Answers
Answer:
F2: 1
NaBr: 2
NaF: 2
Br: 1
Explanation: Give like :(
Related Questions
Be sure to answer all parts. How many moles of water contain each of the following number of molecules?
Report your answer using appropriate number of significant figures.
a. 9.52 x 1026 molecules
_____ mol
b. 7.81 x 1022 molecules
_____mol
c. 2.5 % 1023 molecules
_____ mol
Answers
Answer:
1.520
1.333
15.899
Explanation:
its very easy
N = n x No
No = avogadro's number = 6.02 x 10²³
n = mol
a. 9.52 x 10²⁶ : 6.02 x 10²³ = 1.58 x 10³ (3 sig figs)
b. 7.81 x 10²² : 6.02 x 10²³ = 1.30 x 10⁻¹ = 0.130 (3 sig figs)
c. 2.5 x 10²³ : 6.02 x 10²³ = 0.42 (2 sig figs)
Which organism is most responsible for the decrease in the great white shark population? (1 point)
O rays
O oysters
O scallops
O humans
com/index.html
Answers
Answer: Humans
Explanation: because humans kill great white sharks because scallops, rays and oyster cannot kill them
Answer:
D
Explanation:
The answer is d humans because i already took the test and that's the awnser
The following questions pertain to a 0.50 M solution of HOCl at 25℃. pKa = 7.46 at 25℃. a. Find the concentration of all species present in the solution at equilibrium. b. Find the pH of the solution. c. Identify the strongest base in this system.
Answers
The concentration of all species, the pH of the solution, and the strongest base is respectively given as)
a
C_HOCl=0.5C_H3O=1.137*10^{-7}ClO=1.137*10^{-4}b)pH=3.88
c)ClO-
What are the concentration of all species, the pH of the solution, and the strongest base?
Question Parameters:
a 0.50 M solution of HOCl at 25℃. pKa = 7.46 at 25â„
Generally, the equation for the Chemical Reaction is mathematically given as
HOCl=H30+ClO
Therefore
ka=\frac{H3O(ClO)}{HOCl}
Ka=10^{-7.46}
x.x/0.5-x=10^{-7.46}
x=1.317*10^{-4}
In conclusion
a)
the concentration HOCl
C_HOCl=0.5-1.137*10^{-4}
C_HOCl=0.5
the concentration H3O
C_H3O=1.137*10^{-7}
the concentration ClO
ClO=1.137*10^{-4}
b)
pH=-log(1.317*10^{-4})
pH=3.88
c)
The strongest base of the three is the
ClO-
Read more about Chemical Reaction
https://brainly.com/question/11231920
It takes Maya 30 minutes to solve 5 logic puzzles, and it takes Amy 28 minutes to solve 4 logic puzzles. Use models to show the rate at which each student solves the puzzles, in minutes per puzzle If Maya and Amy had the same number of puzzles to solve, who would finish first? Explain.
Answers
Maya- 6 minutes per puzzle or 6/1
Amy- 7 minutes per puzzle or 7/1
If Maya and Amy had the same amount of puzzles to solve, Maya would finish first considering it takes Maya just 6 minutes to finish a puzzle as opposed to the 7 minutes it takes Amy.
Explanation: Divide 30 minutes by the 5 puzzles maya completed, to find out Maya does each puzzle in 6 minutes. Then divide 28 minutes by the 4 puzzles Amy completed, to find out it took her 7 minutes per puzzle.
Hope this helped :)
How many TOTAL atoms are contained in 10 molecules of TNT, C7H5N3O6?
Answers
What is the missing symbol in the following nuclear transformation
Answers
Answer:
the missing symbol is 2 b e
Explanation:
What is the number of molecules of CO2 in 0.236 moles?
Answers
Answer:
mole of CO2 = 6.023*10^23 molecules.
3 moles of CO2 = 3*6.023*10^23 molecules
therefore, 3 moles of CO2 = 18069*10^20 molecules.
If two boxes are pushed with the same amount of total force, one weighs 1kg & the other weights 100 kg, which box will accelerate faster
Answers
Answer:1kg box because the smaller the mass, the greater the acceleration
helppp me please !!
Answers
The temperature of a sample of iron increased by 23.1 °C when 267 J of heat was applied. What is the mass of the sample?
Answers
Answer:
25
Explanation:
go answer my question pls
Q = mcΔt
c iron = 0.449 (from table)
m = Q/cΔt
m = 267 /(0.449 x 23.1)
m = 25.74 g