What are the coefficients when the equation below is balanced?___ CH4 + ___ O2 = ___ CO2 + ___ H2O1,2,3,41,3,4,12,2,1,21,2,1,2
1 answer:
To balance a chemical equation we need to make sure that the number of atoms of each element before and after the reaction occurs is the same.
In this case, we're asked to balance the equation:
As you can see, to balance Hydrogen we could multiply the coefficient of the products where Hydrogen is, by 2. Then, counting again:
Finally, we need to balance oxygen. For this, we could multiply the coefficient of O2 by 2 so we can have the same number of Oxygen atoms before and after the reaction occurs. Therefore, the balanced reaction is:
And, the coefficients when the equation is balanced, are:
__1_ CH4 + _2__ O2 = __1_ CO2 + __2_ H2O.
So, the correct answer is 1,2,1,2.
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Hello!
We have the following data:
Area (A) = 50 square feet
Mass (m) = 8.5 ounces
Density (d) = 2.70 g/cm³
Volume (V) = ?
Thickness (T) =? (in mm)
To move on, we must transform the area of 50 ft² in cm², let's see:
1 ft² ------- 929,0304 cm²
50 ft² ----- A
In the same way, we will convert the mass of 8.5 oz in grams, see:
1 oz -------- 28,3495 g
8,5 oz ------- m
Knowing that the density is 2.70 g/cm³ and the mass is 240.97075 g, we will find the volume, applying the data in the density formula we have:
The statement wants to find the thickness of the packaging, for this we have some important data, such as: V (volume) = 89,25 cm³ and Area (A) = 46451,52 cm² and T (thickness) =? (in mm)
In the calculations of Costs in Surface Treatment of a part within the flat geometry, we will use the following formula:
We will convert to millimeters, going through a decimal place on the right
Hope this helps! :))
We have the following data:
Area (A) = 50 square feet
Mass (m) = 8.5 ounces
Density (d) = 2.70 g/cm³
Volume (V) = ?
Thickness (T) =? (in mm)
To move on, we must transform the area of 50 ft² in cm², let's see:
1 ft² ------- 929,0304 cm²
50 ft² ----- A
In the same way, we will convert the mass of 8.5 oz in grams, see:
1 oz -------- 28,3495 g
8,5 oz ------- m
Knowing that the density is 2.70 g/cm³ and the mass is 240.97075 g, we will find the volume, applying the data in the density formula we have:
The statement wants to find the thickness of the packaging, for this we have some important data, such as: V (volume) = 89,25 cm³ and Area (A) = 46451,52 cm² and T (thickness) =? (in mm)
In the calculations of Costs in Surface Treatment of a part within the flat geometry, we will use the following formula:
We will convert to millimeters, going through a decimal place on the right
Hope this helps! :))