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
Korvikt [17]
3 years ago
10

If you heated 2.5 kg of water using 100 kcal of energy, then what would be the temperature increase of the water (degrees C)? 25

0 degrees C
Chemistry
1 answer:
iris [78.8K]3 years ago
5 0

Answer:

40°C.

Explanation:

A calorie is defined as the amount of energy needed to raise the temperature of 1 gram of water through 1 °C. In the same way, a kcal would be defined as the amount of energy needed to raise the temperature of 1 kilogram of water through 1 °C.

Based on this definition, 100kcal will increase the emperature of the water in:

100kcal / 2,5kg = <em>40°C</em>

<em></em>

I hope it helps!

You might be interested in
Particles of light are known as​
Mashcka [7]

HEY DEAR..

The particles of light known as photon.

HOPE ITS HELPFULL

6 0
3 years ago
Read 2 more answers
What is the percent by mass of carbon in acetone, c 3 h 6 o?
Tatiana [17]
In the problem, we are tasked to solved for the amount of carbon (C) in the acetone having a molecular formula of C 3 H 6 O. We need to find first the molecular weight if Carbon (C), Hydrogen (H), Oxygen (O).

Molecular Weight:
C=12 g/mol
H=1 g/mol
O=16 g/mol

To calculate for the percent by mass of acetone, we assume 1 mol of acetone.
%C=( \frac{3(12 g/mol)}{3(12 g/mol)+6(1 g/mol)+16 g/mol} ) x 100%
%C=62.07%
Therefore, the percent by mass of carbon in acetone is 62.07%
5 0
3 years ago
Read 2 more answers
When bases dissolve in water they release what type of negative ion?
Leto [7]
A base generally releases a hydroxide ion (OH-) when dissolved in water. 

There are exceptions, such as ammonia NH3, which acts as a base but does not produce OH- ions. There are three definitions of acids and bases (Arrhenius, Bronsted-Lowry, and Lewis) and each one looks at acid/base characteristics differently. OH- donation is the Arrhenius definition.
4 0
4 years ago
Sodium bicarbonate is the chemical name for baking soda.Its chemical formula is NaHCO3.What does the subscript 3 mean?
prisoha [69]

Answer:

3 moles of Oxygen

Explanation:

The chemical formula of a compound is a representation which shows all the elements therein and the mole relationship between them expressed as subscripts.

   NaHCO₃  implies:

      1 mole of baking soda contains:

     1 mole of Na

     1 mole of Hydrogen

     1 mole of carbon

  And 3 moles of Oxygen

5 0
3 years ago
What happens when soluble fiber is mixed with water?
storchak [24]

Answer:

Soluble fiber attracts water and turns to gel during digestion. This slows digestion. Soluble fiber is found in oat bran, barley, nuts, seeds, beans, lentils, peas, and some fruits and vegetables. It is also found in psyllium, a common fiber supplement.:

6 0
3 years ago
Other questions:
  • Convert: 20.9 mL = ___L<br> 2.09<br> 0.209<br> 0.0209<br> 209<br> 20.9
    11·1 answer
  • Salt is added to water. You speed up dissolving by stirring the salt into the water. Then your teacher challenges you to separat
    11·2 answers
  • An empty 3.00 l bottle weighs 1.70 kg. filled with a certain wine, it weighs 4.72 kg. the wine contains 11.5% ethyl alcohol, c2h
    12·1 answer
  • Naturally occurring copper exists in two isotopic forms: 63Cu and 65Cu. The atomic mass of copper is 63.55 amu. What is the appr
    5·1 answer
  • Calculate the theoretical yield of aspirin obtained when 2.0 g of salicylic acid and 5.0 mL of acetic anhydride (density = 1.08
    12·1 answer
  • How are the three beams on a triple beam balance different
    7·1 answer
  • Attempt 1
    7·1 answer
  • What is the kinetic energy of a 3kg ball that is rolling at 2 meters per second
    12·1 answer
  • Convert 381 km to cm using dimensional analysis.
    12·1 answer
  • Can somebody help me wit dis?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!