Hydrochloric acid and sodium hydroxide react to produce water and sodium chloride in an endothermic reaction. Which statement must be true of the reaction?(1 point)
Responses
More bond energy is absorbed on the reactants side than is released on the products side.
The total bond energy of water and sodium chloride is greater than the total bond energy of hydrochloric acid and sodium hydroxide.
The bond energy used to break the bonds in hydrochloric acid and sodium hydroxide is less than the energy released to form the bonds in water and sodium chloride.
The energy of each bond in water and sodium chloride is greater than the energy of each bond in hydrochloric acid and sodium hydroxide.
The bond energy used to break the bonds in hydrochloric acid and sodium hydroxide is less than the energy released to form the bonds in water and sodium chloride.
from now on when i give you the questions answer them in abc or d depending on what the answer is
first answer is a
second b
third c
fourth d
Understood, here are your answers:
1. a
2. b
3. d
4. c
Hydrochloric acid and sodium hydroxide react to produce water and sodium chloride in an endothermic reaction. Which statement must be true of the reaction?(1 point)
Responses
More bond energy is absorbed on the reactants side than is released on the products side.
The total bond energy of water and sodium chloride is greater than the total bond energy of hydrochloric acid and sodium hydroxide.
The bond energy used to break the bonds in hydrochloric acid and sodium hydroxide is less than the energy released to form the bonds in water and sodium chloride.
The energy of each bond in water and sodium chloride is greater than the energy of each bond in hydrochloric acid and sodium hydroxide.
The correct answer is:
The bond energy used to break the bonds in hydrochloric acid and sodium hydroxide is less than the energy released to form the bonds in water and sodium chloride. (c)
During a game of tug-of-war, two students are pulling on a rope. One student pulls to the left with a force of 35 N, while another student pulls to the right with a force of 35 N. What is the net force being applied to the rope, and in which direction will the rope move?(1 point)
Responses
35 N; the rope will move to the right
70 N; the rope will stay stationary
0 N; the rope will stay stationary
17.5 N; the rope will move up
The net force being applied to the rope is 0 N, and the rope will stay stationary. (c)
A rocket motor is used for different model rockets that have different masses. The results of tests for a rocket motor are shown in the table.
Mass (kg)
Acceleration (m/s2)
0.0900
157
0.1000
141
0.1132
124
Given the same amount of force, which conclusion is correct?
(1 point)
Responses
Mass and acceleration have a direct relationship.
Mass increases with acceleration.
Increased mass results in reduced acceleration.
Acceleration increases regardless of mass.
Increased mass results in reduced acceleration. (c)
Howard leans back against a wall with 50 N of force. According to Newton’s Third Law of Motion, what force is being applied and in what direction?(1 point)
Responses
The wall applies a force of 100 N in the same direction.
The wall applies a force of 50 N in the same direction.
The wall applies a force of 100 N in the opposite direction.
The wall applies a force of 50 N in the opposite direction.