Mathematics Middle School

The following table shows the chemical makeup of one mole (a unit of measure commonly used in chemistry) of acetone and the approximate mass of a mole of each compound element.

If a chemist start with 1,800 grams of acetone and used up 930 grams, approximately how many moles of carbon are left? Round your answer to the nearest whole mole.

The Following Table Shows The Chemical Makeup Of One Mole (a Unit Of Measure Commonly Used In Chemistry)

Answers

Answer 1

Answer:

Yes

Step-by-step explanation:

Si

Related Questions

please answer this!

Answers

7 people came back on the motorbike

Answer:

11

Step-by-step explanation:

Subtract 27 by 12 to figure out how many rode in canoes. Then divide by 3 for each canoe which means that there are 4 canoes. On return trip, there are 16 people riding in canoes because there are 4 per canoe, which means that 27 people in total - 16 people in canoes is 11 people riding the motorboat on the way back.

I need help, please help me!!

Answers

Answer: exactly

Step-by-step explanation:

Answer:
x = -2 ; y = -8
x = -1 ; y = -1
x = 0 ; y = 0
x = 1 ; y = 1
x = 2 ; y = 8

Explanation:
Multiply each number (x) 3 times to the exponent (3)
Example: x = 2 (2 • 2 • 2 = 8)

Determine if each equation is linear or nonlinear.

Answers

Answer: Linear, Linear, Nonlinear, Linear

Step-by-step explanation:

Any equation for y where x is lacking an exponent is a LINEAR function.

Choice 3, when distributing 4x with x, produces 4x^2.

Thus, that is the only one not linear here (it is quadratic instead)

Hope this helps

MM

What is the order pair of the Outlier?

(-3,5)

(-2,3)

(x,y)

(5,-3)

Answers

Answer:

(5,-3)

Step-by-step explanation:

as you can see if you start from the origin and go sideways you end up at 5 in quadrant 4 then go down 3 and that is -3 since quadrant 4 is (+,-), (5,-3) also is separate from all the other points, all the other points are in quadrant 2.

X Goes to the right or Left and Y goes up or down and X goes first

NEED HELP ASAP

Identify the constant of proportionality.

Answers

Answer: 10

Step-by-step explanation:

The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. 

So,

Let's take every point of the graph, than apply the equation.

When y is 10:

k = 10/1

When y is 20:

k = 20/2

When y is 30:

k = 30/3

When y is 40:

k = 40/4

When y is 50

k= 50/5

EVERY TIME, the answer is 10, take any point when this line graph is enlarged, the point on the line, are always going to be 10.

When y is (10) , then, x is 1 (as the point is in the x axis = 1

When y is (20), then, x is 2 (as the point is in the x axis = 2

.........

Make my answer the brainliest, if you are satisfied with my answer!

please hellpppp meeeeeee

Answers

Answer:

p = 21d

Step-by-step explanation:

If Arnold reads an average of 21 pages a day, and the number of days is represented by d, then the number of pages he reads after a number of days is p = 21d

The answer would be P=21+d.

Part 1 - Application
The local botanical garden is setting up for a special event called "Music Mondays." They expect to have 100 people show up to the event and want to make sure that they have enough room for that many chairs. The first row has 8 chairs in it and each new row adds four chairs. How many chairs would be on the 5th row? Would 5 rows be enough to accommodate the 100 people?

Answers

Answer:

there will be 84 chairs which is not enough for 100 people.

Step-by-step explanation:

8+(8+4)=20, 20+(12+4)=36, 36+(16+4)=56 and 56+(20+4)=84 chairs.

Jonathan measured 2 cups of flour into a bowl on the counter. Than he spilled part of it, now there is 3/8 left. how much did he spill?

Answers

Answer:2 cups was our starting point and we were left with 3/8 cups left after he spilled it, we are looking to find how much he spilled.

We could start by making 2 into a fraction so we could minus 3/8 easily.

2 = 16/8 (Two wholes is 16 eights.)

Now solve like a regular subtraction equation.

16/8 - 3/8 = 13/8

Our answer is 13/8 which simplified as a mixed fraction is 1 5/8

We lost 1 and 5/8 cups.

Step-by-step explanation:

Answer:

1 and 5/8 cups

Step-by-step explanation:

The perimeter of the quadrilateral is 12 meters. What is the length of the unlabeled side? 2 m 5 cm 3 m 4 m

Answers

Based on the given conditions, formulate:

12/4

Then just simplify. So your answer would be 3.

Hope this helps!

please answer this!

Answers

Answer:

i would say Wednesday

Step-by-step explanation:

Answer:

I think its Wednesday

Please help ASAP! I attached a screenshot.

Answers

Answer:B,C

Step-by-step explanation:

6/9=2/3=18/27=30/54

Answer: 18/27

: that’s the only one I know sorry

A summary of an informational text includes ________, the central idea, relevant key details, and a closing thought or statement.

a personal story about the topic
feelings about the topic
opinions about the text
the title and author of the text

Answers

Answer:

4

Step-by-step explanation:

Estimate the following sum by clustering.

14.2 + 15.51 + 14.99 + 15.8
Quick

40
60
100
80

Answers

the estimated answer is 60

Answer

Step-by-step explanation:

14.2+15.51=29.71+14.99=44.7+15.8=60.5

AroundAroundAround 60

Identify the unit rate in each equation. Then, order the equations by unit rate, from least to greatest.

Equation A Equation B Equation C Equation D
3x=4y y=4x x=4y 4x=3y

Answers

Answer:y=10

Step-by-step explanation:

It’s b because I took the quiz

Please heeeeeeelp Im confuzzeld

Answers

The answer is 8(2x+7y) because the common factor is 8

Answer: 8(2x+7y)

Step-by-step explanation:

Factorisation here, in equation basically means, to put it into brackets.

Step 1 :

First we have to look for if anything is common, and there is! We can do the GCF of both numbers, the answer we will get will be out of the brackets.

GCF of 16 and 56 is 8

Step 2 =

No we do this =

8 x what is 16x? 2x

8 x what is 56y? 7y

so we got this = 8( 2x+7y)

So the final answer is 8(2x+7y)

Make the answer the brainliest, if you are satisfied with it!

Part 3 - Discussion Question
Will an exponential function always exceed a linear function? Explain your answer and provide examples to support your claim.

Answers

Answer:

Yes

Step-by-step explanation:

It will always pass because it will keep on going, while a linear function may stop.

(Identifying Functions MC)

The graph represents a relation where x represents the independent variable and y represents the dependent variable.

a coordinate plane with points at negative 5 comma 1, negative 2 comma 0, 0 comma 2, 1 comma negative 2, 3 comma 3, and 5 comma 1

What is the domain of the relation?

{−2, 0, 1, 3}
{−2, 0, 1, 2, 3}
{−5, −2, 0, 1, 3, 5}
{−5, −2, 0, 1, 2, 3, 5}

Answers

Answer: D([-5, -2, 0, 1, 2, 3, 5])

Step-by-step explanation: What is Domain?

Domain is the complete set of possible values of the input(x) of a function or relation. This shows all possible x-values!

Hope this helps!

Find the value of 3x3 + 4x2 + x - 5 when x = -3.


(A) -53 (B) -71 (C) -32
I really can't think right now.

Answers

Answer:

15

Step-by-step explanation:

3x3 + 4x2 + -3 - 5

9 + 8 + -2 or 9 + 8 - 2

17 + -2 or 17 - 2 = 15

the answer to this problem would be 15

HELP 16 POINT GIVEN
even one extra one!

Answers

Answer:

2.8 is greater than 2.58 because 2.8 is closer to 3 on a number line.

Answer:

C or 2.8 is greater than 2.58 because 2.8 is closer to 3 on a number line.

Please help, I need this right now...
Question:
Analisa recorded 83º, 87º, 90º, and 78º as the highest temperatures in her city for the month of October. She calculated a mean of 84.5º and a median of 85º for these temperatures. Which statement would describe the changes in the mean and the median if a temperature of 76º was then added to her list?
Options:
1. The mean would increase.
2. The median would increase.
3. The mean and median would both increase.
4. The mean and median would both decrease.

Answers

Step-by-step explanation:

The correct answer is option 3: The mean and median would both increase.

Answer:

3. The mean and the median would both increase.

Step-by-step explanation:

SHOW THINKING OR EXPLAIN WHY U CHOSE ANSWER
The dot plots below show rainfall totals in the Highlands and Lowlands areas of a certain region.


2 dot plots. One plot is titled Highlands, and the second plot is titled Lowlands. The peak rainfall for the Highlands is 16 and 18, and the peak for the lowlands is 12.


When comparing the two sets of data, which is a true statement?

There are gaps in both sets of data.

The ranges are the same.

The two sets of data do not overlap.

The rainfall peaks at a lower value in the Lowlands.

Answers

Answer: The two sets of data do not overlap.

HURRY HELP EASY QUESTION WILL MARK BEANLIES IF CORRCT!! . NO SILLY ANSWERS OR I WILL REPORT What is this number in standard form?


(4×100)+(1×10)+(3×110)+(5×11,000)


Enter your answer in the box.

Answers

Answer:

55,740

Step-by-step explanation:

(4x100) = 400, (1x10) = 10, (3x110) = 330, and (5x11,000) = 55,000. If you add all of these together, you will get 55,740 which is your final answer.

Each student in Ms. Karam’s science class uses one of the 20 lab stations for experiments. Ms. Karam lets students choose their own lab station. Gloria is the first in the class to choose a station for her work. José then chooses a lab station. Are the students’ choices dependent or independent? Explain in words how you determined your answer.

Answers

the students are independent because they choose, on their own, what stations they want to do their work at. I hope this helped

add v to 5, then add 2 to the result

Answers

(v + 5) + 2 = v + 7 is the answer.

V+7 is the answer because you add (v+5)+2= v+7

The following table shows the chemical makeup of one mole (a unit of measure commonly used in chemistry) of acetone and the approximate mass of a mole of each compound element.

Oxygen makes up what percent of the mass of one mole of acetone? Round to the nearest whole percent.

Answers

Answer:

55%

Step-by-step explanation:

You add all the grams and divide 16

16/29=0.551

then the nearest whole percent would be

55%

Scott has 25 counters. He gives 10 of the counters to Alex. a) What fraction of the 25 counters does Alex get? Give your answer in its simplest form. b) What fraction of the 25 counters does Scott have now? Give your answer in its simplest form.

Answers

Answer: a) Alex gets 10 counters out of 25, so the fraction of the counters he gets can be expressed as 10/25. To simplify this fraction, we can divide both the numerator and the denominator by their greatest common divisor, which is 5:

10/25 ÷ 5/5 = 2/5

So, Alex gets 2/5 of the 25 counters.

b) After giving 10 counters to Alex, Scott has 25 - 10 = 15 counters left. So, the fraction of the 25 counters that Scott has now can be expressed as 15/25:

15/25 ÷ 5/5 = 3/5

So, Scott now has 3/5 of the 25 counters.

Step-by-step explanation:

Answer:

Step-by-step explanation:

a) The counters that are in Alex= 10

  The Fraction of 25 counters is = 10%25

  Hence, the fraction of counters does Alex get is 2/5

b) Let the number of counters does Scott have = 25-10 =15

  The fraction of 25 counters is = 15%25

  Hence, the fraction of counters does Scott get is 3/5

 

1.The final angle measures are the same as the original angle measures. tue or false

2.The final side lengths are shorter than the original side lengths. true or false

3.The original figure and the final figure may not be congruent. true or false

4.If two sides are parallel in the original figure, then those sides may not be parallel in the final figure. true or false

Answers

Answer:

1.true

2.false

3.false

true

Which expression models what is being described?

3 is taken away from the product of 4 and 5

Answers

Answer: 4 x 5 - 3 = 17

Step-by-step explanation:

product is multiplication. 4 x 5 = 20

taken away is subtraction. 20 - 3 = 17

Therefore the answer  of is 4 x 5 - 3 = 17

Julia has £32 She gives £24 to Rhianna.
a) What fraction of the £32 does Rhianna get? Give your answer in its simplest form.
b) What fraction of the £32 does Julia have now? Give your answer in its simplest form.

Answers

Answer:3/4

Step-by-step explanation: 8x3 = 24

8x4=32

8x1=8      1/4

8x2=16    2/4

8x3=24   3/4

8x4=32    4/4 = 1

Keiko used the distributive property to write an expression that is equivalent to 2(x + 4). She then drew the model below to explain her answer. What expression did Keiko write? How does the model show an equivalent expression?

Answers

12
2x4 and then that equals 8 and u just add 4 again
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