Fission and Fusion of Atomic Nuclei:Please help! 26 points
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1. What happens in a chain reaction?
A) Products that start a new reaction are released.
B) Reactants that have two parts split
C) Products that are radioactive are lost
D) Radioactive reactants are deposited on control rods
2. Which type of coolant(s) usually is (are) used to remove heat from nuclear reactor core?
A) water only
B) liquid sodium only
C) liquid sodium or water
D) CFCs
3. A reaction that results in the combining of smaller atomic nuclei is ___.
A) chemical
B) fission
C) fussion
D) ionization
4. What does neutron absorption accomplish in a nuclear reactor?
A) It slows down the reaction.
B) It speeds up the reaction
C) It increases the rate of heat absorption
D) It recycles the fuel
Answers
Answer:
C B A D
Explanation:
Related Questions
Conductivity in a metal results from the metal atoms having(1) high electronegativity(2) high ionization energy(3) highly mobile protons in the nucleus(4) highly mobile electrons in the valence shell
Solutions of lead(II) nitrate and potassium iodide were combined in a test tube.Write a net ionic equation for the reaction between lead(II) nitrate andpotassium iodide.
What is produced when an acid reacts with a metal?a. Salt and hydrogen c. Water and base b. Carbon and salt d. Carbon dioxide and water
Acid rain has a higher than normal pH. a. True b. False
Answers
The reaction: Mg(s) + 2 AgNO3(aq) → Mg(NO3)2(aq) + 2 Ag(s) is represents - single replacement reaction.
A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution. Magnesium can easily lose electrons as compared to silver and result in the formation of magnesium nitrate and silver.
- A double displacement reaction is a chemical reaction in which ion exchange takes place.
- A synthesis reaction is a chemical reaction in which two reactants combine to give a single product.
- Decomposition is a chemical reaction in which one substance decomposes to give two or more than two products.
Thus, the reaction represents - single replacement reaction.
Learn more about double displacement reaction:
reaction is : single replacement
hope this helps!
Answers
A. newton
B. pound
C. kilogram
D. watt
Answers
Answer:
Newton
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revolution
rotation
universal gravitation
Answers
Answer:
retrograde motion
Explanation:
All the planets have direct motion or progade motion i.e. they move in eastward direction around the Sun. The exceptions are Venus and Uranus which apparently move westwards. This is type of motion is known as retrograde motion. Venus and Uranus move opposite to the other planets motion against the background of stars.
Answer:
retrograde motion
Explanation:
Answers
n=4
P=5.6 atm
V=12 L
R=0.08206 L atm mol-1 K-1
T=?
So, if you plug it in, you will get:-
T=PV/nR
T=(5.6 atm)(12 L)/(4 mol)(0.08206 L atm mol-1 K-1)
T=204.73 K
Hope I'm right! :)
Answer:
PV=nRT
Explanation:
T=PV/nR
P=5.6atm n= 4 mol V=12 L R =.082Latm/K mol
T= (5.6 atm)(12 L)/(4 mol)(.082Latm/K mol)
T = 205 K = -68 C
Answers
Answer:
1.31moles
Explanation:
Given parameters:
Mass of CuO₂ = 125g
Unknown:
Number of moles = ?
Solution:
To solve this problem, we use the expression below:
Number of moles =
Molar mass of CuO₂ = 63.6 + 2(16) = 95.6g/mol
So;
Number of moles = = 1.31moles