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
serg [7]
3 years ago
13

Boling water is considered as​

Chemistry
1 answer:
professor190 [17]3 years ago
4 0

Answer:Boiling water is a physical change, as it rearranges molecules but does not affect the internal structures. Boiling water forces the water molecules away from each other as the liquid changes to vapor. In a chemical change, new chemical substances are created or formed. Advertisement. Physical changes affect the state of an item, and a chemical change happens at a molecular level.

Explanation:

hope it helps:))

You might be interested in
Suppose you used 0.5 M NaOH to titrate your vinegar sample instead of 0.1 M. What effect does the concentration of base added ha
laiz [17]

Answer: the reliability will be worse

Explanation:

Suppose we used 0.5 M NaOH to titrate our vinegar sample instead of 0.1 M.

Now by using 0.5M instead of 0.1M we are increasing the concentration of NaOH,

We know that  the moles used = Volume x concnetration.

so for the same no of moles, if the concentration increases, the volume decreases.

Hence it will consume less NaOH.

now Since the volume decreases, the titration volume of less number will increase the % error.

Therefore the reliability will be worse.      

4 0
2 years ago
Which one of the following statements is true?
sergij07 [2.7K]

Answer:

A calculator has an endifiite shape because all of its atoms are touching each other

8 0
3 years ago
a student prepares a dilute solution of sodium hydroxidem, NaOH (aq), starting with 6 M sodium hydroxide. She then titrates a 1.
Serjik [45]

Answer:

M = 0.3077 M

Explanation:

As I said in the comments, you are missing the required volume of the base to react with the KHP. I found this on another site, and the volume it used was 21.84 mL.

Now, KHP is a compound often used to standarize NaOH or KOH solutions. This is because it contains a mole ratio of 1:1 with the base, so it's pretty easy to use and standarize any base.

Now, as we are using an acid base titration, the general expression to use when a acid base titration reach the equivalence point would be:

n₁ = n₂   (1)

This, of course, if the mole ratio is 1:1. In the case of KHP and NaOH it is.

Now, we also know that moles can be expressed like this:

n = M * V   (2)

And according to this, we are given the volume of base and the required mass of KHP. So, if we want to know the concentration of the base, we need to get the moles of the KHP, because in the equivalence point, these moles are the same moles of base.

The reported molar mass of KHP is 204.22 g/mol, so the moles are:

n = 1.372 / 204.22 = 6.72x10⁻³ moles

Now, we will use expression (2) to get the concentration of the diluted base:

n = M * V

M = n / V

M = 6.72x10⁻³ / 0.02184

M NaOH = 0.3077 M

This is the concentration of the dilute solution of NaOH

3 0
3 years ago
Which of the following statements is true concerning what happens when cold milk is poured into hot coffee?
liraira [26]

Answer:

The cold milk transfers its cold to the coffee, cooling the coffee down.

Hope This Helps!

6 0
3 years ago
Read 2 more answers
Nemistry I sem
GaryK [48]

Answer:

A

Explanation:

BF3 has a trigonal planar shape.

XeO3 has a trigonal pyramidal shape.

3 0
2 years ago
Other questions:
  • Determine the vapor pressure (atm) of rubbing alcohol (isopropanol) at 20.0 °C. The normal boiling point of isopropanol is 82.3
    8·1 answer
  • PLEASE HELP!!!! Which is a correct statement of Newton's second law? Question 1 options: Every action has an equal and opposite
    6·2 answers
  • Use the table to identify the phase and phase changes of the elements under the given conditions. Write the name of the substanc
    15·2 answers
  • What is the answer to this because I'm clueless?
    13·1 answer
  • Using table 9.4, calculate an approximate enthalpy (in kj) for the reaction of 1.02 g gaseous methanol (ch3oh) in excess molecul
    7·1 answer
  • You have 125.0mL of a solution of H3PO4, but you don't know its concentration. If you titrate the solution with a 4.56M solution
    7·1 answer
  • Students were asked to place a mint in their mouths and determine how long it took for the mint to dissolve. The
    9·1 answer
  • A) what is hydrogen's carrying capacity? <br> b) what is lithium’s carrying capacity?
    6·1 answer
  • Cell membranes are selectively permeable. This means that A. only water can move freely across the cell membrane. B. any substan
    11·1 answer
  • Can someone do this for me i wasent there when we learned it
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!