37. Write a balanced equation for this:
Magnesium + Chlorine ---> Magnesium Chloride
40. How many torr equal 760 mm Hg?
Please explain how to do these. Thanks
-MC
..760 torr?
-MC
37. To write a balanced equation, you need to ensure that both sides of the equation have the same number of atoms for each element. Here's how you can balance the equation for the reaction of Magnesium (Mg) with Chlorine (Cl) to form Magnesium Chloride (MgCl2):
Step 1: Write the chemical formula for each compound involved in the reaction.
- Magnesium: Mg
- Chlorine: Cl2 (since chlorine exists as a diatomic molecule)
- Magnesium Chloride: MgCl2
Step 2: Count the number of atoms for each element on each side of the equation.
- On the reactant side (left side): 1 Mg atom, 2 Cl atoms
- On the product side (right side): 1 Mg atom, 2 Cl atoms
Step 3: To balance the equation, adjust the coefficients in front of each compound until the number of atoms for each element is the same on both sides.
- The balanced equation for the reaction would be:
Mg + Cl2 -> MgCl2
This equation indicates that one magnesium atom reacts with one chlorine molecule to form one magnesium chloride molecule.
40. To convert torr to mm Hg, you need to know that both units measure atmospheric pressure. Here's what you can do:
1 torr is equal to 1 mm Hg. Therefore, to convert torr to mm Hg, simply use the same numerical value.
In the case of the question "How many torr equal 760 mm Hg?", you can directly answer that 760 torr is equal to 760 mm Hg.
Convert words to symbols for the equation. Remember that H2, N2, O2, F2, Cl2, Br2, I2 are diatomic.
Mg + Cl2 ==> MgCl2
40. 1 torr = 1 mm Hg so 760 mm Hg = ?? torr?