The ionization of the following acids and bases can be expressed as follows :
(A ) HI + water →← H + (aq) + I -(aq)
(B) KOH + H2O →← K+(aq) + OH- (aq)
(C)HNO2(l) + H2O →← H+(aq) +NO2-(aq)
(D)H2PO4- + H2O →← H + (aq) + HPO4 ^2- (aq)
(E)CHNH2 + H2O→← CH3NH3+(aq) + OH-(aq)
(F)CH3CH2COOH +H2O→←CH3CH2COO-(aq) + H3O+(aq)
Answer:
B. Aluminum is a good conductor of heat
Explanation:
Physical properties are usually those that can be observed using our senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor. The Physical Properties of Aluminum are as follows: Color : Silvery-white with a bluish tint.
Answer:the parts of the body which is nearest to the ground ie thier back will show discoloration
Explanation:
If the body remains at a position for long hours, the parts of the body which is nearest to the ground can develop a skin discoloration as a result of pooling of blood in the tissues and this is called livor mortis, which tends to be permanent from 8Hours upwards.
Answer:
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Explanation:
<u>1. Calculate the number of moles of NiCl₂</u>
a) Identify the known variables
- V =0.800 liters
- M = 0.531M
- n = ?
b) Formula
c) Clear n
<u>g) Substitute and compute</u>
<u>2. Convert moles to grams</u>
a) molar mass of NiCl₂
- 129g/mol (shown in the problem)
b) Unit canceling method
Use the factors in order to cancel the units to obtain grams
Note that the mol unit appears on the numerator and denominator, so it cancels leaving just g (grams).
c) Round to 3 signficant figures
I would go with C hope this helps
