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
mylen [45]
3 years ago
8

A 120.5 g sample of water loses -7525 J of energy. What was the

Chemistry
1 answer:
dusya [7]3 years ago
5 0

Answer:14.93

Explanation:heat gained=heat lost

120.5 ×4.184×change=7525

7525÷504.172

Ans14.925

You might be interested in
What is one reason why rock layers are not horizontal?
lawyer [7]
B)a force pushed the rock layers after they were formed
6 0
3 years ago
Read 2 more answers
A particular state of matter has atoms that are packed closely together and vibrating in fixed positions. A phase change occurs
creativ13 [48]

Answer:

it goes to a solid to a liquid

Explanation:

When something is a solid the molecules are impact together and have a small sense of vibration. But as the solid melts away for example ice, the molecules become more loose forming into a liquid

5 0
3 years ago
Read 2 more answers
What is the molar mass of nitrogen?
sukhopar [10]
The molar mass of nitrogen is 14.0067amu or just 14amu.
4 0
3 years ago
Please help me out i will give you brainlist. 0.500 is wrong
Alik [6]
<h3>Answer:  b) 0.250 mol</h3>

============================================

Work Shown:

Using the periodic table, we see that

  • 1 mole of carbon = 12 grams
  • 1 mole of oxygen = 16 grams

These are approximations and these values are often found underneath the atomic symbol. For example, the atomic weight listed under carbon is roughly 12.011 grams. I'm rounding to 2 sig figs in those numbers listed above.

So 1 mole of CO2 is approximately 12+2*16 = 44 grams. The 2 is there since we have 2 oxygens attached to the carbon atom.

-------------------

Since 1 mole of CO2 is 44 grams, we can use that to convert from grams to moles.

11.0 grams of CO2 = (11.0 grams)*(1 mol/44 g) = (11.0/44) mol = 0.250 mol of CO2

In short,

11.0 grams of CO2 = 0.250 mol of CO2

This is approximate.

We don't need to use any of the information in the table.

3 0
3 years ago
Read 2 more answers
How does the troposphere protect the earth?
Usimov [2.4K]
The troposphere protect the molecules because there are higher layers on top. This makes life possible on Earth.
4 0
3 years ago
Other questions:
  • Elabora un texto escrito en el que explica las funciones principales del sistema nervioso y como responde a los estímulos extern
    12·1 answer
  • Complete the tables of value for four aqueous solutions at 25 celcius
    5·2 answers
  • Which family on the periodic table has a filled outer energy level?
    8·1 answer
  • What is a group of atoms bonded together
    10·2 answers
  • What is the best example of an experimental scientific investigation?
    11·1 answer
  • Protons and neutrons strongly attract when they
    13·1 answer
  • Craig needs to organize, analyze, and interpret large amounts of quantitative data that he generated during an experiment. Which
    13·1 answer
  • Which two notations represent isotopes of the same element?
    15·1 answer
  • What happens if the earth was with no water on the surface?
    6·2 answers
  • Aqueous solutions of ammonium sulfide and potassium hydroxide are mixed. Precipitate:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!