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
melamori03 [73]
3 years ago
9

Potassium impart purple colour but beryllium do not impart any colour to the flame.Why?​

Chemistry
1 answer:
BaLLatris [955]3 years ago
6 0

Answer:

<h2>The electrons in beryllium and magnesium are too strongly bound to get excited by flame. Hence, these elements do not impart any color.</h2>
You might be interested in
Scandium 15. Write the nuclear symbol for an ion with a charge of +2,20 protons, and 24
Hoochie [10]
If the element has a charge of +2 it has lost two electrons giving it an overall positive charge making it a cation. In order to find the number of electrons, take the elements atomic number and subtract two since it lost two electrons
8 0
3 years ago
If I initially have a gas at a pressure of 12 kPa, a volume of 23 liters, and a temperature of 200 K, and then I raise the press
sertanlavr [38]

Answer:

The new volume of gas would be 30 L.

Explanation:

This is an example of a Combined Gas Laws problem.

5 0
3 years ago
you are holding a bowling ball with a mass of 6 kg at a height of 1 meter. How much gravitational potential energy does the bowl
Bumek [7]

The formula for GPE is PE=mgh, where “m” is the mass of the object, “g” is the acceleration due to gravity (~9.8 m/s^2 on Earth’s surface), and “h” is the height of the object from the ground. Therefore,

PE=mgh

PE=(6 kg)(9.8 m/s^2)(1 m)

PE=58.8 kg•m^2/s^2 or 58.8 Newtons

The GPE of the bowling ball under these conditions would be about 59 Newtons.

Hope this helps!

7 0
4 years ago
How would you test a colorless crystalline compound to determine if it was a hydrate?
Cloud [144]

A hydrate is a substance where in it contains water and other constituent elements. To know whether if that compound was a hydrate,you should record its mass, then put it in a test tube and heat it with a Bunsen burner. If the compound is a hydrate, the water in the compound will discharge in the form of water vapor. At the next 5-10 minutes, remove it in the test tube and weigh it up again. If the mass is now fewer, that means that there was water existing that has now evaporated, and the compound was a hydrate.

6 0
4 years ago
Every Sunday, Sarah prepares blue fruit punch to
MrRissso [65]

Answer:

Fruit punch with a very dark blue color

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is a isotope ?
    15·2 answers
  • el nitrogeno es un gas que se utiliza para conservar embriones,su temperatura es de -195,8ºc calcula esta temperatura en K y ºF
    6·1 answer
  • A The Haber process is typically carried out at a temperature of approximately 500∘C. What would happen to the rate of the forwa
    13·1 answer
  • The same baseball is thrown two different times The second throw is faster than the first throw.Which has more kinetic energy?
    6·1 answer
  • As you get closer to the boundary between two of the Earth's Plates what is most likely to happen to the intensity of the Earthq
    12·1 answer
  • Draw the products of Claisen condensation of (a) ethyl propanoate; (b) ethyl-3-methylbutanoate; (c) ethyl pentanoate. For each,
    15·1 answer
  • What are the 6 branches of chemistry? With the definition and examples.
    8·1 answer
  • What scientist use the scientific method to determine if cold was a substance?
    15·1 answer
  • Simple distillation experiment lab report
    10·1 answer
  • Why did the United States cut off trade and diplomatic relations with Cuba?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!