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
Number of valence electrons.
This is because an elements valence electrons determine its bonding and all the rest of its properties. All elements in a group will have similar properties because they all have the same number of valence electrons, aka group number.
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X= 101.325 kPa
The absolute pressure of the air in the balloon is 101.325 kilopascals.
Answer:
Explanation:
Hello,
In this case, the undergoing chemical reaction is shown below:
Thus, we obtain 0.0471 g of lead (II) sulfate, the iodide ions in the original solution are computed below by stoichiometry, taking into account that into 1 mole of lead (II) iodide there are 2 moles of iodide ions:
Best regards.
Heat from the Sun causes water to evaporate from the surface of lakes and oceans. This turns the liquid water into water vapor in the atmosphere. Plants, too, help water get into the atmosphere through a process called transpiration