H2SO4 + 2NH4OH → (NH4)2SO4 + 2HOH Which of these would be the BEST description of this reaction? A) reduction B) combustion C) n
2 answers:
Answer: C) neutralization
Explanation:
A. Reduction is a type of chemical reaction in which substance is made to gain electrons or gain hydrogen.
Example:
B. Combustion is a type of chemical reaction in which fuel is reacted with oxygen to form carbon dioxide and water.
Example:
C. Neutralization reaction is defined as the chemical reaction in which an acid reacts with a base to produce a salt and water molecule.
D. Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.
Example:
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Answer:
The correct option is;
X, W, Y, Z
Explanation:
The parameters given are;
Spring (S), Spring Constant (N/m)
W, 24
X, 35
Y, 22
Z, 15
The equation for elastic potential energy, , is
The above equation can also be written as
Where:
k = The spring constant in (N/m)
x = The spring extension
Therefore, since the elastic potential energy, , of the spring is directly proportional to the spring constant, k, we have the springs with higher spring constant will have higher elastic potential energy,
, therefore the correct order is as follows;
X > W > Y > Z