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
laila [671]
3 years ago
15

Question 3 (2 points)

Chemistry
1 answer:
Mademuasel [1]3 years ago
4 0

Answer:sksk

Explanation:sksk

You might be interested in
What happens to the speed of motion of the particles of a gas when a certain volume of the gas is heated at constant pressure? E
Likurg_2 [28]

Answer:

As the gas is heated, the particles will begin to move faster. ... Because the gas remains at a constant pressure and volume, the particles cannot spread out so they simply move around the container even faster.

4 0
3 years ago
Think of an everyday situation in which two objects interact and exert a force on each other. Explain how the interaction can ca
blondinia [14]

Answer:

It's explained below.

Explanation:

An everyday situation is when we raise an object.

Now, when we raise an object, energy is transferred to the Earth object system and thus the gravitational field energy of the system will increase.

Now, this energy is usually released when the object falls. The mechanism of this release is known as gravitational force.

In the same manner, two magnetic and electrically charged objects that are interacting at a distance will exert forces on each other and this can lead to transfer of energy between the interacting objects.

6 0
3 years ago
You have a 5-liter container with 1.30×10^24 molecules of ammonia gas (NH3) at STP.
givi [52]

Answer:answer is C

Explanation:

3 0
3 years ago
Read 2 more answers
The acid-dissociation constant of hydrocyanic acid (hcn) at 25.0 °c is 4.9 ⋅ 10−10. what is the ph of an aqueous solution of 0.0
vodomira [7]
According to the reaction equation:

and by using ICE table:

              CN-  + H2O ↔ HCN  + OH- 

initial  0.08                        0          0

change -X                        +X          +X

Equ    (0.08-X)                    X            X

so from the equilibrium equation, we can get Ka expression

when Ka = [HCN] [OH-]/[CN-]

when Ka = Kw/Kb

               = (1 x 10^-14) / (4.9 x 10^-10)

               = 2 x 10^-5

So, by substitution:

2 x 10^-5 = X^2 / (0.08 - X)

X= 0.0013

∴ [OH] = X = 0.0013 

∴ POH = -㏒[OH]

            = -㏒0.0013

            = 2.886 

∴ PH = 14 - POH

         = 14 - 2.886 = 11.11
5 0
3 years ago
What happens when you drop iodine on a leaf?
insens350 [35]
When you drop iodine on a leaf you may observe a colour change of orange/brown to a blue/black complex.

This is because in the leaf there are starch molecules that form a blue/black complex with the starch molecules.

hope that helps :)
6 0
3 years ago
Other questions:
  • Calculate the mass, in grams, of a single xenon atom (mxe = 131.29 amu ).
    8·1 answer
  • PLEASE HELP ME IM SO LOST
    15·1 answer
  • Choose all the answers that apply.
    14·2 answers
  • You have three molecules of glucose (3C6H12O6). How many carbon atoms do you have?
    9·2 answers
  • .The chemical formula for table sugar is C12H11022. What can you tell from this formula?
    6·1 answer
  • A 125 mL bubble of hot gases at 213 ∘C and 1.77 atm is emitted from an active volcano. Part A What is the final temperature, in
    6·1 answer
  • A student makes several observations about a piece of iron. Which observation describes a chemical property of the iron?
    12·1 answer
  • A process that is a physical change.
    5·1 answer
  • What are the elements names for C9H8O4
    8·1 answer
  • the carbon canisters are about the size of a 55-gallon drum, how often would replacement be required?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!