When baking soda and vinegar react, the surface bubbles. What does this most likely indicate?

a chemical change, because a precipitate is being formed
a chemical change, because a gas is being formed
a non-chemical change, because a precipitate is being formed
a non-chemical change, because a gas is being formed

Answers

Answer 1

Answer:

the answer is B


Related Questions

Find the range of allowable values based on the given information.

Round to the nearest tenth.

15; can vary by 2%

Answers

Answer:

14.7 to 15.3

Step-by-step explanation:

To find the range of values that can are permitted to vary by 2% of 15, first,

find the value of 2% of 15:

[tex] \frac{2}{100} * 15 = \frac{30}{100} = 0.3 [/tex]

The range of values allowed would either be 0.3 less than 15 or 0.3 more than 15.

Thus, the values would be:

15 ± 0.3

= 15 - 0.3 or 15 + 0.3

= 14.7 or 15.3

This means the minimum value allowed is 14.7, while the maximum value allowed is 15.3.

Therefore, the answer is:

14.7 to 15.3

Answer:

14.7 to 15.3

Step-by-step explanation:

Step-by-step explanation:

To find the range of values that can are permitted to vary by 2% of 15, first,

find the value of 2% of 15:

The range of values allowed would either be 0.3 less than 15 or 0.3 more than 15.

Thus, the values would be:

15 ± 0.3

= 15 - 0.3 or 15 + 0.3

= 14.7 or 15.3

This means the minimum value allowed is 14.7, while the maximum value allowed is 15.3.

Therefore, the answer is:

14.7 to 15.3

Find AC
Round to the nearest tenth.
BC=5
B=108°
A=31°

Answers

B/sin(b)=a/sin(a)

b=a sin(b)/sin(a)

B=5 sin(108)/sin(31)

b=9.2

c) If C.P. = Rs 660, loss percent = 5% find S.P.
d) If C.P = Rs 530, profit percent = 20%, find S.P.​

Answers

Answer:

Hope this solution helps you

The distance between - 5 and -7​

Answers

Answer:

-2

Step-by-step explanation:

The sum of four consecutive integers is –18. What is the greatest of these integers?

Answers

Answer: -3

Step-by-step explanation:

The Consecutive numbers would be -3, -4, -5, -6. If you add them all up it equals -18. -3 is the greatest of the numbers as it is closest to 0.

what is the algebraic expression for , a number b divided by 36

Answers

Answer:

b/36

Step-by-step explanation:

If f(x) = 8 - 5x, find f(3) *

Answers

Answer:

Step-by-step explanation:

f(3)= 8-5(3)

=8-15

=-7

What is the solution to 10(2x - 4) = 100x? Please do your best.

Answers

10(2x-4)=100x

20x-40=100x

-40=100x-20x

-40= 80x

-40/80x= -0.5

10(2x-4)=100x

20x-40=100x

20x=100x+40

20x-100x=40

-80x=40

Answer : x= - 1/2

...I don’t understand umm can anyone help me smh-

Answers

Answer:

{Rounded to the nearest Hundredths place}

1) Mercury= 170.55
2) Venus= 277.86
3) Earth= 389.62
4) Mars= 401.29

Explanation:

Mercury: 3.3022 x 10^19= 170.549894825 which rounds to 170.55

Earth: 5.9722 x 10^24= 389.618945662 which rounds to 389.62

Venus: 4.8675 x 10^21= 277.855972801 which rounds to 277.86

Mars: 6.4185 x 10^23= 401.287714067 which rounds to 401.29

•So smallest to largest would be• 170.55, 277.86, 389.62, and 401.29

[I hope this helps][Sorry if it doesn’t make sense]

Use the Distributive Property of Division to rewrite the following. (pls Simplify) 9+12n/3

Answers

Answer:

The answer to this equation is 9+4n

If a transversal crosses three non-parallel lines, how many pairs of vertical angles are formed? Explain your answer

Answers

Answer: Each transversal crossing a line generates 2 pairs of vertical angles and for 3 transversal crossing the same line it will be 3 x2 = 6 pairs (or 12 angles)

Step-by-step explanation:

Simple Answer: Six pairs of vertical angles are formed, two for each line crossed by the transversal.

(●'◡'●) ^_^

what is the slope for a line that is perpendicular to the line y=-5+4

Answers

Answer:

just change the signs

Step-by-step explanation:

y=5-4

Hudson is driving on a long road trip. He currently has 13 gallons of gas in his car.
Each hour that he drives, his car uses up 1 gallon of gas. How much gas would be in
the tank after driving for 2 hours? How much gas would be left after t hours?

Answers

Answer:

gas after 2 hours would be 11 I dont get the t hours part

Combine like terms.
-7y2 + 2y3 – 7y + 4y3 + 6y2 + 4y2 + 3y


i need helpppp now !!! do anybody know the answer??

Answers

2y^3+4y^3 is 6y^3
-7y^2+10y^2 is 3y^2 ***NOTE: 10y^2 is from the 6y^2+4y^2
-7y+3y is -4y

Answer: 6y^3+3y^2-3y

The resultant expression is -7y+3y is -4y which could represent the combined terms.

What is the expression?

Expressions are defined as mathematical statements that have a minimum of two terms containing variables or numbers.

The expression is given in the question as follows:

-7y² + 2y³ – 7y + 4y³ + 6y² + 4y² + 3y

We have to determine the resultant expression that could represent the combined terms.

As per the question, we have

⇒ -7y² + 2y³ – 7y + 4y³ + 6y² + 4y² + 3y

Rearrange the terms likewise variables,

⇒ 2y³+4y³ -7y²+10y²-7y+3y

Here 2y³+4y³ is 6y³, -7y²+10y² is 3y², and 10y² is 6y²+4y²

⇒ -7y+3y is -4y

Therefore, the resultant expression is -7y+3y is -4y.

Learn more about Expressions here :

brainly.com/question/21751419

#SPJ2

Item 1 A discounted concert ticket costs $14.50 less than the original price p . You pay $53 for a discounted ticket. Write an equation that can be used to find the original price. Equation: =53 Find the solution to your equation. The original price of the ticket was $.

Answers

Answer:

$53 + $14.50 = x

x = $67.50

Step-by-step explanation:

Let us assume the original price be x

It is given that

The discounted ticket is $53

And, the discounted concert ticket cost is $14.50 lower than the orginial price

So, the equation is

$53 + $14.50 = x

Now the x is

= $53 + $14.50

= $67.50

Hence, x denotes the original price of the ticket

We simply added the above two amounts

Find the roots of each equation by factoring. 0=x^2–169

Answers

Answer:

x=13

Step-by-step explanation:

[tex]0=x^2-169[/tex]

[tex]169=x^2[/tex]

x=13

Hope this helped you.

<3

Red

Which of the following relations is a function?
I.
{(0, 0), (0, 1), (0, 2)}
II.
{(0, 0), (1, 1), (2,4)}
III.
{(0, 0), (1, 2), (2, 2)}
IV.
{(0, 0), (1, 2), (1,3)}
O (A) I, II, and Ill only
O (B) I and II only
O (C) I and III only
O (D) III and IV only
Someone I need it asapppp

Answers

Answer: is II and III an option those are the ones that would be correct.

Step-by-step explanation:

You can only have one of each domain. For example you cannot have (0,0) and (0,1) since that won’t pass the vertical line test, you can have (0,0) and (4,0) as long as the domains are different, they can still have the same ranges.

Enter the number that makes the equation true 2 7/8+1 4/5=__ +1 32/40​

Answers

Answer:

yo mama

Step-by-step explanation:

You got to McDonald's and order some food for you and your friends.Your friends give you a list of what you need to order: 1 cheeseburger, 2 orders of fries, 3 cheeseburgers, and 3 orders of fries. How can you simplify this order so that way you don't have to read of the exact list they gave you.

Answers

Answer:

4 cheeseburgers and 5 fries.

Step-by-step explanation:

Here, the orders given are as follows:

1 cheeseburger,

2 orders of fries,

3 cheeseburgers, and

3 orders of fries

If we observe closely, it can be seen that there are orders of cheeseburgers 2 times and orders of fries also 2 times.

In order to simplify the given list, we must add the similar kind of orders together.

Therefore the given order list can be written as:

1 cheeseburger + 3 cheeseburgers, and

2 orders of fries + 3 orders of fries

OR

In other words:

4 cheeseburger, and 5 orders of fries

Therefore, the simplified order is:

4 cheeseburger, and 5 orders of fries

What value of x is in the solution set of 3(x – 4) = 5x + 2?


A0 -10
B-5
C5
D10

Answers

Answer:

-5?

Step-by-step explanation:

3(x - 4) = 5x - 2

3x - 12 = 5x - 2

3x - 5x = -2 + 12

-2x = 10

x = -5

-5 I think


Explanation:

Simplify the expression.
-18 - 32 - 9 x |-2|

Answers

Answer:

-50-18x

Step-by-step explanation:

Answer:

4.444

Step-by-step explanation:

I need help with this pls

Answers

Answer:

1.0,1,3,-5

2.2,-2,4,-1

Step-by-step explanation:

if the altitudes of an equilateral triangle are all 18cm how long are its sides?

Answers

Answer:

Every side on a equilateral triangle are the same.

Step-by-step explanation:

18cm for each side

Kira is a runner. Her time to finish a race varies with the number of training miles she runs before that race. Which is the dependent variable?

Answers

her time to finish a race varies on how many miles she runs before hand. Making it the dependent.

Answer:

her time to finish a race varies on how many miles she runs before hand. Making it the dependent.

Step-by-step explanation:

The nth term of an arithmetic sequence is given by an
an= 4 + 5(n-1). If you were to graph ordered pairs where x is the term number and y is the term, what linear equation would describe the line that passes through the points?

Answers

Answer:

            y = 5x - 1

Step-by-step explanation:

aₙ = y    n = x

aₙ =  4 + 5(n-1)

y  = 4 + 5(x - 1)

y = 4 + 5x - 5

y = 5x - 1

One week, Jose earned $145.60 at his job when he worked for 7 hours. If he is paid the same hourly wage, how many hours would he have to work the next week to earn $83.20?

Answers

Answer:

4 hours

Step-by-step explanation: you divide 145.60 by 7 to find out the hourly wage, then you divide 83.20 by the hourly wage

What year is this car

Answers

Answer:

2006???

Step-by-step explanation:

lmk if it was right im curious lol

A coffee shop needs to purchase custom cups. Company C charges a flat fee of $155 plus $15 perrl cup. Company D does not have a flat fee but charges $30 per cup.

What is the minimum number of cups that must be ordered for company C to be a better deal than company D?​

Answers

Answer:

11 cups

Step-by-step explanation:

Not really a method just started at 10 and then realised deal d was better so go up by one so 11 and c worked out better as I timed 30 by 11 and 15 by 1 + the flat fee.

Ms. Jackson’s class is going to the zoo. The zoo charges $10 for an adult and $6 for each student. If the total was $118, how many students went to the zoo?

Answers

18 students
ms Jackson is the only adult so 118-10=108
108 divided by $6 is 18, so 18 students

Answer:

so that means 10 parents went and 3 children went

Step-by-step explanation: first you count by 10,s to get to 100 like this 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 and then 10 parents went and then you would count by 6 to get to 18 like this 6, 12, 18.

Can anyone help me how to do this?

Answers

The sum of the internal angles in a simple pentagon is 540°.

105 + 135 + 92 + 87 = 419

540 - 419 = 121

The angle is 121
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