A.)Neutral. Since amount of protons and electron are equal and amount of protons cannot be changed so it is stable or neutral.
Answer:
Increased use of resources
Additional waste produced
More construction
Cutting down trees
Answer:
100ml of a stock 50% KNO3 solutions are needed to prepare 250ml of a 20% KNO3 solution.
Explanation:
In the given question it is mentioned that
S1=50%
V2=250ml
S2= 20%
We all know that
V1S1=V2S2
∴V1= V2×S2÷S1
∴V1= V2S2×1/S1
∴V1= 250×20÷50
∴V1= 100ml
Answer:
b option sir sidd dichhi good book goo
A: 12 N
B: 150 N
C: 100 N
D: 150 N
E: 220 N
