Answer:
First, balance the half-reactions
Second, equalize the electrons
Third,add two reaction equations to get final answer
Explanation:
For example
H₂C₂0₄ + MnO⁻₄ ---------->CO₂+Mn²⁺
(i) Balancing the half reactions
H₂C₂O₄-------->2CO₂+2H⁺+2e⁻
5e⁻ +8H⁺+MnO₄⁻----------->Mn²⁺+4H₂O
(ii)
Equalizing the electrons
5H₂C₂O₄--------->10CO₂+10H⁺+10e⁻ ---here there is a factor of 5
10e⁻+16H⁺+2MnO₄⁻--------->2Mn²⁺+8H₂O -----here there is a factor of 2
(iii)
Add the two where electrons and some Hydrogen ions will cancel out
5H₂C₂O₄+6H⁺+2MnO₄⁻---->10CO₂+2Mn²⁺+8H₂O
It is when two or more different substances which are mixed
Answer:
The answer is
<h2>0.784 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
<h3>

</h3>
From the question
mass of liquid = 9.8 g
volume = 12.5 mL
The density is

We have the final answer as
<h3>0.784 g/mL</h3>
Hope this helps you
Answer:
In molecular compound atoms are held together through covalent bond. It is formed between the non metals.
In ionic compounds positive and negative ions held together through electrostatic attraction. It is formed between metal and non metal.
Explanation:
Ionic compound:
In ionic compounds positive and negative ions held together through electrostatic attraction. It is formed between metal and non metal.
For example:
Sodium chloride is ionic compound. Te sodium metal lose it electron and this electron is accept by the chlorine atom. Sodium became positive ion while chlorine became negative ion. The forces develop between them are electrostatic forces.
Molecular compound:
In molecular compound atoms are held together through covalent bond. It is formed between the non metals.
For example:
Carbon dioxide is molecular compound. It is made up of carbon and oxygen atoms. Both atoms share the electrons with each other and form two double bond O=C=O.