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
harkovskaia [24]
3 years ago
5

Pls solve.............................................

Chemistry
1 answer:
monitta3 years ago
7 0

Answer:

Element A is pottassium an alkali metal

Element B is a noble gas

Element C is bromine I think which is a halogen

Element D is lithium I think...or some other from group 2 or 1

You might be interested in
What must be conserved in a balanced nuclear equation?
Law Incorporation [45]
There is nothing conserved<span> in this reaction. When writing a β </span>equation<span>, remember that in the nucleus, a neutron ( n ) decays into a proton ( p+ ) and a high energy electron which is known as the beta ( β ) particle. Because a new proton has formed, the atomic number of the original atom will increase by 1</span>
5 0
4 years ago
It is the balance between thermal energy and intermolecular forces that determines the state of matter of any substance at room
ExtremeBDS [4]

Answer:

The correct option is;

2) Thermal energy increases by a factor of R

Explanation:

The equipartition energy theorem states that when molecules are in a state of thermal equilibrium, particles within the system posses equal average energy with each degree of freedom which can be known as energy due to a state of having a particular temperature or thermal energy given by the relation

E_{th} = Kinetic energy of translation + Kinetic energy of rotation + Energy of vibration

For a mono-atomic gas, E_{th} = 3/2·n·R·T

For a diatomic gas, E_{th} = 5/2·n·R·T

For a solid element, E_{th} = 3·n·R·T

Therefore, as the temperature is doubled, the thermal energy increases by a factor of R.

5 0
3 years ago
In the haber process the forward reaction is exothermic so logically lower temperature increase yield.However 200C is actually u
goblinko [34]

Answer:

It may seem sensible to use a very low temperature in order to maximise the yield of ammonia but lower temperatures reduce the rate of reaction.

Explanation:

5 0
3 years ago
Which solid is the most suitable in the space elevator cable
Tresset [83]
It should be Carbon Nanotubes
4 0
3 years ago
How is the Methane on Titan similar to water on Earth?
spin [16.1K]
Both in the phase of a liquid & has similar qualities like both molecules.
6 0
3 years ago
Read 2 more answers
Other questions:
  • A hot sun warms the surface of a lake on a calm day. What will happen to the cold water at the bottom of the lake?
    11·1 answer
  • I need to know the answers
    13·1 answer
  • Convert 3.45 g/ml to lb/in^3
    11·1 answer
  • 100.0 grams of sucrose (C12H22O11)is dissolved in 1.50 L of water. What is the molality?
    7·1 answer
  • What are some examples of matter?
    13·2 answers
  • For this ionic compound, what would be the name of the anion? Ca(NO3)2
    15·2 answers
  • What gives the gem amethyst its purplish color?
    13·1 answer
  • The picture represents sulfur trioxide.
    6·1 answer
  • Which is the odd one brass,copper, aluminum,iton , sapphire​
    5·2 answers
  • The reader can infer from the article that __________.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!