Answer:
A) 21.0 g of N2
Explanation:
From the periodic table:
atomic mass of nitrogen = 14 grams
This means that:
molar mass of N2 = 2(14) = 28 grams/mole
Now, from the given balanced equation, 2 moles of NaN3 produce 3 moles of N2. We can use cross multiplication to know the number of moles of N2 produced from 0.5 moles of NaN3 as follows:
2 moles NaN3 ..............> 3 moles N2
0.5 moles NaN3 ...........> ?? moles N2
number of moles of N2 = (0.5*3) / 2 = 0.75 moles
Now, we will get the mass of 0.75 moles as follows:
number of moles = mass / molar mass
mass = number of moles * molar mass
mass = 0.75 * 28
mass = 21 grams
Hope this helps :)
Answer:
-f/6
Step-by-step explanation:
(f/g)(-1) = -f/g x 1 = -f/g
Answer:
43
Step-by-step explanation:
Given:
First 2 days the salesperson sold an average of $44531 cars.
For next 11 days she sold an average of $50063 cars.
To find the sell on average per day over the entire time,
The total cost is,
The total number of days she work is 2+11=13.
So, the average cost per day is,
Answer: the average cost per day over entire time salesperson worked is $49211.92
Answer: The coordinates of point be are (1,-1)
Step-by-step explanation:
The reflected point will be equidistant from the point over which it is reflected as the original point and in the same line as the original point and the reflected point.
Find the difference between the x and y values of the given points and add that value (distance) to the reflection point.
x-values: 4-7 = -3 y-values: 0-1 = -1
Add to reflection point x: 4-3 = 1 y: 0 -1 = -1
