1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erastovalidia [21]
2 years ago
7

Which statement most accurately describes what happens when a bar of chocolate melts? A. A physical change takes place that caus

es molecules to move slower. B. A physical change takes place that causes molecules to move faster. C. A chemical change takes place that causes molecules to move faster. D. A chemical change takes place that causes molecules to move slower.
Mathematics
1 answer:
wariber [46]2 years ago
5 0

Answer:

(B). A physical change takes place that causes molecules to move faster

Step-by-step explanation:

When a bar of chocolate melts its physical form is changed, there is no difference in its chemical composition as it is still same.

When the chocolate bar was frozen its molecules were held strongly, and they were barely moving, whereas when it melts the molecules are more free to move now.

You might be interested in
A skier is trying to decide wether or not to buy a season ski pass. A daily pass costs $79. A season ski pass costs $400. The sk
True [87]

Answer:

Step-by-step explanation:

to buy a monthly pass

7 0
2 years ago
Read 2 more answers
Please help !!!!!!!!!!!!
zhannawk [14.2K]

Answer:

25+40

Step-by-step explanation:

for the area of a triangle you multiple the base times the height. for the area of the square it is the length times width.

NOTE: to completely answer just add 25+40

6 0
3 years ago
140% out of what gives 56
Verizon [17]


140 / 100 * X = 56

X = 56 * 100 / 140 = 5600 / 140 = 40

4 0
3 years ago
Read 2 more answers
Geometry Helps please<br> (Only correct Answers only please) Thanks!
nlexa [21]

Answer:

301.44 cubic units

Step-by-step explanation:

volume \: of \: cone \\ \\   =  \frac{1}{3}\pi {r}^{2}  h \\  \\  =  \frac{1}{3}  \times 3.14 \times  {(6)}^{2}  \times 8 \\  \\  = \frac{1}{3}  \times 3.14 \times 36 \times 8  \\  \\  = 3.14 \times 12 \times 8 \\   \\ = 301.44 \:  {units}^{3}  \\  \\  \red{ \bold{volume \: of \: cone = 301.44 \:  {units}^{3}}}

7 0
3 years ago
What is the area of a sector with a central angle of (2pi/3) radians and a diameter of 12 in?
Stels [109]

Answer:

The area of the sector is 37.68\ in^{2}

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is equal to

A=\pi r^{2}

we have

r=12/2=6\ in ----> the radius is half the diameter

substitute

A=(3.14)(6)^{2}

A=113.04\ in^{2}

step 2

Find the area of a sector with a central angle of (2pi/3)

Remember that

The area of 113.04\ in^{2} subtends a central angle of 2\pi \ radians

so

by proportion

Let

x----> the area of the sector

\frac{2\pi}{113.04}=\frac{(2\pi/3)}{x}\\ \\x=113.04*(2\pi/3)/(2\pi)\\ \\x=37.68\ in^{2}

8 0
3 years ago
Other questions:
  • 10 POINTS!
    6·1 answer
  • PLZ NEED HELP QUESTION IN THE PICUTRE
    13·1 answer
  • 4.
    8·1 answer
  • Use an algebraic equation to find the measures of the two angles described below. Begin by letting x represent the degree measur
    6·1 answer
  • Ms. Johnson’s class running a food drive . The 20 students collected 180 cans .
    6·1 answer
  • What equals 44 in multiplication?
    6·1 answer
  • Which of the the following fractions is not equivalent to 1/4
    11·1 answer
  • The weight of 10 identical samples of a substance is 0.01 pound. what is the weight of 10000 samples?
    9·1 answer
  • Find the solution of this system of equations<br> 4x - 5y = -12<br> -X + 5y = 18
    12·1 answer
  • If £2000 is placed into a bank account that pays 3% compound interest per year,
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!