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
ira [324]
3 years ago
9

Please help me I will give you the brain thing and extra points. image below part

Chemistry
2 answers:
Sholpan [36]3 years ago
4 0

Answer:

The answer is D, when H2S gas is bubbled into a lead acetate soulution, a precipitate forms

Explanation:

This is because a physical change is when it changes but doesn't turn into a new substance. A chemical change is when it transforms into a completly new substance.  Hope this helps!!! :)

jekas [21]3 years ago
3 0
D is the correct answer... if u need in depth let me know
You might be interested in
Select all that are true regarding stereoisomers,constitutional isomers, and conformational isomers
Tamiku [17]

Answer:To convert the model of one constitutional isomer to another constitutional isomer one needs to exchange 2 atoms/groups on different atoms.

To convert the model of one stereoisomer to another stereoisomer one needs to exchange 2 atoms/groups bonded to the same carbon.

To convert the model of one conformational isomer to another conformational isomer one only needs to rotate about single bond(s).

Explanation:

Constitutional isomers differ from each other in position of substituents. Hence if we interchange atoms or groups on two different atoms, we get constitutional isomers.

Stereo isomers posses different orientations in space. If two atoms or groups on the same carbon atoms interchange their spatial orientation, we have a different stereoisomer other than the original structure.

Conformers arise by free rotation across single bonds. Different conformers can be created by rotating single bonds.

8 0
3 years ago
Who made the first periodic table
ale4655 [162]
The other dude is rude wrong

The correct answer is Dmitri Mendeleev
8 0
3 years ago
What’s the answer for number 2?
Lady bird [3.3K]
The answer to this is surface wave i think
4 0
4 years ago
Read 2 more answers
What is the answer to this?
Vesnalui [34]

Answer:

spring

Explanation:

cause i just took le test U-U

5 0
3 years ago
For the reaction 2A(g) â B(g), the equilibrium constant is Kp = 0.76. A reaction mixture initially contains 4.0 atm of gas (PA =
timofeeve [1]

Answer: (a) The reaction mixture will proceed toward products.

Explanation:

Equilibrium constant is defined as the ratio of pressure of products to the pressure of reactants each raised to the power their stoichiometric ratios. It is expressed as K_p

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For the given chemical reaction:

2A(g)\rightleftharpoons B(g)

The expression for Q_p is written as:

Q_p=\frac{p_B}{(p_A)^2}

Q_p=\frac{(2.0)}{(2.0)^2}

Q_p=0.5

K_p=0.76

Thus as K_p>Q_p , the reaction will shift towards the right i.e. towards the product side.

7 0
3 years ago
Other questions:
  • Apply Concepts Why do most tall
    6·1 answer
  • You are asked to bring the pH of 0.500L of 0.550 M NH4Cl to 7.00. Which of the following solutions would you use: 12.0 M HCl or
    13·1 answer
  • a student balanced the chemical equation for the reaction of magnesium with oxygen by writing Mg + O2 ----> MgO2. What is wro
    12·1 answer
  • ______and_____are examples of pure substances.
    8·1 answer
  • In France, grapes are 1.75 Euros per kilogram. What is the cost of grapes in dollars per pound if the exchange rate is 1.36 doll
    13·1 answer
  • 18. An electric motor turns a belt that powers a pump. If this system is compared to the chemical reactions of the cell, which p
    15·1 answer
  • What will happen if pressure is increased on the system?
    7·1 answer
  • I NEED HELP PLEASE, THANKS!
    12·1 answer
  • Which of these mixtures could be most easily seperate by filtaration?
    11·1 answer
  • Atoms of oxygen have a total of 8 electrons. Are these atoms stable, and why or why not?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!