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
Ad libitum [116K]
2 years ago
5

Chemical energy is released when molecular bonds are formed. True False

Chemistry
1 answer:
sveticcg [70]2 years ago
6 0
The answer is false
You might be interested in
Given the following reaction: 3CuCl2(aq) 2Na3PO4(aq) --> Cu3(PO4)2(s) 6NaCl(aq) MM (g/mol) 134.45 163.94 380.58 58.44 If 285
nata0808 [166]

Answer:

227.78g of the precipitate are produced

Explanation:

Based on the reaction, 3 moles of CuCl2 produce 1 mole of Cu3(PO4)2 (The precipitate).

To solve this question we need to find the moles of CuCl2 added. With these moles and the reactio we can find the moles of Cu3(PO4)2 and its mass as follows:

<em>Moles CuCl2:</em>

285mL = 0.285L * (6.3mol / L) = 1.7955 moles CuCl2

<em>Moles Cu3(PO4)2:</em>

1.7955 moles CuCl2 * (1mol Cu3(PO4)2 / 3mol CuCl2) = 0.5985 moles Cu3(PO4)2

<em>Mass Cu3(PO4)2 -380.58g/mol-</em>

0.5985 moles Cu3(PO4)2 * (380.58g/mol) =

227.78g of the precipitate are produced

7 0
3 years ago
if you can’t already tell by the amount of questions i do not understand chemistry lol, giving brainliest
Vladimir [108]

Answer:

Ok, so the process here is to convert the mass of H2 (hydrogen gas) to moles by dividing the mass by the molar mass of H2. Once you have the moles then you have to multiply by the STP (standard temperature and pressure) molar volume which should be 22.4.

Molar mass of H2 = (1.01)x2 = 2.02g/mol

19.3/2.02 = 9.55 moles

Now just multiply the moles by the molar volume

9.55 moles x 22.4 = 213.92 Litres of H2 are in 19.3g of H2

6 0
2 years ago
Which has a higher kinetic energy an object at 20° C or an object at 50°C
Simora [160]

Answer:

The object at 50°C will have a higher kinetic energy.

Explanation:

Temperature is a measure of the average kinetic energy of the particles in an object. As you introduce more energy into the system (e.g. heat the object), the particles on average move faster because they have more kinetic energy.

5 0
2 years ago
Hypothesize How much do you think an apple weighs?
umka2103 [35]

Answer: 3 pounds

Explanation:

8 0
2 years ago
Read 2 more answers
First to answer both CORRECTLY gets brainleist!
madam [21]

Answer: I am actually studying about Stars, so I got you.

3. As the temperature of a star Increases, it's luminosity increases.

As the temperature of a star decreases, it's luminosity decreases.

4. Hot and Bright. The bigger the star, the hotter it gets is from what I learned.

4 0
2 years ago
Read 2 more answers
Other questions:
  • Express the following concentration of solution in terms of molarity: 3.00 L of solution contains 1.75 mol of solute.
    5·1 answer
  • What is the acceleration due to gravity of the moon<br>​
    10·1 answer
  • Assuming there is not friction or air resistance, which of the following is true about total mechanical energy of a swinging pen
    5·1 answer
  • 2. Using the specific heat capacity value that you determined in Part II of the lab, what is the most probable identity of the u
    15·1 answer
  • Explain how paper chromatography could be used to separate a mixture of different coloured inks
    9·1 answer
  • What is heat of vaporization?
    8·1 answer
  • PLEASE HELP ME ANSWER
    12·1 answer
  • 20 points
    11·1 answer
  • Question 1 (1 point) Saved Please choose all that describe a series circuit. (If you did not attend live session and take notes,
    13·1 answer
  • What other substance (besides salt) could you sprinkle over ice to affect how fast it melts? Describe how you would test the sub
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!