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
Kay [80]
3 years ago
10

Multiple Choice. For each statement, circle the correct answer.

Chemistry
1 answer:
kumpel [21]3 years ago
4 0
Tataattatataaggagahahah( to answer it)



9. A
10. C
You might be interested in
What do an electron and a neutron have in common?
zmey [24]
What an electron and a neutron have in common is that <u>each particle exists inside an atom,</u>
Atoms consist of three particles: protons (which are positively charged), electrons (which are negatively charged), and neutrons (which have no charge). 
4 0
4 years ago
Read 2 more answers
Two substances A and B react with each other in such a way that one-half of A remains after 25 min and one-fourth of A remains a
juin [17]

Answer:

a. first-order in both A and B.

Explanation:

In order to determine the kinetics of reaction let us consider the given data

a) Doubling the concentration of B while keeping the concentration of A fixed doubles the rate of the reaction. : it means the reaction is first order reaction with respect to reactant B.

b) The half life is the time required to complete the reaction by half way.

As with time one half of A remains and after equal time one fourth of A remains it means again the order of reaction is first with respect to A also.

There is no effect on the half life if we are decreasing the initial concentration of A also.

3 0
3 years ago
If you reacted 183 grams of copper sulfate with excess iron, what mass of copper would you expect to make? You may need to balan
Nezavi [6.7K]

The question does not provide the equation

Answer:-

72.89 grams

Explanation:-

The balanced chemical equation for this reaction is

CuSO4 + Fe --> FeSO4 + Cu

Molecular weight of CuSO4 = 63.55 x 1 + 32 x 1 + 16 x 4

= 159.55 gram

Atomic weight of Cu = 63.55 gram.

According to the balanced chemical equation

1 CuSO4 gives 1 Cu

∴159.55 gram of CuSO4 would give 63.55 gram of Cu.

183 gram of CuSO4 would give 63.55 x 183 / 159.55

= 72.89 grams of Cu

7 0
4 years ago
What are the 5 steps that a star will go through to try<br> to maintain equilibrium?
BigorU [14]

Answer:

1.Nuclear fusion.

2.Out of fuel.

3.Fusion stops temperature drops.

4.Core contracts (gravity pulling atoms in).

5.Increased temperature (more atoms, more collisions) and density in the core reinitiates nuclear fusion, equilibrium is achieved, and the cycle begins again at step 1.

Explanation:

5 0
3 years ago
Can someone please help me with this asap, it’s due today please help me
hammer [34]

Answer:

lol I hate chemical but let me give some advice

Explanation:

Please go on Khan Academy or look at your notes and I promise you can figure out! Seriously, I am trying to be helpful not like the annoying teacher that says "figure it out"

7 0
3 years ago
Other questions:
  • A covalent bond in which each atom contributes two electrons is a _____.
    15·1 answer
  • The action of some commercial drain cleaners is based on the following reaction:
    14·1 answer
  • What is the rate equation for iodine clock reaction.
    5·1 answer
  • Which step in the free-radical chlorination of methane do you expect to be the most exothermic? attempt this problem without loo
    5·1 answer
  • The Earth's Equator goes. Through the center of earth..True or False
    7·1 answer
  • At the energy-generating station, the coal is burned. Burning
    10·1 answer
  • The driver of an 1,840 kg race car applies the brake to come to a complete stop. If the car
    14·1 answer
  • Used to release stored energy during<br> respiration
    10·1 answer
  • A pharmacist mixed some 10%-saline solution with some 15%-saline solution obtain 100 mL of a 12%-saline solution. How much of th
    6·1 answer
  • Atomic number of Silicon..​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!