CHEMISTRY HIGH SCHOOL

The first person to use the term "atom" was _____. Dalton Democritus Aristotle the Egyptians

Answers

Answer 1
Answer: the term atom comes from Greek. Democritus was the first person to use the name.
Answer 2
Answer: Democritus. Is. The. Correct. Answer I. Hope this will be helpful

Related Questions

What are two properties of most nonmetals?(1) high ionization energy and poor electrical conductivity(2) high ionization energy and good electrical conductivity(3) low ionization energy and poor electrical conductivity(4) low ionization energy and good electrical conductivity
Many scientists contributed to the current model of atoms. Which of the following offers a hypothesis on how people’s backgrounds and interests influence their work?A person with more activities and interest is more creative and intelligent. A person’s background and interests can give him a unique perspective in his research. If a person has an outside influence on his work, it is more credible to the general public. A person’s involvement in arts and literature will help them notice more details in their research.
What does newton's third law say about why momentum is conserved in collisions?A. Equal forces act in equal times, so the change in momentum for both objects must be equal. B. Unequal forces act in unequal times, so the change in momentum for both objects must be equal. C. Unequal forces act in unequal times, so the change in momentum for both objects must be unequal. D. Equal forces act in unequal times, so the change in momentum for both objects must be equal.
Consider the following 1.0 mol L–1solutions. Which one of the following lists the solutions in decreasing order (that is, strongest to weakest) of electrolyte strength? (a) sodium phosphate > sulfuric acid > phosphoric acid > sucrose (sugar) (b) sucrose (sugar) > sulfuric acid > phosphoric acid > sodium phosphate (c) sulfuric acid > sodium phosphate > phosphoric acid > sucrose (sugar) (d) sodium phosphate > phosphoric acid > sulfuric acid > sucrose (sugar)
Magnesium chloride is a salt formed with ionic bonds between one magnesium ion and two chloride ions. Magnesium has two electrons in its outer shell and chlorine has seven electrons in its outer shell. How are the electrons transferred between these atoms?

What 2 tools do we use to measure volume?

Answers

Answer:

u

Explanation:
what are the answer choices? there are multiple tooks

If you travel from the Earth to the moon, which of the following measurements would change? Mass

Weight

Density

Size

Answers

Assuming you are talking about the individual in space, Size and Weight changes in space due to the difference in gravity. Astronauts grow taller in space due to the micro-gravity they experience out of the earth's atmosphere.

It would not be:
Mass : Because mass is a measurement not dependent on gravity
Density : Astronauts do not blow out in bubbles once they leave the earth's atmosphere, therefore, we can deduct that density stays the same
Your weight - mass is the amount of matter you are made of, therefore that would not change. Weight takes into account the gravitational force of the planet you are on, and as the pull of gravity is different on earth to the moon, your weight would vary.

Saltwater _____. has a pH of 10 is mostly used for irrigation and farming can be desalinized and used for drinking is mostly found in glaciers, ice caps, and aquifers

Answers

I think the best statement to fill the blank is that "can be desalinized and used for drinking". The said statement seems the most appropriate one because the pH of saltwater is not 10 but approximately between 7.6 to 8.4. Also, saltwater is not found in glaciers, ice caps and aquifers instead it is freshwater.

Answer:

C

Explanation:

can be desalinized and used for drinking

Why can molten solution of ionic compounds be electrolysed

Answers

Answer:

the current is carried through the electrolyte by the movement of ions - not electrons.

Explanation:

The reason that an electrolyte has to be molten or in solution is that the current is carried through the electrolyte by the movement of ions - not electrons. In a solid, those ions can't move. It also follows, of course, that an electrolyte must contain ions.

A student analyzed an unknown sample that contained a single anion. The sample gave a white precipitate upon addition of a solution of AgNO3 which dissolved in ammonia. Which anion is present in the unknown solution? Write the corresponding net ionic equation.

Answers

Answer:

Chloride ion

Explanation:

The anion present in the unknown solution would be chloride ions.

A white precipitate of silver chloride is usually formed when drops of silver nitrate are added to a solution containing chloride ions. The ionic equation is as below:

    Cl^- (aq) + Ag^+ (aq) --> AgCl (s)

Which element has a grater atomic radius ?phosphorus or bismuth?

Answers

According to periodic trends, bismuth has the greatest atomic radius.
Other Questions
A(n) _____ reaction is a self-sustaining series of chemical reactions in which the product of one reaction are the reactsnts in the next reaction.* not a multiple choice *
As the density of a substance increases, the volume of a given mass of that substance__.a. Increasesb. is not affectedc. decreasesd. fluctuates
Which reaction will most likely take place?Pt + FeCl3 Mn + CaO Li + ZnCO3 Cu + 2KNO3
As the temperature of a sample of matter is increased, what happens to the average kinetic energy of the particles in the sample?A. It decreases. B. It increases. C. It does not change.