Answer : In the reaction of Ca +
--->Ca
, the coefficient of Ca and
will be the same which will be 1.
Explanation : As per the rules of writing a chemical equation and balancing it properly, the number of elements in reactants side should be equal to the number of elements generated in product side. Hence when we use 1 molecule of Ca and one molecule of
then it generates 1 molecule of Ca
.
<span>Magnesium is a strong anode than calcium. So, Mg will be oxidized into Mg2+. So instead of having Ca being the reducing agent, Mg will takes its place. That's how the "Blocking" occur.
</span><span>Without Ca2+, no neurotransmitter was released because the exocytosis of the synaptic vesicles is dependent upon Ca2+.
</span>So, when magnesium is added to the extracellular fluid it blocks the calcium channels and inhibits the release of <span>neurotransmitter.</span>
Explanation:
There are quite a number of ways to increase the solubility of substances.
Solution is a homogeneous mixture formed by dissolving a solute in a solvent.
Here are some things that can increase the rate of dissolution;
- Grinding/pulverizing - helps to increase the surface area for the solvent to react.
- Stirring - to bring more solvent in contact with the solute intimately.
- Heating - to facilitate dissolution of solute in solvents.
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Molarity
a. Na2CO3
Molar mass = 106 g/mol
n= 109 g / (106 g/mol) = 1.028 mol
b. 6.00L
c. M=n/V
M = 1.028 mol / 6.00 L
M= 0.1713 mol / L
Answer: The molarity of the sodium carbonate solution is 0.1713 mol/L
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