Balance it by oxidation number method:KMnO4+H2SO4+H2S---->K2SO4+MnSO4+H2S +S
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Answer:
Answer:
step 1:balance skeleton equation the chemical equation:
KMnO4+H2SO4+H2S➔K2SO4+MnSO4+H2O+S
step 2: identity undergoing oxidation or reduction
here
KMnO4➔MnSO4
Mn is reduced from 7 to 2 in oxidation no.
H2S➔S
S is oxidized from -2 to 0 in oxidation no
Step 3: calculate change in oxidation no.
change in oxidation no
in Mn=2-7=-5=5
in
S=0--2=2
Step 4: Balance it by doing crisscrossed multiplication
we get;
2KMnO4+H2SO4+5H2S➔K2SO4+2MnSO4+H20+5S
step 6:Balance other atoms except H & O
2KMnO4+3H2SO4+5H2S➔K2SO4+2MnSO4+H20+5S
finally: balance H
2KMnO4+3H2SO4+5H2S➔K2SO4+2MnSO4+8H20+5S
Step-by-step explanation:
hope it is helpful to you
Related Questions
Help anyone and can anyone explain this too!
Answers
Answer:
X = 9
Step-by-step explanation:
Vertical angles equal to each other, the example shows vertical angles.
6x + 2 = 54
-2 -2
6x/6 = 54/6
X = 9
Hope this helps you have a nice day!
3 What is the median of the data shown?
38, 50, 43, 33, 35, 30, 64, 43, 41
А 34
B 35
С 41
D 43
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Plz mark brainliest I just took a test with this!
Which is the rate of change for the interval between 2 and 6 on the x-axis?
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(10000*C)/1.05+(10000*C)/1.05^2…..(10000*C)/1.05^13=100
Find C?
Answers
9514 1404 393
Answer:
C ≈ 0.00106455765168
Step-by-step explanation:
This is the sum of 13 terms of the geometric series that has 10000C/1.05 as the first term and a common ratio of 1/1.05. The sum S is given by ...
S = a1(1 -r^n)/(1 -r) . . . . a1 is the first term, r is the common ratio
Using the known values, we have ...
100 = (10000C/1.05)(1 -1.05^-13)/(1 -1/1.05))
0.01 = C(1 -1.05^-13)/0.05
C = 0.0005/(1 -1.05^-13) ≈ 0.0005/0.469679
C ≈ 0.00106455765168
Answer:
C ≈ 0.00106455765168
Step-by-step explanation:
100 = (10000C/1.05)(1 -1.05^-13)/(1 -1/1.05))
0.01 = C(1 -1.05^-13)/0.05
C = 0.0005/(1 -1.05^-13) ≈ 0.0005/0.469679
C ≈ 0.00106455765168
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Answers
Answer: 2 1/2
Step-by-step explanation:
That is the answer
Answer:
2 1/2
Step-by-step explanation:
Find the scale factor of ΔABC to ΔFGH.
Answers
Answer:
4:3
Step-by-step explanation:
AC=8
FH=6
8/6=4/3=4:3
From the figure below, Prove that segment JP is parallel to segment LM.
1. Slope of JP
(Write answer as a fraction. Ex 5/6. No spaces)
2. Slope of LM
(Write answer as a fraction. Ex 5/6. No spaces)
3. The two segments are Parallel or Perpendicular?
(spell out the correct
answer. No caps needed)
Answers
Answer:
1. Slope of JP is 2/3
2. Slope of LM is 2/3
3. The two segments are Parallel.
Step-by-step explanation:
1. Slope is easy to find out if you have a graph. Rise/Run is how I remember it. The only thing you have to do is count. If you count from P to J Down 2 unites, and left 3 units you get your answer.
2. Slope LM is the exact same as Slope PJ because they are parallel.
3They are parallel because they both have the same slope.
Which equation matches this graph?
Answers
Answer:
its the 3rd one
Step-by-step explanation:
Bcs i know
A box is to be wrapped in a shiny red decorative paper.The box is 9 inches long,5 inches wide,and 4 inches high.How much wrapping paper would be needed to completely wrap this box?
Answers
Answer:
Draw a figure!
There are 6 surfaces to add.
4 of them have area 9*5 and 2 have area 5*4.
You should be able now to compute the surface areas.
Step-by-step explanation:
Which statement best explains conditional probability and independence?
When two separate events, A and B, are independent,
P(A and B) P(A).P(B)
P(BA)
P(B). This means that the
P(A)
P(A)
occurrence of event B first did not affect the probability of event A occurring next.
When two separate events, A and B, are independent,
P(A and B) P(A).P(B)
P(BA)
- P(B) This means that the
P(A)
P(A)
occurrence of event B first affected the probability of event A occurring next.
When two separate events, A and B, are independent,
P(A and B) P(A.P(B)
P(BA)
P(B)
P(A)
This means that the
PA
occurrence of event A first did not affect the probability of event B occurring next.
When two separate events, A and B are independent,
P(A and B) P(A).P(B)
P(BA)
P(B)
P(A)
P(A)
This means that the
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Answer:
The answer of the question would be: C)
Step-by-step explanation:
When two separate events, A and B, are independent, P(A|B)=P(B). This means that the probability of event B occurring first has no effect on the probability of event A occurring next. Because of the evident independence.
I need help answering this
Answers
an ___ is a statement of equality of two algebraic expressions involving one or more unknown quantities
Answers
Answer:
Equation
Step-by-step explanation:
an equation is a statement of equality of two algebraic expressions involving one or more unknown quantities.
Compare the steps to find the distance between two points on the coordinate plane by first using the Pythagorean Theorem and then using the Distance Formula.
PLEASE HELP WILL GIVE BRAINLIEST!!
DONT ANSWER WITH A FILE
Answers
Pythagorean Theorem:
c^2 = a^2 + b^2
c^2 = c^2
Sqrt c^2 = Sqrt c^2
c = c
Distance formula:
d = sqrt (x2 - x1)^2 + sqrt (y2 - y1)^2
d = sqrt x^2 + sqrt y^2
d = x + y
d = distance between two points
(This is the best I can do with no numbers provided, I hope this helps)
Which statements are true about the number 2One-fourth? Check all that apply.
Answers
Answer:
wheres the picture
Step-by-step explanation:
The ordered pairs (20, -29.5),(21, -31), and (22, -32.5) are points on the graph of a linear equation. Which
of the following graphs show all of the ordered pairs in the solution set of this linear equation?
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The graph that contains the 3 points is the bottom right graph.
Which line contains the 3 points?We want to see which of the graphs contains the 3 ordered pairs:
(20, -29.5),(21, -31), and (22, -32.5)
So we just need to look at the graphs and see which one has these points, notice that as x increases y decreases, so we have a decreasing line.
The slope of the decreasing line is:
a = (-31 + 29.5)/(21 - 20) = -1.5
The graph with this slope is the last one (bottom right, the other decreasing line has a slope of -1). So that is the correct option.
If you want to learn more about lines:
https://brainly.com/question/1884491
#SPJ2
A puppy’s weight increased from 12 pounds to 15 pounds. By what percentage did the puppy’s weight increase?
Answers
=======================================================
Work Shown:
A = old value = 12 pounds
B = new value = 15 pounds
C = percent change
C = [ (B-A)/A ] * 100%
C = [ (15-12)/12 ] * 100%
C = (3/12)*100%
C = 0.25*100%
C = 25%
The positive C value indicates a percent increase
So effectively, we find the difference or change in weight (B-A) and divide it over the original weight (A). That leads to 0.25 which converts to 25%
Note that,
25% of 12 = 0.25*12 = 3
This says that the puppy gained 3 pounds, which is the value of B-A
Since the puppy gained 3 pounds, the new weight is 12+3 = 15 pounds
-----------
As an alternative, we could divide the two values B over A to find that
B/A = 15/12 = 1.25
Then subtract 1 from this result: 1.25 - 1 = 0.25 = 25%
During a 5% off sale Diego pays $74.10 for a new hockey stick what was the original price
Answers
Answer:
3.705
Step-by-step explanation:
do 5% of 74.10
tell me if you get it right!!! :)
Isabella is bouncing a rubber ball that has a density of 1.5 g/cm3 . The rubber ball has a volume of 113 cm³.
What is the mass of the rubber ball?
Answers
Answer:
The mass of the rubber ball is 169.5g
Step-by-step explanation:
we know that
The density is equal to the ratio of the mass by the volume
D=m/V
Solve for m
m=D*V
In this problem we have
V=113 cm^3
D=1.5 g/cm^3
substitute
m.1.5*113=169.5g
Help Help Help Help Help FAST GO ZOOOOOOOOOOOOM WITH THIS QUESTION PLEASE
Answers
Answer:
A. 60+x=90
Step-by-step explanation:
Complimentary angles are angles that add to 90.
Calculate the volume of the shape below:
of
10 m
25 m
16 m
Answers
Answer:
4,000
Step-by-step explanation:
plz help me with thiss
Answers
Answer:
subject?
Step-by-step explanation:
Answer:
See belowStep-by-step explanation:
Refer to attached
When plotted the points and connected, it is clear that from the shape of the lines that f(x) is exponential and g(x) is linear function.
Small correction, f(1) should be 1/2, otherwise with repeat values it is not a function.The intersection of the graphs is also given, with added section of function f(x), it is clear the added point is (-3, 8) and connected with red line segment. Approximate coordinates are indicated (-2.54, 6.15)
Will mark brainiest if u give a real answer not a link
create an exponential function given 2 point
1. (-1,2) and (1,8)
2. (1,1) and (-1,4)
Answers
1. y = 4 * 2^x
2. y = 2(1/2)^x
I hope this helps you, have a good day!
evaluate the algebraic expression 18 + (- 31) =
Answers
Answer:
-13
Step-by-step explanation:
Look at the right-angled triangle ABC.
32°
The square fits exactly inside the triangle.
Work out the sizes of angles x, y and z.
Answers
Answer:
∠x = 90°
∠y = 58°
∠z = 32°
Step-by-step explanation:
he dimensions of the angles given are;
∠B = 32°
Whereby ΔABC is a right-angled triangle, and the square fits at angle A, we have;
∠A = 90°
∠B + ∠C = 90° which gives
32° + ∠C = 90°
∠C = 58°
∠x + Interior angle of the square = 180° (Sum of angles on a straight line)
∠x + 90° = 180°
∠x = 90°
∠x + ∠y + 32° = 180° (Sum of angles in a triangle)
90° + ∠y + 32° = 180°
∠y = 180 - 90° - 32° = 58°
∠y + ∠z + Interior angle of the square = 180° (Sum of angles on a straight line)
58° + ∠z +90° = 180°
∴ ∠z = 32°
∠x = 90°
∠y = 58°
∠z = 32°
Write the slope-intercept form of the equation of the line.
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A medication is 69 % effective against a bacterial infection. Find the probability that if 8 people take the medication at least 1 person's infection will not improve. Please round the final answer to three decimal places.
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Answer:
5.52%
Step-by-step explanation:
there is a 5.52% chance of it not improving you do 69% of 8 and that determines if its not gonna get better.
Megan earned the following test grades for the third nine weeks: 95, 84, 90, 78, 83. Find the mean absolute deviation of the data. Do not round, enter any decimal.
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Answer:the answer is FREE COINS!
Step-by-step explanation:
help me ASAP
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Answers
Answer:
(2,4)
Step-by-step explanation:
I painfully counted every square to find that a 1 by 1 square is divided into an 8 by 8 square.
K is one square above 1/2, for the second coordinate is 4.
K is also 2 to the left of 0, so the first coordinate is 2.
Therefore, the coordinates of K are (2,4).
A. 49
B. 7
C. 17
D. 61
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Answer:
B:17
Step-by-step explanation:
Because it logically is the only answer that makes sense.
49
Step-by-step explanation:
i dont even know tbh i just guessee
Explain how u got the answer
Answers
Answer:
rectangle = 2(50) +2(70) + 2(35) = 310
square = 2(32) + 2(12) + 2(24) = 136
Add
136 + 310 = 446 cm^2
SA = 446 cm^2
hope you can give me brainliest !
Step-by-step explanation: