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
Phoenix [80]
3 years ago
9

Cobalt chloride Select one: a. Does not exist as a hydrate b. Forms a single hydrate which may be pink or blue c. Forms differen

t hydrates which have different colors d. Is colorless in the presence of water
Chemistry
1 answer:
Anarel [89]3 years ago
4 0

Answer:

c. Forms different hydrates which have different colors

Explanation:

You might be interested in
What happens when an electron moves from the first energy level to the second?
Olin [163]
Hello.

Energy is absorbed by the atom.

Emission lines occur only in the case of transitions from higher to lower energy levels in which energy is emitted.

Have a nice day
5 0
3 years ago
What is the symbol for voltage?<br><br> A. p<br> B. V<br> C. I<br> D. v
torisob [31]

V represent volt which is the symbol of voltage.

5 0
3 years ago
How many hydrogen atoms are contained in 167 grams of propane?
Dmitry_Shevchenko [17]

Propane is C3H8

So Molar mass propane = 3*12 + 8*1 = 44 <span>
No. of moles of propane = 167/44 = 3.795 moles</span>

From the stoichiometry: <span>
No. of moles of hydrogen = 3.795 moles * (8 moles hydrogen / 1 mole propane) = 30.36 moles 

Using Avogadros number, 1 mole of any substance contains 6.022 x 10^23 atoms, therefore: 
<span>No. of hydrogen atoms = 30.36 * 6.022 x 10^23 = 1.828 x 10^25 atoms</span></span>
4 0
2 years ago
Riya rides his bike 63 miles in 270 minutes. What is his average speed in miles per hour? Be sure to include the equation for sp
antoniya [11.8K]
Time t=270 minutes=270/60=9/2 hours
distance s=63 miles
average speed v=s/t=63 ÷\frac{9}{2}
=63×\frac{2}{9}
=14 miles/hour
6 0
3 years ago
Which of the following is true concerning redox reactions? A. Double-replacement reactions are always redox reactions. B. Single
Rasek [7]
The question to your answer is Single replacement reactions may 6e redox
5 0
3 years ago
Read 2 more answers
Other questions:
  • A chemistry student needs of 65 gr acetyl bromide for an experiment. She has available 20 g of 38.1 % a w/w solution of acetyl b
    7·1 answer
  • An (blank) is an abbreviation for the name of an element and usualy has eighter one or two letters
    14·1 answer
  • You have an evacuated container of fixed volume and known mass and introduce a known mass of a gas sample. measuring the pressur
    13·1 answer
  • What type of energy does a rock resting on top of a hill have?
    13·2 answers
  • Hugh described two substances which participate in photosynthesis.
    9·1 answer
  • Can someone help its not hard. What are the cons of using a cup made of plastic?
    5·1 answer
  • What is the ratio of the volume of oxygen gas to the
    13·1 answer
  • Can someone please help me out !!!
    9·1 answer
  • Based on this information, do you think that the mole should be considered a base unit in the Sl system? Explain why or why not.
    5·1 answer
  • Ughhh ughh ughhhh<br><br><br><br><br><br><br>helppp​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!