How do u separate salt from rock salt?
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Related Questions
How can you tell isotopes of the same element apart?
A pitcher accelerates a baseball with a mass of 1.5 kg at 6m/s2. How much force does this take?
WILL GIVE BRAINLIEST FOR SURE!!!1. The atomic radius increases from top to bottom because more orbitals are added as you go down a group. Atomic radius decreases from left to right because there are more protons in each element as you go left to right, increasing the attractions between the protons and electrons, pulling the electrons in closer.a. Trueb. False
How are heterogeneous and homogeneous mixtures separated?
A. The temperature of a substance goes down as heat is added.
B. During a phase change, the temperature of a substance does not
change.
C. If heat is added to a substance, the temperature always
increases
D. The temperature of a substance is constant during a phase
change.
Answers
Answer:
Answer A is wrong
Explanation:
because the temperature increases as soon as the temperature increases
Hope it helps you
Final answer:
Statements A and C are both false. Adding heat to a substance typically causes its temperature to rise, but this is not the case during a phase change. During a phase change, a substance's temperature remains constant because the added heat goes into the phase transition.
Explanation:
In physics, understanding how heat energy affects the temperature and phase state of a substance is crucial. Out of the provided statements, option A and C are false.
A. The temperature of a substance goes down as heat is added - This is false. By default, adding heat to a substance causes its temperature to rise, unless a phase change is in progress.
C. If heat is added to a substance, the temperature always increases - This statement is also false. While it's true in many situations, during a phase change (for example, when ice is melting or water is boiling), adding heat does not raise the temperature. Instead, the energy goes into changing the phase of the substance.
Meanwhile, option B and D are correct. B. During a phase change, the temperature of a substance does not change, and D. The temperature of a substance is constant during a phase change - Both are true statements that reflect the same fact: during a phase change, any added heat goes into the phase transition, not into raising the temperature.
Learn more about Heat and phase changes here:
#SPJ12
#12
Answers
Answer:
B is the correct model of beryllium.
Explanation:
An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.
All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom while the number of protons are number of electrons is the atomic number of an atom.
For example in case of beryllium:
The atomic number of beryllium is 4.
The atomic mass is 9 amu.
Number protons = 4
Number of electrons = 4
Number of neutrons = 9-4 = 5
So b is correct answer because 5 neutrons and 4 protons are present with in nucleus while 4 electrons are present out side.
I believe your answer is B.
2. mass b. sum of all forces acting on an object
3. force c. tendency to resist a change in motion
4. unbalanced forces d. push or pull
5. balanced forces e. can change an objects motion
6. net force f. will not change an object's motion
Thank you!
Answers
2 A
3 D
4 F
5 E
6 B
These are the answers
revolutionary
B.
rotational
C.
periodical
D.
elliptical
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Answer:
the answer is D
Explanation:
trust me brudda
B.) Change in concentration of reactant
C.) Temperature
D.) Particle size
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The variables which can affect the speed of a chemical reaction are inihibitor, concentration, temperature and particle size.
What is the speed of reaction?
Speed of any reaction also known as rate of reaction and it gives idea about the duration that at how much time it will complete.
- Addition of inhibitor slows down the speed of the reaction as inhibitor blocks the activity of the reactants.
- Change in concentration of reactant also chnages the speed of the reaction because it completely depends on the reactant concentration.
- Temperature changes also affect the speed of the reaction as it changes the kinetic property of the reaction.
- Particle size provides the surface area to get react so changes in this property will also changes the speed of the reaction.
Hence all of the above will changes the speed of the reaction.
To know more about speed of reaction, visit the below link:
Your answer is B(I'm not very much sure about this one), C, and D.
I hope very much that I am correct, hope this helps you.
~Onyx~
from n = 2 to n = 3
from n = 1 to n = 2
Answers
Answer:
From n=1 to n=2
Explanation:
Electrons in n=1 are strongly attracted to the nucleus and therefore will require great force to overcome the electrostatic force of attraction to displace them from the energy level to another.
The electrostatic force reduces as you progress to the outer energy levels.
Answer:
C. from n = 1 to n = 2
Explanation:
A.
B.
C.