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
iragen [17]
3 years ago
12

How much heat will be given off when 1500 g of water cools down by 20 C? please help and explain:)))

Chemistry
1 answer:
docker41 [41]3 years ago
7 0

Answer:

126000J

Explanation:

From the question given, we obtained the following information:

M = 1500g

C = 4.2J/g°C

ΔT = 20°C

Q =?

Q= MCΔT

Q = 1500 x 4.2 x 20 =

Q = 126000J

You might be interested in
Which of the following is NOT a chemical reaction?
Damm [24]
Ice melting from water. Nothing has changed except the state of matter.
6 0
3 years ago
The differences between two molecules include the type of sugar that forms a section of the molecules and the identity of one of
klio [65]

The answer is nucleic acids

3 0
3 years ago
How is the moderm periodic table arranged?
ankoles [38]

Answer:

Explanation:

the elements are arranged according to their atomic number - not their relative atomic mass . In the periodic table the elements are arranged into: rows, called periods , in order of increasing atomic number. vertical columns, called groups , where the elements have similar properties

8 0
3 years ago
Malia was able to make a paperclip float on the surface of water. What will most likely happen to the paperclip if a drop of dis
Arturiano [62]

Answer:

Its A

Explanation:

I just took the test

5 0
3 years ago
Cracking the periodic table code why aren't the elements listed in alphabetical order answer key
finlep [7]

The elements in the periodice table are not listed in alphabetical order, because the arragement in rows (periods) and columns (groups or familes), in increasing order of atomic number (number of protons of the atoms) permits to explain similarities among the elements, trend in some properties, and even predict properties of unknown elements.


For example, the elements of the first group (family), called alkaline metals, all have 1 valence electron, have similar physical properties (ductibility, malleability, luster, thermal and electricity conductivity), react in similar way with water, show a trend in the atomic radii and in the ionization energy.


You can tell similar stories for other groups like, alkalyne earth metals, halogens and noble gases.


You can also tell trends in electroneativities, and atomic radii, for a row of elements, as per the order they are in the row.


So, the current array resulted very helpul for chemists to explain and predict the behavior and properties of the elements.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following pieces of laboratory equipment is not directly used to make measurements?
    14·2 answers
  • Which physical property of water best allows solutes dissolved in it to be separated using simple distillation?
    13·2 answers
  • Identify bohrs model of the atom. His model described the reactivity of an element based on its number of valence electrons.
    5·2 answers
  • A solution of pH 3 was mixed with a solution of pH 9. What is the final pH could be ?
    6·1 answer
  • The concentration of hydroxide ions in the antacid, milk of magnesia, is 5.3 × 10−4 M. Calculate the concentration of hydronium
    13·1 answer
  • A compound has the name iodine pentafluoride. What kind of bond is present between the atoms? A. O Metallic B Covalent C. Hydrog
    8·1 answer
  • What volume is occupied by 16.4 g of mercury? The density of mercury is 13.6 g/mL
    8·1 answer
  • Which of the following is NOT a way that thermal energy is transferred?
    11·1 answer
  • What is an extended structure? How do extended structures make up substances
    10·1 answer
  • How do charged molecules pass through the membrane.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!