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
ollegr [7]
3 years ago
12

Consider the heating curve for water. A graph of the heating curve for water has time in minutes on the horizontal axis and Temp

erature in degrees Celsius on the vertical axis. A line runs through the following points: 0 minutes, negative 20 degrees; 0.5 minutes, 0 degrees; 2 minutes, 0 degrees; 4 minutes, 100 degrees; 8 minutes, 100 degrees; 9.5 minutes, 160 degrees. At what temperature does the solid start melting? –20°C 0°C 20°C 80°C

Chemistry
1 answer:
Zolol [24]3 years ago
4 0

Answer:

0°C.

Explanation:

Hello,

In this case, given the heating curve of water on the attached document, we can notice that at 0 °C the solid starts melting, which means that the melting point is reached. Melting point is known as a physical change whereby a solid changes to liquid by the addition of heat as it allows the molecules to separate to each other.

Best regards.

You might be interested in
I dont understand and this question hard well for me
Murrr4er [49]
A
"The heat from the hot chocolate will travel to the spoon"
4 0
2 years ago
Read 2 more answers
Which of these outdoor activities would you most likely participate in during the winter?
Elza [17]

Answer:

D.

Explanation:

Translation:

A. make a barbecue

B. organize a picnic

C. swimming in the pool

D. to go skiing

Barbecue is usually a summer activity, so we eliminate that.

It would be too cold for a picnic!

It would be too cold to go swimming, and that's more of a summer thing!

Skiing is a snow activity, and since it is winter, it is likely to know.

4 0
3 years ago
NaCl+AgC2H3O2--&gt; NaC2H3O2+AgCl <br><br><br> what is this balanced
Westkost [7]

Answer:

It is already balanced equation

3 0
2 years ago
Who is generally credited with developing the process of using heat?
galina1969 [7]

Answer:

Robert Boyle

Explanation:

I think it's that

6 0
2 years ago
47.0ml of a HBr solution were titrated with 37.5ml of a 0.215M LiOH solution to reach the equivalence point. what is the molarit
faltersainse [42]

Hello!

The molarity of the HBr solution is 0,172 M.

Why?

The neutralization reaction between LiOH and HBr is the following:

HBr(aq) + LiOH(aq) → LiBr(aq) + H₂O(l)

To solve this exercise, we are going to apply the common titration equation:

M1*V1=M2*V2

M1=\frac{M2*V2}{V1}= \frac{0,215 M * 37,5 mL}{47 mL}=0,172 M

Have a nice day!

4 0
3 years ago
Other questions:
  • What are particles of carbon otherwise known as, and what kind of pollution do they cause???
    15·2 answers
  • How many neutrons are in an atom with atomic number of 53 and mass number of 127?
    8·1 answer
  • The standard heat of formation for solid copper is zero. True False
    5·1 answer
  • If an object is thrown 60 m into the air and it takes the object 6 s to get there, what's the average speed of the object?
    13·2 answers
  • Hydrogen gas can be produced by reacting aluminum with sulfuric acid. how many moles of sulfuric acid are needed to completely r
    13·2 answers
  • Which sample is a pure substance?
    15·2 answers
  • All of these properties are for alkali metals except one
    12·1 answer
  • How many milliliters of an aqueous solution of 0.193 M potassium carbonate is needed to
    10·1 answer
  • What is the variable for the quantity of heat in a system?
    8·1 answer
  • What would be the observation when pineapple juice is dipped in a red litmus paper​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!