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
Pavel [41]
3 years ago
14

Which of the following claims may be made based on your observations? (You will recieve negative points for wrong answers.)

Chemistry
1 answer:
Ostrovityanka [42]3 years ago
8 0

Answer:

D, E and F

Explanation:

About tetrachloro cobalt complexes, the following facts have been observed  

  • Color of the tetrachloro cobalt complexes is blue.
  • They do not decompose on heating that means synthesis of tetra chloro is endothermic.

About hexa aqua cobalt complexes, the following facts have been observed  

  • Color of the hexa aqua cobalt complexes is pink color.
  • They decompose on heating and remain stable on cooling that means process of synthesis of hexa aqua cobalt complexes is exothermic.

Based on above, the correct statements are:

The correct is chloro cobalt complex is blue and aqua cobalt  

complex is pink.  

The chloro complex is favored by heating.

If the chloro complex is a product, then the reaction must be endothermic.

The correct options are D, E and F.

You might be interested in
Summary of a trade-off between. Potential and kinetic energy
uranmaximum [27]
Simply put, Potential energy is the "build up". If I had a ball on the top a 5ft slide, it would have potential energy, as long as it hasn't slid down yet.

If I had another ball on a 10ft slide, it would have twice the potential energy the first ball had.

What comes next is kinetic energy, which is the energy used when the object is moving, like the ball as it goes down the slide. The faster it moves, the more kinetic energy. 

Basically, <em>Potential</em> is the "build up" but it does not, I repeat does not move.

<em>Kinetic</em> energy is the use of the "build up" through movement.
<span>
</span>
7 0
4 years ago
What would the total mass of a 4.9 mole sample of Barium (Ba) be if its Molar Mass is 137g?
Aleksandr-060686 [28]

Answer:

m = 671 grams

Explanation:

Given that,

No of moles, n = 4.9

Molar mass of Barium, M = 137 g

Mass divided by molar mass is equal to no of moles. It can be given by the formula as follows :

n=\dfrac{m}{M}\\\\m=n\times M\\\\m=4.9\times 137\\\\m=671.3\ g

or

m = 671 grams

So, the total mass of the sample of Barium is 671 grams.

8 0
3 years ago
In nature, 1.07% of the atoms in a carbon sample are C-13 atoms. Show a numerical setup for calculating the number of C-13 atoms
Vera_Pavlovna [14]
If we let x be the number of sample which contains the atoms of carbon (C). Given that according to study, the amount of atoms in carbon sample that are C-13 atoms is 1.07%, the mathematical set-up that would represent the sample is,
                               = (0.0107)(C)

6 0
4 years ago
Hhhhhhheeeeeeelllllllppppppppppp
zimovet [89]

Answer:

the answer is C hope I helped

3 0
3 years ago
Read 2 more answers
Why are measurements important for science?<br> Give two reasons.<br> Please help meeee :(
stepladder [879]

Answer:

-Being in the service of quality, safety, designing and problem solving.

-It plays an importnat part in our lives too, to measure any surface, object, etc.

Explanation:

Measurement is perhaps one of the most fundamental concepts in science. Without the ability to measure, it would be difficult for scientists to conduct experiments or form theories.

4 0
3 years ago
Other questions:
  • An ionic bond is formed between a cation A1 and an anion B2. How would the energy of the ionic bond [see Equation (9.2)] be affe
    15·1 answer
  • An enzyme can catalyze a reaction with either of two substrates, S1 or S2. The Km for S1 was found to be 2.0 mM, and the Km, for
    9·1 answer
  • Which element has the same number of energy levels as aluminum (Al) and the same number of valence electrons as calcium (Ca)?
    11·2 answers
  • What is the mass number for an atom with 5 protons 6 neutrons and 5 electrons
    10·1 answer
  • What principle requires that a chemical equation be balanced?
    13·1 answer
  • What is molar concept​
    6·1 answer
  • 1. How many grams would 8.1 x 1021 molecules of sucrose (C12H22011)<br> weigh?
    5·1 answer
  • You are given and irregular shaped lump of a material and determine that it has a mass of 36.0000 g. When placed in a graduated
    15·1 answer
  • What is titanium's melting point?
    6·1 answer
  • I NEED HELP WITH THESE! PLEASEEE
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!