Two chemicals are mixed in a test tube and a chemical reaction takes place. If this reaction is endothermic and the test tube is touched, which of the following best describes what is felt?

The test tube is cold.

The test tube is warm.

The test tube is very hot.

The test tube is the same temperature as the air.

Answers

Answer 1

The test tube is cold best describes what is felt.

Option A is the correct answer.

What is a chemical reaction?

A chemical reaction is a process that leads to the transformation of one set of chemical substances into another.

In other words, it is the process of breaking and forming chemical bonds between atoms to create new compounds with different properties than the original substances.

We have,

An endothermic reaction is a type of chemical reaction that absorbs heat from the surrounding environment, resulting in a decrease in temperature.

In this case,

The chemical reaction that occurred in the test tube absorbed heat from the surroundings, including the air and the test tube itself.

As a result, the temperature of the test tube decreased, making it feel cold to the touch.

Thus,

The test tube is cold best describes what is felt.

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Related Questions

Please help ASAP it’s due in a few minutes.

Answers

Answer:

B is the grams of protein and cups of milk, 0 of each.

Answer:

1 a. The constant of proportionality is 1 cup of milk for every 8 grams of protein

1 b. 0 cups of milk for every 0 grams of protein

1 c. 4 Cups of milk for every 32 grams of protein

2 a. 1 for every 3

2 b. 1 for every 1

Step-by-step explanation:

yee hope this helped

-3 2/7 -(2 2/3) can someone please help me

Answers

Answer:-125/21 or -5 20/21


Steps:

First, change the mixed numbers to improper fractions.

So -3 2/7 = -23/7
2 2/3= 8/3

Second, make the denominators the same number

So multiply -23/7 by 3 and 8/3 by 7

-69/21-56/21

Subtract the numerators

-69-56= -125

So the answer is -125/21 or -5 20/21
125/21 that’s the answer to your problem

compare the initial value and the range for each of the linear functions of f(x) and g(x)

the domain of each function is the set of all real numbers x such that 8≤ x≤ 12. the table shows some ordered pairs for f(x). The function g(x) is defined by the rule g(x)=7x-3.


x | f(x)
_________
8 | 34
__________
9 | 38
_________
10 | 42
______
11 | 46
_______
12 | 50

Answers

Answer:

Solution

First identify the input values. The input value is the first coordinate in an ordered pair. There are no restrictions, as the ordered pairs are simply listed. The domain is the set of the first coordinates of the ordered pairs.

D={2,3,4,5,6}

Next identify the output values. The output value is the second coordinate in an ordered pair. The range is the set of the second coordinates of the ordered pairs. Do not list the same output twice.

The second coordinate in an ordered pair is the output value. The range is the collection of the ordered pairs' second coordinates. Never list the same output more than once.

What is a domain?

The domain of the function is defined as the set of all the possible values of the function. A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.

Determine the input values first. The first coordinate in an ordered pair makes up the input value. Since the ordered pairs are just listed, there are no restrictions. The set of the ordered pairs' initial coordinates is known as the domain.

D={2,3,4,5,6}

Next, identify the output values. The output value is the second coordinate in an ordered pair. The range is the set of the second coordinates of the ordered pairs. Do not list the same output twice.

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Sports Report Organizer Explain Sport/Activity #1: Participate in the activity and write a complete paragraph about the sport you’ve chosen. Explain the movement skills necessary to perform the sport well, including how balance, posture, and weight transfer can contribute to success. Analyze your performance after you participate.

I already did one on basketball but I need a second one can someone pls help.

This is a health assignment but I'm putting it in the math section so more ppl see it since nobody answers health questions sadly :(

Answers

Answer:

46

Step-by-step explanation:

Simplify the expression 15 − 3(3a + b) + 5a − 6b.

Answers

Answer:

Step-by-step explanation:

the answer is -4, 9, and 15

solve for x: 8.7 = 5.22 + x

Answers

Answer:

3.48

Step-by-step explanation:

x = 3.48
i hope this helps!!!

Someone Help me PLS ...

Answers

Answer: Number 1 would be F

Number 2 would be C

Number 3 is D

Number 4 is B

Number 5 is A

Number 6 is E

Step-by-step explanation:

What is the product of 142 and 26?
A 168
B 192
C 3,692
D 8,520

Answers

The answer is c

Explanation- product =multiplication. 142 x26 = 3,692 when multiplied

Answer:

well the answer is 3692

Step-by-step explanation:

There are 14 apples and 26 oranges in a picnic basket. What percentage of the fruit in the basket is oranges?

Answers

Answer : 35. Explaination: Add the total apples and organges. That would be your 100 percent. Then multiply 14 • 100 : 1,400 . Divide 40 by 1,400 and it gives you : 35! Hope this helps :)

The percentage of oranges in the basket is 65%.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Number of oranges = 26

Number of apples = 14

The percentage of oranges.

= 26/40 x 100

= 65%

Thus,

There are 65% of oranges.

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Jacob drove a total of 15.235 miles over a 5-day period. How many miles did he drive each day if he drove the same distance each day?


3.047 miles

3.047 miles

3.407 miles

3.407 miles

30.047 miles

30.047 miles

30.407 miles

Answers

15.235=5x
x= miles per day
your answer would be 3.047 miles

Answer:

3.047

Step-by-step explanation:

[tex]\frac{miles}{days} \\ \\\frac{15.235}{5} = \frac{?}{1} \\[/tex]

When solving equations you multiply the denominator of one of the fractions by the others numerator. Here the available numerator is 15.235 and the others denominator is 1. This means that we do 15.235 times 1, which is equal to 15.235. The next step is to divide by the remaining denominator or numerator. Here the remaining denominator is 5. This means that we divide 15.235 by 5 which is equal to 3.074.

please help mehh
T^T

Answers

Imma try hold up give me a second
doing the math right now

Need help can’t get a bad gradeeeee

Answers

1. 12/24=6/12=2/4=1/2 so their dog sleeps 1 hour for every 2 hours
1 for ever 2 hours 1/2

Nick leaves his apartment and travels down two flights of stairs to get to the parking lot below ground level. Nick’s elevation, in feet, as it relates to time is represented by the sketch shown below.

Which statement best represents the three horizontal portions of the graph?




Nick's speed decreases.


Nick is moving but the elevation is constant.


Nick stopped but the elevation is decreasing.


Nick is moving at a constant rate as the elevation is decreasing.

Answers

Answer:

Nick’s speed decreases

Step-by-step explanation:

He’s not going at a steady speed, and his speed only decreases

The answer would be that nicks speed decreases.

if the scale factor is greater than 1...

A. the new image gets smaller
B. the new image gets larger
C. the new image stays the same

Answers

B. It gets larger

Have a good day

Answer:

B. the new image gets larger

Step-by-step explanation:

I think

helpppppppppppppppppppp pls

Answers

1. = 15
2. = -10
Don’t know the rest
1)a=15

2)p=-10


3.) Z=3


4)x=-17

Shoppers buy a 12 lb turkey for $15. They want to make a 35% profit on the sale/price of the turkey? how much is it then?

Answers

Answer:

$5.25

Step-by-step explanation:

35% of $15 is $5.25

5.25 since 15$ is 35% of 15$

someone please help me rn omg
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
The average daily maximum temperature in Syracuse is 21.85°C, and the average daily minimum temperature is -4.7°C. The average daily maximum temperature is
°C higher than the average daily minimum temperature.

Answers

I’m pretty sure what you have to do is subtract -4.7° from 21.85° so you’d get 26.55. Because -4.7 is a negative number, you’d get a difference that’s higher

this was last year:/ do you still know what the answer is?

Plz help me as soon as possible! Thank you

Answers

The second one :) because humans can’t produce their own food they have to buy/grow food

Answer:

Not all living things produce food. They usually need to find a source and take from it, like when animals are hunting.

So the answer is the second one.

A figure is graphed on a coordinate grid as shown.



The figure is rotated 180° clockwise with the origin as the center of rotation to create a new figure. Which rule describes this transformation?
(x, y) → (−x, −y)
(x, y) → (x, −y)
(x, y) → (−y , −x)
(x, y) → (−x, y)

Answers

Answer:

It’s the first one trust me

Step-by-step explanation:

The rule for the transformation of the figure is rotated 180° clockwise with the origin as the center of rotation to create a new figure is,

⇒ (x, y) → (- x, - y)

What is Translation?

A transformation that occurs when a figure is moved from one location to another location without changing its size or shape is called translation.

Given that;

The figure is rotated 180° clockwise with the origin as the center of rotation to create a new figure.

Now,

We know that;

The rule for the transformation of the figure is rotated 180° clockwise with the origin as the center of rotation is,

⇒ (x, y) → (- x, - y)

Therefore, The rule for the transformation of the figure is rotated 180° clockwise with the origin as the center of rotation to create a new figure is,

⇒ (x, y) → (- x, - y)

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how to solve 5 + 5 x 5 -5 ÷ 5

Answers

Answer:

25? to be honest i really dont know :/

Step-by-step explanation:

um pemdas says 5x5 is 25 so 5+(25)-5/5 then you do -5/5 is -1 and thats 5+(25)-5 then you add 5 to 25 and thats 30 and minus 5 is 25

BIDMAS
-5 divided by 5 = -1
5x5=25
5+25-1= 29
ANSWER = 29

Is the sequence arithmetic, geometric or neither? Then, find the next three terms. 0, 3, 6, 9, 12, ___, ___, ____.

Answers

Answer:

15,18,21

like that?

Step-by-step explanation:

Answer
15,18,21, arithmetic

hope this helps and have a wonderful day :)

What is X/2 + 1 = 7?

Answers

Answer:

x=12

Step-by-step explanation:

subtract one from both sides then multiply both sides by two

please mark brainliest

last brainliest if u get this right :D

Answers

Answer:

B

Step-by-step explanation:

Geneva is 12 degrees celsius colder than her hometown, and on the graph we can see that Geneva is -3 degrees celsius, so -3 + 12 = 9, so it's San Francisco which is 9 degrees celsius.

It’s b he is right guys

what should I do right now you decide

Answers

Answer:

run

Step-by-step explanation:

Chris types at an average speed of 45 words per minute. He has already typed 1,500 words of his final paper. The paper has to be more than 3,750 words. Which of the following inequalities could be used to solve for x, the number of minutes it will take Chris to finish his paper? ANSWER CHOICES I COMMENTS

Answers

Answer: C

Step-by-step explanation:

It’s the only one that uses all info given and says the number of words must be greater than 3,750

write the numerical expression. The difference between 8 forty-sevens and 7 forty-sevens. Write your answer with no spaces.

Answers

Answer:

47(8)-47(7)

Step-by-step explanation:

Answer:

Hope this helps! :)

Step-by-step explanation:

47(8)-47(7)

Give brainiest if you would like :)

Shona is bunding magazines to recycle. He notices that 6 magazine weight 5/8 pound in all and that the magazines all weight the same amount. What is the unit rate per magazine?

Answers

Answer:

0.75

Step-by-step explanation:

Divide them

Answer:

.104 pounds im garbage with fractions if thats what u need sorry

Step-by-step explanation:

What is the equation of the line that has a slope of m = 2 and passes through the point (-5, -6)?

Answers

Answer:

[tex]y=2x+4[/tex]

Step-by-step explanation:

You can solve this two ways: insert the values into point-slope form and simplify to solve for y, converting it to slope-intercept form, or insert the values into slope-intercept form, solve for b, and insert b. We'll do both :)

Point-slope form:

[tex]y-y_{1}=m(x-x_{1})[/tex]

Where:

[tex]m[/tex] is the slope[tex]x_{1}[/tex] and [tex]y_{1}[/tex] are corresponding coordinate points [tex](x,y)[/tex]

Insert the given values:

[tex]m=2\\\\(-5_{x_{1}},-6_{y_{1}})\\\\y-(-6)=2(x-(-5))\\\\y+6=2(x+5)[/tex]

Solve for y. Expand the right sie using the distributive property:

[tex]y+6=2(x)+2(5)\\\\y+6=2x+10[/tex]

Isolate the variable. Subtract 6 from both sides, canceling out the 6 on the left:

[tex]y+6-6=2x+10-6\\\\y=2x+4[/tex]

OR

Slope-intercept form:

[tex]y=mx+b[/tex]

Where:

[tex]m[/tex] is the slope[tex]b[/tex] is the y-intercept[tex]x[/tex] and [tex]y[/tex] are corresponding coordinate points [tex](x,y)[/tex]

Insert the given values:

[tex]m=2\\\\(-5_{x},-6_{y})\\\\-6=2(-5)+b[/tex]

Simplify the multiplication:

[tex]-6=-10+b[/tex]

Solve for b. Add 10 to both sides, canceling out the 10 on the right:

[tex]-6+10=-10+10+b\\\\4=b[/tex]

The value of b is 4. Insert the appropriate information into the equation. When using slope-intercept form, you don't plug in the coordinate points:

[tex]y=2x+4[/tex]

:Done

HELP PLS
ada has a new puppy that weighs 9 pounds. It is now at about 20% of its adult weight. Here is a diagram that Jada drew about the weight of her puppy. The adult weight of the puppy will be 45 pounds. How can you see that in the diagram

Answers

9x5=45 (the max)

If the puppy was to turn into an adult the diagram would be fully colored in (100%).

Answer: There are 5 boxes all labeled 9. Each box is 20%.

Step-by-step explanation:

If you take this equation: 20%*a(adult weight)=n(new puppy weight) and plug in the values, the equation would be 20%*45=9. You can check that the equation is correct by multiplying 0.2*45 which will equal 9. The five boxes are all 20% and there are 5 20%'s in 100%.

Hope this helps! :)

Please help I will give Brainliest: What is the distance between
(-7.4, 2.4) and (2.7, 2.4)?

Answers

The distiance between them is 10.1

Answer:

10.1 I believe .

Step-by-step explanation:

If u do 2.4-2.4 and 2.7 -7.4 the slope equals 10.1 so the slope is the distance

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