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Agata [3.3K]
4 years ago
6

Which force acts an an object to move it from rest or a constant, straight-line motion?

Chemistry
1 answer:
maxonik [38]4 years ago
8 0

Answer:

C. Unbalanced

Explanation:

A force which can change the state of an object by changing it's speed, position or direction of motion is known as an unbalanced force. It is the resultant of all forces which are acting on a body and causing a change in the state of rest of motion of the body.

Assume a box is resting on the floor. The forces acting on the box in the rest are Normal (by the ground on the box) in upward direction and gravitational force Mg (due to gravity). Although these two forces are acting on the box, it is still in rest because these forces are balanced to each other. When we pull or push the box by applying appropriate force, the box will start to move because the force applied by us is unbalanced and there is no any force in the opposite direction to make this force balanced.

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Which change most likely occurs when the kinetic energy of water vapor decreases during condensation?
mylen [45]

Answer:

When the kinetic energy of water vapor decreases during condensation, <u>slowly moving particles near the cool surface condense.</u>

Explanation:

The change of state from a gas to a liquid is condensation. Liquid molecules which have this certain kinetic energy threshold escape from the surface and become vapor. As a result, the remaining liquid molecules now have lower kinetic energy. The temperature of the remaining liquid decreases as evaporation occurs.

The air that surrounded it cooled the cold can or glass. When you're cooling off  .They lose kinetic energy, a gas. The particles move more slowly as they move, the  attractions between them cause the formation of droplets of liquid. Condensed With,  when hot air containing water vapor reaches water, water also forms.  Cold surface touch, such as a glass of ice or soil that has a cold surface  refrigerated throughout the night.

6 0
3 years ago
Which of the following statements is/are CORRECT?1. For a chemical system, if the reaction quotient (Q) is greater than K, react
tankabanditka [31]

Explanation:

A chemical equilibrium is defined as the state of reaction in which the rate of forward reaction is equal to the rate of backward reaction.

When Q > K_{eq}, then it means that the reaction is proceeding in the backward reaction. Whereas if Q < K_{eq}, then it means that the reaction is proceeding in the forward direction. Hence, formation of products will be favored.

On the other hand, if Q = K_{eq}, then it means reaction is at equilibrium.

At equilibrium, it is not necessary that the concentrations of products divided by the concentrations of reactants equals one.

Thus, we can conclude that the statement for a chemical system at equilibrium, the forward and reverse rates of reaction are equal, is correct.

8 0
3 years ago
For Lewis acids and bases, the base is defined as an electron pair donor / acceptor (circle the correct answer).
damaskus [11]

Answer: electron donor.

Explanation:

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions (OH^-) when dissolved in water and an acid is defined as a substance which donates hydronium ions (H_3O^+) in water.

According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

NH_3+H^+\rightarrow NH_4^+

Here NH_3 acts as lewis base and H^+act as lewis acid.

Thus lewis base is defined as an electron pair donor.

8 0
4 years ago
The only way to observe a chemical property, is by reacting the substance with something else, which changes it into something n
lozanna [386]

Answer:

yes

Explanation:

pls mark me brainliest right

3 0
3 years ago
I NEED HELP FAST!!!!! Can you tell me about factors that change matter from one state to another??? I have a DBA in a few minute
EleoNora [17]
Adding energy to a matter causes a physical change. Head to water becomes vapor--taking energy away also causes physical change, (water becoming ice,) when heat is the energy being removed. 
8 0
3 years ago
Read 2 more answers
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