Answer:
physical change; chemical change ; chemical property
Because they aren’t sustainable and they contribute to global warming, I think.
Answer: a ) NaCl
b) No compound.
Explanation:
Atomic number of A is 11 , thus it is sodium. It has electronic configuration of 2,8,1 and thus has 1 valence electron and can form .
Atomic number of B is 18 , thus it is argon. It has electronic configuration of 2,8,8 and thus it is an inert gas.
Atomic number of C is 1 , thus it is hydrogen. It has electronic configuration of 1. It can only share electrons.
Atomic number of D is 17 , thus it is chlorine. It has electronic configuration of 2,8,7 and thus has 7 valence electron and can form .
a) A and D :
Here Sodium is having an oxidation state of +1 called as cation and anion is . Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral
b) B and C
As B is an inert gas , it wont combine with C.
Answer:
0.628 mol·L⁻¹
Explanation:
The balanced equation is
H₂ + I₂ ⇌ 2I
₂
Data:
Kc = 53.3
[H₂] = 0.400 mol·L⁻¹
[I₂] = 0.400 mol·L⁻¹
1. Set up an ICE table.
2. Calculate the equilibrium concentrations
[HI] = 2x mol·L⁻¹ = 2 × 0.3140 mol·L⁻¹ = 0.628 mol·L⁻¹
Answer:
The correct answer -
a. Cd and Pb(NO3)2
b. Redox reactions
c. Pb and Cd(NO3)2
Explanation:
This is the reaction known as the redox or reduction-oxidation reaction of metals. In this particular reaction, there are two reactants Cadmium (III) in solid-state and lead (II) nitrate in the aqueous state. At the end of this reaction, the products that we get are lead (II) in solid-state and Cadmium (III) nitrate in the aqueous state.
cadmium (s)+ lead nitrate (aq) = lead (s) + cadmium nitrate (aq)
Cd (s) + Pb2+(aq) → Pb(s) + Cd2+(aq)
Here, Oxidizing agent is Pb2+ and the reducing agent is Cd.