2. Use the following BALANCED equation.
3 Ba + Al2(S04)3 → 2 Al + 3BaSO4
a. How many grams of aluminum will be produced if 12.0 g of Ba react with 9.0 g of AI2(SO4)3?
b. What ingredient would be considered the limiting reactant?
C. What is the excess reactant?
BONUS: How many grams of the excess reactant will be left over? SHOW ALL WORK — use the back if necessary.

need more information

step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.