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Serjik [45]
3 years ago
6

Solid carbon (C) can burn in oxygen (O2). Select

Chemistry
2 answers:
lilavasa [31]3 years ago
6 0

Answer:

             The complete chemical equation is as;

                                          C + O₂   →   CO₂

Explanation:

                    According to <em>law of mass conservatio</em>n the mass in isolated system can neither be created nor be destroyed. Applying this law to given <u>synthesis reaction</u> means that,

               (i) If there is one carbon atom on left hand side of the equation (reactant side) then there must be on e carbon on right hand side (product side) of the equation.

                (ii) If there are two oxygen atoms on left hand side of the equation (reactant side) then there must be two oxygen atoms on right hand side (product side) of the equation.

Hence, from equation it is proved that it obeys the said law and the number of atoms on both side are equal i.e.

                           Reactant Side                     Product Side

Carbon                          1                                          1

Oxygen                          2                                         2

allsm [11]3 years ago
6 0

Answer:

CO2

Explanation:

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A calcium atom has 20 protons!

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3 years ago
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slava [35]
The  change  in  internal   energy  of the   combustion  of  biphenyl  in  Kj  is  calculated  as follows

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What elements can join wit other elements o form a covalent bond
Bas_tet [7]

Answer:

Non metals join to form covalent bond.

Explanation:

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.  

The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive.

For example:

In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial positive.

Both atoms bonded through covalent bond.

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