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
Nuetrik [128]
3 years ago
10

Enthalpy change is the

Chemistry
1 answer:
PtichkaEL [24]3 years ago
3 0

Answer:

I believe is A

Explanation:

Enthalpy change is the name given to the amount of heat evolved or absorbed in a reaction carried out at constant pressure.

You might be interested in
A helium balloon occupies a volume of 1.8 L at 5°C.<br>What volume will it occupy at 85.0°C?​
Zolol [24]
The volume of the balloon at 85.0°C would be 2.3L
5 0
3 years ago
Why are naturally occurring substances, such as particulates or carbon dioxide, sometimes considered pollutants?
____ [38]
Because despite being natural they still harm the ozone layer and cause breathing problems, even suffocation.
5 0
2 years ago
Read 2 more answers
How many minutes will it take to plate out 4.50 g of Cu from a solution of Cu(NO3)2 (aq) onto the cathode of an electrolytic cel
ipn [44]

Answer:

It will take 28.5 minutes

Explanation:

<u>Step 1: </u>Data given

Mass of Cu = 4.50 grams

8.00 A of current are used

Molar mass of Cu = 63.5 g/mol

Step 2: Calculate time needed

Cu2+ →Electricity → Cu

we notice a flow of 2 electrons ⇒ This means the Faraday constant = 2F

Since Molar mass of Cu is 63.5 g/mol

63.5 grams of Cu is deposited by 2*96500 C

4.50 grams of Cu ((2*96500)/63.5)  * 4.50 = 13677.17 C

Q = It

13677.17 = 8t*60 seconds

t = 28.5 minutes

3 0
3 years ago
What is the mass of 2.071x10^14 molecules of SF2
kolezko [41]

Answer:

Name of molecule Sulfur Difluoride ( SF2)

No of Valence Electrons in the molecule 20

Hybridization of SF2 sp3 hybridization

Bond Angles 98 degrees

Molecular Geometry of SF2 Bent

Explanation:

Sulfur Difluoride is an inorganic molecule made up of one Sulphur atom and two Fluorine atoms. It has a chemical formula of SF2 and can be generated by the reaction of Sulphur Dioxide and Potassium Fluoride or Mercury Fluoride. In this blog post, we will look at the Lewis dot structure of SF2, its molecular geometry and shape.

7 0
3 years ago
Write an interesting good presentation of acid and base​
aleksley [76]
<h2>★<u>Acid</u></h2>

  • these are sour in taste
  • corrosive in nature
  • the turn blue litmus to red when litmus paper is dipped into it
  • we also eat acids like citric acid in our daily life
<h2>★<u>Base</u></h2>

  • bitter in taste
  • soapy to touch
  • turn red litmus to Blue
  • we use bases like milk of magnesia and antacid in our daily life

Hope it helps u

5 0
3 years ago
Other questions:
  • Which of the following is the correct definition of chemical energy?
    11·2 answers
  • Name the following chemical compound. B2H6
    8·2 answers
  • The acid HOCl (hypochlorous acid) is produced by bubbling chlorine gas through a suspension of solid mercury(II) oxide particles
    15·1 answer
  • What is typically displayed on the y-axis of a solubility curve?
    8·1 answer
  • HELP PLEASE. 50 points!
    10·2 answers
  • Two students apply force to a box at rest on the floor.
    12·1 answer
  • What does the salinity of seawater represent?
    7·1 answer
  • HELP
    11·1 answer
  • As shown below, a hammer was placed into a graduated cylinder. What is the volume displacement of the hammer?
    13·1 answer
  • describe another medical condition or disease where the primary system causes a serious problem with a secondary system
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!