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andriy [413]
3 years ago
12

What is the definition of weight in science ​

Chemistry
1 answer:
AveGali [126]3 years ago
5 0

Answer: The weight is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object.

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How can you tell the difference between a mixture and a pure substance
xenn [34]
Mixtures are combinations of materials that can be separated by in most cases time. For instance, oil and water is a mixture. You can tell this by placing the two chemicals in a container and shaking them. They will mix and look like one substance, however, they will separate into the two liquids after some time is given. Assuming that "pure substance" is a solution, a substance is similar to a mixture, but the materials used in the solution are not separable. Over time the materials in the containing will not separate. I believe this is the answer you are looking for. 
8 0
3 years ago
When KCl dissolves in water:
34kurt

This dissociation occur because:

O had to bond with H due to the Hydrogen bonding rule, which will form OH~ (Hydroxide).

K is more attracted to Hydroxide than Cl, so it will depart Cl and bond with OH~.

that leaves a H and a Cl, which one has a positive charge and the other has a negative, so they will bond and form Hydrochloric Acid.

3 0
3 years ago
How does heat energy from the sun reach Earth?
Galina-37 [17]
It would probably be A
4 0
3 years ago
Read 2 more answers
The reaction below shows a system in equilibrium.
Marrrta [24]

The given question is incomplete, here is a complete question.

The reaction below shows a system in equilibrium.

H_2(g)+I_2(g)+Heat\rightarrow 2HI(g)

How would a decrease in temperature affect this reaction?

A. The rate of formation of the gases would increase.

B. The equilibrium of the reaction would shift to the left.

C. The equilibrium would shift to cause the gases to sublime into solids.

D. The chemicals on the left would quickly form the chemical on the right.

Answer : The correct option is, (B) The equilibrium of the reaction would shift to the left.

Explanation :

The given reaction is endothermic reaction.

For an endothermic reaction, heat is getting absorbed during a chemical reaction and is written on the reactant side.

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle. This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

As, heat is getting absorbed during a chemical reaction. This means that temperature is getting increased on the reactant side.

If the temperature in the equilibrium is decreased, the equilibrium will shift in the direction where, temperature is getting increased. Thus, the reaction will shift in left direction that is towards the reactants.

Hence, the correct option is, (B) The equilibrium of the reaction would shift to the left.

4 0
3 years ago
How do I describe an ion?
worty [1.4K]

Answer:

Explanation:

How do I describe an ion?

<h2>an ion is an atom that has had electrons added or taken away from it.</h2><h2>they do this in order to obtain a stable electronic configuration like their closest noble gas..see Periodic Table column 18 which is also column VIIIA</h2><h2>If they gain electrons, they are negative and are called</h2><h2>ANIONS</h2><h2>if they lose  electrons they are positive and are called</h2><h2>CATIONS  </h2><h2 />

5 0
3 years ago
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