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4 years ago

Need Help balancing the 3 questions on top

Mathematics

1 answer:

Scrat [10]4 years ago

7 0

Answer:

4Na + 1O2 > 2Na2O

SF6 > 1S + 3F2

2FE2O3 > 4FE + 3O2

Step-by-step explanation:

1. Identify the Products and Reactants(always do O2 last)

2. determine how many atoms of each element are present on each side of the equation

3. Add Coefficients and never change the subscripts. If there's a coefficient in front of any compound, it is distributed to both elements.

4. find the total number of atoms on both sides of the equation and make sure they equal with each other

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Please answer please

LUCKY_DIMON [66]

Answer: 53

Step-by-step explanation: We can use any of the trigonometric functions to find the angle. I'll just use sin. Sin-1(48/60) = 53

6 0

4 years ago

Simplify (20a^5)(b^3)/(10a^9)(b^2)

vodomira [7]

Answer: 2a^-4 * b^2

Step-by-step explanation:

8 0

4 years ago

Sydney is playing a game on a map with a marked grid. To start, she places a game piece at (1, 4). She moves 3 units east and 2

Anastasy [175]

Answer:

(7, 8)

Step-by-step explanation:

If Sidney places each piece 3 units east and 2 units north of the last one, we can figure out which coordinate comes first by subtracting the position of the second piece (S) by the position of the first piece (F):

$S - F = (4,6) - (1,4) = (3,2)$

We can conclude that coordinates are in the (East, North) format.

Therefore, the location of the third piece (T) is:

$T = S(E,N) +(3,2)= (4,6)+(3,2)\\T = (7,8)$

6 0

3 years ago

What is the volume of the cylinder shown below?

Fofino [41]

The volume:
Pi x r^2 x h

V = pi x 12^2 x 7
V = 1008pi units^3
The answer would be a
hope it helps.

5 0

4 years ago

Read 2 more answers

X+6/2 - x-8/3 = 5<br><br> HELP PLEASE

Hoochie [10]

(x + 6)/2 - (x - 8)/3 = 5
Multiply each term by 6:-
3(x + 6) - 2(x - 8) = 30
3x + 18 - 2x + 16 = 30
3x - 2x = 30 -18 - 16
x = 30 - 34
x = -4 (answer)

4 0

3 years ago

Read 2 more answers