Which statement best describes John Dalton’s use of creativity in his work?He reinterpreted and retested Joseph Proust’s results.
He used a scientific method to conduct his experiment.
He wrote his results down as four parts of the atomic theory.
He verified Democritus’s idea that matter was composed of atoms.

Answers

Answer 1

Answer: I think that the use of creativity in the sciences entails that one produce something out of nothing or from another thing. With this, I think that the third option, "He wrote down his results as four parts of the atomic theory" is the manifestation of the creativity of John Dalton.

Answer 2

Answer:

its A) He reinterpreted and retested Joseph Proust’s results.

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Which of the following is a property of a metal? Low melting point

Permeability

Ductility

Not able to conduct heat

Answers

The correct answer is the 3rd option Ductility is a property of a metal. It is the ability of a material to deform under tensile stress.It is characterized by the ability to be stretched into wire-like form which is an ability of metals.

What is the theoretical yield of hydrogen gas if 5.00 mol of zinc are added to an excess of hydrochloric acid?

Answers

the theoretical yield of hydrogen gas is 10 g

calculation

Step 1: write the equation for reaction

Zn + 2 HCl → zncl₂ + H₂

Step 2: use the mole ratio to find the moles of H₂

from equation above Zn : H₂ is 1: 1 therefore the moles of H₂ = 5.00 moles

Step 3: find the theoretical yield(mass) for H₂

mass = moles × molar mass

from periodic table the molar mass of H₂= 1×2 = 2 g/mol

mass = 5 moles × 2 g/mol = 10 grams

Answer:

B. 10.1 g

Explanation:

Which compounds are classified as electrolytes? (1) KNO3 and H2SO4 (3) CH3OCH3 and H2SO4 (2) KNO3 and CH3OH (4) CH3OCH3 and CH3OH

Answers

KNO₃ and H₂SO₄ are classified as electrolytes since they dissociate in water. KNO₃ in water goes to K₊ and NO₃⁻. H₂SO₄ in water can be thought of as going to 2H⁺ and SO₄²⁻ but later on you will learn that when placed into water, H₂SO₄ actually forms H₊, HSO₄⁻, and SO₄²⁻ since HSO₄⁻ is a weak acid and won't dissociate completely.
I hope this helps and if anything is unclear feel free to ask about it in the comments.

What is the total number of neutrons in an atom of O-18?
(1) 18 (3) 10
(2) 16 (4) 8

Answers

the oxygen has 8 protons and 8 neutrons in your nucleus

A = z + n

n = 18 - 8

n = 10 neutrons

Answer (3)

hope this helps!

Final answer:

The total number of neutrons in an atom of O-18 is 10. This is determined by subtracting the atomic number (number of protons) from the atomic mass (number of protons + neutrons).

Explanation:

To find the number of neutrons in an atom, you subtract the atomic number (number of protons) from the atomic mass (number of protons + neutrons). In an atom of O-18 (Oxygen-18), the atomic number of oxygen is 8, which means there are 8 protons. The 18 in O-18 represents the atomic mass. Subtracting the atomic number (8) from the atomic mass (18) gives us the number of neutrons, which is 10.

Learn more about Number of Neutrons here:

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The mutual force of attraction between ions of opposite charges acn best be described as...A) an ionic bond
B) a polar covalent bond
C) an electronegative bond
D) a non-polar covalent bond

Answers

The mutual attraction of oppositely charged ions is called the ionic bond. Polar covalent bond is composed of unequal sharing between of non-metal elements which are non-ionic. Non-polar bond is composed on the other hand of equal sharing of these non-ionic elements. Hence, the answer is A.

Answer:

A) an ionic bond

Explanation:

The mutual force of attraction between ions of opposite charges can best be described as an ionic bond.

In an ionic bond, an atom picks up electrons from the other so it becomes into a strongly electronegative atom while the other becomes into a strongly electropositive atoms and, as ions of different signs, it is generated an electrostatic attraction force between them.

Who wrote the banned book that Giordano Bruno read that gave him the idea that the universe was infinite?

Answers

steven soter was the one who wrote the book that gave Giordano Bruno the idea that unverse was infinite

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A sample of Ca(OH)2 is considered to be an Arrhenius base because it dissolves in water to yieldA. Ca2+ ions as the only positive ions in solution B. H3O+ ions as the only positive ions in solution C. OH– ions as the only negative ions in solution D. H– ions as the only negative ions in solution