To balance chemical equations, first determine how many of each are on each side.
MgCl2 + AgNO3 = Mg(NO3)2 + AgCl
1 Mg 1 Mg
2 Cl 1 Cl
1 Ag 1 Ag
1 NO3 2 NO3
Next, we have to get the amounts of elements to equal each other on both sides.
Since there are 2 Cl on the left side and 1 Cl on the right, I'm going to multiply the part on the right that has Cl by 2.
MgCl2 + AgNO3 = Mg(NO3)2 + 2AgCl
1 Mg 1 Mg
2 Cl 2 Cl
1 Ag 2 Ag
1 NO3 2 NO3
We are still unbalanced, since there are more Ag and NO3 on the right than the left. To get them to equal each other, I'm going to multiply the part with the Ag and NO3 on the left by 2.
MgCl2 + 2AgNO3 = Mg(NO3)2 + 2AgCl
1 Mg 1 Mg
2 Cl 2 Cl
2 Ag 2 Ag
2 NO3 2 NO3
Now the equation is balanced!
This is the website I often use to double check to make sure I've balanced correctly: http://www.webqc.org/balance.php
Answer:
Molarity is moles per liter. You have one mole in 0.750 liters
Explanation:
Argon is the third most common gas found in the air we breathe. The air we breathe has approximately 78% nitrogen and 21 % oxygen. The third more abundant gas in the air we breathe is Argon. It is available in a very small quantity in the air that we breathe.
The percentage of the gas argon is about 0.9% in the air
that we breathe. There are several other gases also present in the air that we
breathe, but they are found mostly in negligible amounts.
Answer:
Ka2 values should be used in obtaining pKa2 in the Henderson–Hasselbalch equation
Explanation:
During first dissociation from H3PO4 to H2PO4-, ka1 will be used, and from H2PO4-to HPO4-, ka2 values will be used, hence a buffer solution containing H2PO4-and HPO4-will use ka2 in obtaining pKa2 in the Henderson–Hasselbalch equation.
It take more energy to break the bonds of the reactants and less energy is given off when the product bonds are formed.
<h3>What is Energy?</h3>
Energy is defined as the ability to do work. Work is done in the breaking or formation of bonds.
The standard Enthalpy (ΔH) of water which was formed in the given reaction is negative.
ΔH= Δproduct - Δreactant
This means that the energy to break the bonds of the reactants is more.
Read more about Enthalpy here brainly.com/question/14291557
