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
Goshia [24]
3 years ago
13

Is MELTING ICE endothermic or exothermic?

Chemistry
1 answer:
Lemur [1.5K]3 years ago
5 0
Endothermic you can see this by putting a thermometer in a glass or warm water, adding an ice cube and watching the temperature go down as the ice melts
You might be interested in
A student has a mixture of salt (NaCl) and sugar (C12H22O11). To determine the percentage, the student measures out 5.84 grams o
julsineya [31]

Answer:

The volume of 1.0 AgNO₃ that would be required to precipitate 5.84 grams of NaCl is 99.93 ml

Explanation:

Here we have the reaction of AgNO₃ and NaCl as follows;

AgNO₃(aq) + NaCl(aq)→ AgCl(s) + NaNO₃(aq)

Therefore, one mole of silver nitrate, AgNO₃, reacts with one mole of sodium chloride, NaCl, to produce one mole of silver choride, AgCl, and one mole of sodium nitrate, NaNO₃,

Therefore, since 5.84 grams of NaCl which is 58.44 g/mol, contains

Number \, of \, moles, n  = \frac{Mass}{Molar \ mass} =  \frac{5.84}{58.44} = 0.09993 \ moles \ of \ NaCl

0.09993 moles of NaCl will react with 0.09993 moles of AgNO₃

Also, as 1.0 M solution of AgNO₃ contains 1 mole per 1 liter or 1000 mL, therefore, the volume of AgNO₃ that will contain 0.09993 moles is given as follows;

0.09993 × 1 Liter/mole= 0.09993 L = 99.93 mL

Therefore, the volume of 1.0 AgNO₃ that would be required to precipitate 5.84 grams of NaCl is 99.93 ml.

3 0
3 years ago
What are two ways to describe concentration? How do they differ from one another?
adell [148]

Answer:

no .........................

3 0
3 years ago
Read 2 more answers
Question 7
chubhunter [2.5K]
This answer is D or c
5 0
2 years ago
Iteams in house made of thermosetting plastics?
Law Incorporation [45]
Thermoplastics and thermosetting polymers Examples include: polyethylene (PS) and polyvinyl choline (PVC). Common thermoplastics range from 20,000 to 50,000 amu, while thermosets are assumed to have infinite molecular weight.
3 0
3 years ago
What volume of 12.0 M sulfuric acid is needed to prepare 300.0 mL of 2.50 M solution?
Zepler [3.9K]

Answer:

n=c*V

=2.50*300x10^-3

=.75 moles of hcl

v=n/c

=.75/12

=.0625 L

convert to mL

=62.5mL

4 0
3 years ago
Other questions:
  • State one advantage of using solar energy instead of burning fossil fuels to produce thermal energy for your home
    13·1 answer
  • Ice (H2O) melting at 273 K and 1 atm has = 6.01 kJ/mol and = 6.01 kJ/mol while water vaporizing under the same conditions has =
    7·1 answer
  • Predict at least two circumstances that would cause a system in equilibrium to change the concentrations of its reactants and pr
    13·1 answer
  • Consider this equilibrium: COCl2(g) CO(g) + Cl2(g) Keq = 8.1 x 10-4. What is true for this system? [COCl2] < [CO][Cl2] [COCl2
    6·2 answers
  • n the laboratory, two forms of sodium phosphate will be available (the monobasic monohydrate NaH2PO4·H2O, F.W. = 137.99 g/mol, a
    8·1 answer
  • 10 moles of hydrogen are allowded to react with 6 moles of oxygen .How much water molecules are obtained?
    15·1 answer
  • How are two atoms of the same element alike?
    10·1 answer
  • Name the region of the atom where protons and neutrons are located.
    11·1 answer
  • Determine the number of atoms in 73.0 grams of calcium, Ca. (The
    15·1 answer
  • How can noble gas electron configuration be achieved?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!