Answer:
0.023 mol/(L*s).
Explanation:
Equation of the reaction:
2 D(g) + 3 E(g) + F(g) => 2 G(g) + H(g)
Using stoichiometry, 2 moles of D reacts with 3 moles of E and 1 mole of F to give the above products.
1 mole of D will react with 3/2 moles of E.
Delta[D]/delta t = 0.15 mol/L.s
Delta[E]/delta t = (3/2) * 0.15 =
= 0.023 mol/(L*s).
The answer is steel because you cannot pick water, oxygen, or gold out of a mixture.
<span>The half-life of a first-order reaction is determined as follows:
</span>t½<span>=ln2/k
From the equation, we can calculate the </span><span>first-order rate constant:
</span>k = (ln(2)) / t½ = 0.693 / 90 = 7.7 × 10⁻³
When we know the value of k we can then calculate concentration with the equation:
A₀ = 2 g/100 mL
t = 2.5 h = 150min
A = A₀ × e^(-kt) =2 × e^(-7.7 × 10⁻³ × 150) = 0.63 g / 100ml
= 6.3 × 10⁻⁴ mg / 100ml
Answer:
mass of hummingbirds is dependent and whatever the other one is the independent
Explanation:
The rate of change in the amount of silver supplied is equal to the ratio of the difference in the amount supplied to the number of years elapsed from 2005 to 2008. That is,
rate of change = (25 - 200) / (2008 - 2005) = -173/3
The answer is letter A.
