Help plz:)))I’ll mark u Brainliest

Answers

Answer 1

[tex]\frac{245 g SO2 }{} \frac{1 mol SO2 }{64.07 g SO2} \frac{1 mol H2SO3}{1 mol SO2 } \frac{82.09 g H2SO3}{1 mol H2SO3} =314 g H2SO3[/tex]

Step-by-step explanation:

2) What mass of Sulfurous acid is produced, when 245g of Sulfur Dioxide is

reacted with water?

H2O + SO2 → H2SO3

↓ ↑

mol → mol

SO2 H2SO3

\frac{245 g SO2 }{} \frac{1 mol SO2 }{64.07 g SO2} \frac{1 mol H2SO3}{1 mol SO2 } \frac{82.09 g H2SO3}{1 mol H2SO3} =314 g H2SO3

Related Questions

Given f(x) = 5^2x,evaluate f (-1), f (0),and f (2)

Answers

The values of f(-1), f(0), and f (2) are 0.04, 1 and 625, respectively

How to evaluate the function?

The function is given as:

f(x) = 5^2x

For f(-1), we have x = -1

This gives

f(-1) = 5^(2 * -1)

f(-1) = 0.04

For f(0), we have x = 0

This gives

f(0) = 5^(2 * 0)

f(0) = 1

For f(2), we have x = 2

This gives

f(2) = 5^(2 * 2)

f(2) = 625

Hence, the values of f(-1), f(0), and f (2) are 0.04, 1 and 625, respectively

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I need help with this problem can you please show the work

Answers

Answer:

48 degrees

Step-by-step explanation:

inscribed angle is always equal to the measure of the arc

HELP: Cho charges $1500 to build a small deck and $2500 to build a large deck. During the spring and summer, she built 5 more small decks than large decks.
If she earned $23,500 how many of each type of deck did she build?

Answers

Answer:

if she build x numbers of large decks, therefore small decks would be (x + 5)

1500*(x+5)+2500x =23500

1500x+7500+2500x=23500

4000x+7500 =23500

4000x=23500-7500

4000x=16000

x=4

4+5=9

cho built 4 large decks and 9 small decks

What is the elasped time of 7:41 pm and 8:50 pm

Answers

Answer:

about 1 hour and 9 minutes or 69 minutes

Step-by-step explanation:

I always add the hour first if I can (from 7:41 to now 8:41) and then add however many minutes are left (9 minutes).

Using the Addition Method, find the value of x in the
system of equations
3x + 2y = 2
-3x + 5y = 5

Answers

Step-by-step explanation:

3x+2y=2------------1

-3x+5y=5-----------2

adding 1 and 2 we get

7y=7

y=1

and from (1),we get

3x+2×1=2

3x=0

x=0 is the required value of x.

We want to solve the given system of equations by using the addition method.

The solution is x = 0.

So we start with the system of equations:

3x + 2y = 2

-3x + 5y = 5

We want to use the addition method, this means that we just add these two equations (left side with left side and right side with right side, in this case) we will get:

(3x + 2y) + (-3x + 5y) = 2 + 5

Now we simplify this to get:

7y = 7

Solving for y, we get:

y = 7/7 = 1

Now that we know the value of y, we can replace it on one of the equations and then find the value of x, let's use the first equation:

3x + 2*1 = 2

3*x = 2 - 2 = 0

x = 0

Then we can conclude that the value of x is 0.

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What’s the answers to 15 and 16

Answers

15.) GF = 31
16.) DE = 11

Fin the sum or difference of the polynomial (9x2 +3x+2)+(3x2 –5x-3) write your answer in descending order

Please explain so I can do the rest myself help

Answers

Combine your like terms:

9x^2 + 3x^2 = 12x^2
3x + -5x = -2x
2 + -3 = -1
12x^2 - 2x - 1

Find the circumference of a circle with diameter 2 cm. Use 3.14 for

Answers

Answer:

6.28 cm

Step-by-step explanation:

Given,

Diameter = 2 cm

pi = 3.14

To find : Circumference ( circle ) = ?

Radius ( r )

= Diameter / 2

= 2 / 2

= 1 cm

Formula : -

Circumference ( circle ) = 2 pi r

2 pi 4

= 2 × 3.14 × 1

= 6.28 cm

Answer:

6.28

Step-by-step explanation:

radius= diameter/2

r=2/2=1

circumference formula=2[tex]\pi[/tex]r

[tex]\pi[/tex]=22/7 or 3.14

So,

2[tex]\pi[/tex]r= 2*3.14*1= 6.28

Estimate the sum 11 3/8 + 9 7/10 + 21 1/4 by rounding each mixed number to the nearest whole number. Then find the exact sum

Answers

Answer:
Approximately 42.
Exact sum is 42 13/40.

Explanation:
Estimate 11 3/8: 11
Estimate 9 7/10: 10
Estimate 21 1/4: 21
Add them together: 42.

11.375 + 9.7 + 21.25 = 42.325
I made them into decimals and then will convert it into fraction.
42.325 = 42 13/40

Hope this helps!

What are the two zeros of the quadratic function defined by the expression 9x2 - 4?

Answers

The zeros of this function is

x=2/3 , -2/3

what is the angle of d

Answers

Answer:

115°

Step-by-step explanation:

65 +65 = 130

360-130= 230

230÷2= 115

The sale price for a bicycle is $315. The original price was first discounted by 50percent and then discounted an additional 10 percent. Find the original price of the bicycle. Need answer now please!!

Answers

Answer:

Step-by-step explanation: Let the original price of the bicycle be $x. If the original price was first discounted by 50% and then discounted an additional 10%, the total percentage discount will be 60%.

Step-by-step explanation:

Amy has three times as many Star Wars toys as Carly. Total they have 160 Star Wars toys. How many Star Wars toys does Amy have?

Answers

Answer:

Step-by-step explanation:

Amy has 120 star war toys.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Amy:

Number of toys = 3x

Carly:

Number of toys = x

Now,

In total, they have 160 Star Wars toys.

So,

x + 3x = 160

4x = 160

x = 40

Now,

3x = 3 x 40 = 120

x = 40.

Thus,

Amy has 120 toys.

Carly has 40 toys.

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Which of the expressions below has a quotient that is greater than 15? Select all that apply.
A) 192÷12
B) 73÷5
C) 153÷9
D) 112.5÷9

Answers

The first one has a quotient greater than 15

What is the measure of angle X 60° and 40°

Answers

Answer:

80 degree is the measure of third angle

Round to the nearest whole dollar: $7.23

Answers

Answer:

$ 7

Step-by-step explanation:

To round 7.23 to the nearest whole dollar consider the tenths’ value of 7.23, which is 2 and less than 5. Therefore, we have to round the amount down: the dollar ones place value of 7.23, 7, remains 7, and the decimal point and all digits (.23) are removed.

$7.23 rounded to the nearest dollar = $7

7 dollars I the answer

What is the sales tax for a purchase of $20 if the tax rate is 10 percent?

Answers

Answer:

Step-by-step explanation:

If you multiply it by 0.10 that is 10 percent and you get 22 which is 2 more than 20

Answer:

Before Tax Price: $20.00

Sale Tax: 10.00% or $2.00

After Tax Price: $22.00

Step-by-step explanation:

Finding missing angles

Answers

Answer:

The answer is 45 degrees

Answer: x = 45°

Step-by-step explanation:

since the total angle of that corner is 90°, and one of the angle is 45°

7.EE.1.1
An expression is shown.
(0.25n - 0.3) – (0.8n - 0.25)
Create an equivalent expression without parentheses.

Answers

Answer:

-0.55n - 0.05

Step-by-step explanation:

You can start by distributing:

(0.25n - 0.3) - (0.8n - 0.25)

0.25n - 0.3 - 0.8n + 0.25

Then, you can combine like terms(0.25n & -0.8n; -0.3 & 0.25)

-0.55n - 0.05

Answer:

-0.55n - 0.05

Step-by-step explanation:

(0.25n - 0.3) – (0.8n - 0.25)

When subtracting the signs change

0.25n - 0.3 - 0.8n + 0.25

Regroup like terms

0.25n - 0.8n - 0.3 + .25

Combine like terms

-0.55n - 0.05

La suma de un numero mas 16 es igual a 31

Answers

Answer:

Step-by-step explanation:

Expand and simplify (2x + 1)(x + 3)

Answers

2x2 + 7x + 3 -answer

(2x + 1) (x + 3)

(2x * x) + (2x * 3) + (1 * x) + (1 * 3)

2x2 + 6x + x+3

2x2 + 7x + 3

ANSWER THIS ASAP NO FILE AT ATT!!

Answers

Answer:

option B.

Step-by-step explanation:

Have a great day! :)

Answer:

A would be your answer

Step-by-step explanation:

at least I am pretty sure I'm really sorry if I am wrong

Do the line segments with the given lengths form a right triangle? Drag each set of lengths into the correct box.

Answers

Answer:

1) Yes

2)No

3)Yes

Step-by-step explanation:

Use pythagoreans theorem for the first two side lengths and see if it's equal to the third!

Based on the Pythagorean Triple, "9, 40, 41", " will form a right triangle(YES), while "11, 60, 62" and "48, 55, 73" will not (NO).

To find given lengths form a right triangle or not.

What is the Pythagorean Triple?

The Pythagorean triple can be described as any three set of integers representing sides of a right triangle that are solutions to the Pythagorean Theorem, which is given as:

c² = a² + b².

c is the longest side of the right triangle or largest of the set of integers of the Pythagorean triple.

Thus, find out which set of lengths will form a right triangle:

9, 40, 41 will form a right triangle, because:

41² = 40² + 9²

1,681 = 1,681

Also, the rest set of lengths will not form a right triangle.

Thus, based on the Pythagorean Triple, "9, 40, 41", " will form a right triangle(YES), while "11, 60, 62" and "48, 55, 73" will not (NO).

Learn more about Pythagorean Triple here:

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Scott earns $10 per hour for babysitting and $30 per hour for computer repair work. Which inequality represents how many hours Scott could babysit, b, and how many hours he could do computer work, c, to earn a total of at least $600 this month? A. 10b + 30c > 600
B. 10b +30C 600
C. 40(b+c)2 600
D. 40(b+c) 5600 E.
Do Not Know

Answers

Answer:

Step-by-step explanation:

pls helpppppppp meee i dont wanna faillll

Answers

Answer:

D, No trend or association

Find the area of the composite figure.
A. 27.5 sq in
B. 37.5 sq in
C. 45 sq in
D. 55 sq in

Answers

Answer:

B. 37.5 sq in

Step-by-step explanation:

sana po makatulong ☺️

speeeeeeeeeeeeeeeeeeddddddddddddd

Answers

0.2 is the answer I believe ^^

When converting a percent to a decimal, will there always be two digits after the decimal point? Explain

Answers

Answer:

Step-by-step explanation:

For example, 50% can be written as just 0.5

Dam shawty looking good

Which of the following numbers is not a perfect square?
49 124 169 361

Answers

Answer: 124

Step-by-step explanation: 7^2=49; 13^2=169; 19^2=361. Only 124 cannot be expressed as a square of an integer.

Answer:

124

Step-by-step explanation:

Which number completes the table for y = x^2?
a.) -9
b.) 9
c.) 6
d.) -6

Answers

Answer:

Step-by-step explanation:

We can substitute the x value given, -3, into our equation, y = x^2, to get what the y would be:

y = x^2

y = (-3)^2

When a negative number is squared, it is positive, so (-3)^2 = 9, and:

y = 9

This is option b

Answer:

B) 9

Step-by-step explanation:

We are given the equation y = x^2 for the table, and a x value.

To find the y value that corresponds to that x value, we must plug the x value in the equation.

Y =x^2

Y= -3^2

Y=9

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