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
Aleks04 [339]
3 years ago
10

A hydrate of CoCl2 with a mass of 6.00 g is heated strongly. After cooling, the mass of the anhydrate is 3.27 g.

Chemistry
1 answer:
ivann1987 [24]3 years ago
5 0
A hydrate is a substance that contains water or its constituent elements. When this substance is heated, water is evaporated leaving an unhydrate. From this sample, the amount of water present would be equal to 2.73 g. Hope this answers the question. Have a nice day.
You might be interested in
At what points does the object accelerate please explain
nirvana33 [79]

Answer:

M=3

B=25

Equation= 3x+25

Explanation:

M is your slope and if you follow the slope- intercept formula (y=m+b) you just need to plug in the numbers.

Thus your answer:

M=3

B=25

Equation= 3x+25

8 0
2 years ago
Can someone pls give me the answer to this question?
Svetllana [295]

Answer:

D

Explanation:

5 0
3 years ago
What is the second step in the classification of living things?
Leya [2.2K]
I'll go with B, have a good day
6 0
3 years ago
Read 2 more answers
____ KClO3-----> ____ KCl + ____O3
djyliett [7]

Answer:

explain what need to be done here pls? what do you need?

Explanation:

6 0
2 years ago
Read 2 more answers
An atom of chlorine with a mass number of 37 contains __ protons and __ neutrons.
Natasha2012 [34]

Answer:

Its in the Explanation

Explanation:

Here's what I got.

Aluminium-27 is an isotope of aluminium characterized by the fact that is has a mass number equal to  

27

.

Now, an atom's mass number tells you the total number of protons and of neutrons that atom has in its nucleus. Since you're dealing with an isotope of aluminum, it follows that this atom must have the exact same number of protons in its nucleus.

The number of protons an atom has in its nucleus is given by the atomic number. A quick looks in the periodic table will show that aluminum has an atomic number equal to  

13

.

This means that any atom that is an isotope of aluminum will have  

13

protons in its nucleus.

Since you're dealing with a neutral atom, the number of electrons that surround the nucleus must be equal to the number of protons found in the nucleus.

Therefore, the aluminium-27 isotope will have  

13

electrons surrounding its nucleus.

Finally, use the known mass number to determine how many neutrons you have

mass number

=

no. of protons

+

no. of neutrons

no. of neutrons = 27 − 13 = 14

Your welcome :)

6 0
3 years ago
Other questions:
  • Write the complete ionic equation and the Net ionic equation for: K2C2O4(aq)+Pb(OH)2(aq) -> 2KOH(aq)+PbC2O4(s)
    12·1 answer
  • The periodic table shows that a carbon atom has six protons. This means that a carbon atom also has...
    10·2 answers
  • In your double replacement reaction, the more reactive metal "pushed" the other one out of its place. Without using the Internet
    12·1 answer
  • What did Robert Millikan discover?
    8·1 answer
  • Can anyone give the ans<br><br><br><br><br><br><br><br>please<br><br><br><br><br><br>...​
    11·1 answer
  • What is another name for the galvanic cell?
    15·2 answers
  • If a neutral atom has 5 protons (+) and 5 neutrons (0), how many electrons does it have?
    10·1 answer
  • A fuse is a safety device that stops the flow of electricity when a circuit overheats
    13·1 answer
  • What is the mole fraction of NaBr in
    6·1 answer
  • 1. A train travels North at 103 km/h. Is this an example of speed, velocity, or acceleration. speed velocity accelleration​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!