The 5 branches are organic, inorganic, biochemistry, analytical, and physical. There are different branches because they each apply to different parts of chemistry. For example organic chemistry is the study of carbon compounds and inorganic chemistry is the study of non carbon compounds. You can't just have one type of chemistry because these are very different.
Answer: theo mình thì mình làm như sau
cu(no3)2 nhiệt phân hết
\Rightarrow nNO2= 0,02mol
nO2=0,005mol
khi hấp thụ O2 và NO2 vào nước ta có
2NO2 + 1/2 O2\Rightarrow 2HNO3
phản ứng là vừa đủ nên
nHNo3= 0,02 mol
pH HNO3=2
khi cho 0,001mol NaOH vào thì phản ứng trung hòa
H+ + OH- \Rightarrow H20
nHNO3=0,02/20=0,001
nhận thấy nH+ =nOH- nên phản ứng vừa đủ
pH của dd Y=7
theo mình giải là như vậy
Explanation:
<h3>
Answer:</h3>
The conservation of mass and matter is true
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Explanation:</h3>
- The law of conservation of mass requires that the mass of reactants and products be equal in chemical reactions.
Given the equation;
AgNO₃ + HCI → AgCI + HNO₃
- The equation is balanced because, it has 1 silver atom, 1 nitrogen, 3 oxygen atoms, 1 hydrogen atom, and 1 chloride atom on both side of the equation.
- Therefore, the mass of the reactants and the products is equal which makes the law of conservation of mass hold.
- The conservation of matter is also true since the reaction process without changing the number of atoms of each element.
Its 2-chlorobutanal
hope that helps