 1s22s22p63s23p64s23d104p5 1s22s22p63s23p64s23d104p6 1s22s22p63s23p44s23d104p5 1

Svetach [21]

Answer : The correct option is, $1s^22s^22p^63s^23p^64s^23d^{10}4p^5$

Explanation :

The given element bromine belongs to the group 17 and period 4. The symbol of bromine is, Br.

The atomic number of bromine = 35

The total number of electrons present in bromine element = 35

Electronic configuration : It is defined as the arrangement of electrons around the nucleus of an atom.

Hence, the correct electronic configuration of bromine is,

$1s^22s^22p^63s^23p^64s^23d^{10}4p^5$

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3 years ago

Read 2 more answers

If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes it is called a

vladimir1956 [14]

Answer:

Physical change

Explanation:

Physical change -

It is the type of reversible change , where there is change in the state of the matter , is referred to as a physical change .

There is no chemical process involved during state change , i.e. , no new substance is formed .

Hence , from the given statement of the question, the correct term is physical change.

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2 years ago

Sodium bicarbonate is sometimes used to neutralize acid spills. If 2.0 L of 1.0 M H2SO4 is spilled, what mass of sodium bicarbon

UkoKoshka [18]

Answer:

168.0 g

Explanation:

First thing, write a balanced chemical equation:

$H_{2}SO_{4}+ 2NaHCO_{3} ----> Na_{2}SO_{4} + 2H_{2}O+2CO_{2}$

n(H2SO4) = concentration * volume

= 1.0 M * 2.0 L

= 2.0 mol

According to the balanced equation, 1 mol of acid requires 2 mol of sodium bicarbonate. This means that 2 mol of acid requires 2 mol of sodium bicarbonate. What mass of sodium bicarbonate is this?

mass (NaHCO3) = number of moles * molar mass

= 2.0 mol * 84.0065 g/mol

= 168.0 g

4 0

3 years ago