The answer is to this question is c
Answer:
There are three isotopes of silicons. They have masses numbers of 28, 29 and 30. The average amount of silicons is 28.086alum
Explanation:
I learned this in class three days ago so I hope this is helpful i'm in high school ask me for help when ever you want Iĺl help you
5L O2 x 1 mol O2/ 22.4L O2 x 2 mol H20/ 1 mol O2 x 22.4L H20/ 1 mol H20 = 10 L H2O
For future reference though, since its at STP that means that the coefficient are in proportion. Since oxygen has a coefficient of 1 and water has a coefficient of 2 for every 1 liter of oxygen there is 2 liters of water. Hence you started with 5 liters and ended with 10
Answer:
Explanation: Circle
Solve for area
A=πr2
onversion result for two surface area units:
From unit Symbol Equals Result To unit Symbol
1 square centimeter cm2 , sq cm = 1.27 ∅ 1-centimeter circles ∅ 1 cm
Amount : 18 ∅ 1-millimeter circles (∅ 1 mm)
Equals : 0.14 square centimeters (cm2 , sq cm)
Fraction : 7/50 square centimeters (cm2 , sq cm)
Answer:
a) kc= [SO3 ]/([SO2 ][O2 ])
b) kc= 2.27*10⁶ M⁻¹
v) the reaction is product-favored
Explanation:
for the reaction, the equilibrium constant is
SO2 (g) + O2 (g) <-----> SO3 (g)
he equilibrum constant is
kc= [SO3 ]/([SO2 ]*[O2 ])
replacing values
kc= [SO3 ]/([SO2 ]*[O2 ]) = 1.01*10⁻² M/(3.61*10⁻³M*6.11 x 10⁻⁴ M) = 2.27*10⁶ M⁻¹
since kc>>1 the reaction is product-favored
