All categories

3 years ago

6. According to the ideas of Democritus and Dalton, which of the following

Chemistry

1 answer:

Varvara68 [4.7K]3 years ago

4 0

Answer: The wire is still copper and does not change by cutting it

Explanation:

Democritus postulated that all materials were composed of these tiny particles called as "atomos".

Daltons postulates are:.

1. All matter is made of very tiny particles called atoms.

2. Atoms is indivisible.

3. Atoms of a given element are identical in mass and chemical properties.

4. Atoms of different elements have different masses and chemical properties.

5. Atoms combine in the ratio of small whole numbers to form compounds.

6. The relative number and kinds of atoms are constant in a given compound.

Thus when copper wire is cut into the smallest possible pieces, the atoms were intact as they are indivisible and all atoms have same mass and chemical properties.Thus the wire is still copper and does not change by cutting it

You might be interested in

HALLP ME STUCKKKKK

likoan [24]

Answer:

The average height of the sunflower sprouts at the end of week 3 is 12.0

cm.

The average height of the birch sprouts at the end of week 3 is 7.2

cm.

Explanation:

they showed it on edgu

7 0

3 years ago

Read 2 more answers

What is the name given to the ions of the halogens on the periodic table?

WARRIOR [948]

Answer:

halides

Explanation:

This is one electron away from having a full octet of eight electrons, so these elements tend to form anions having -1 charges, known as halides: fluoride, F-; chloride, Cl-, bromide, Br-, and iodide, I-. In combination with other nonmetals, the halogens form compounds through covalent bonding.

7 0

3 years ago

The molar mass of gallium (Ga) is 69.72 g/mol.

Thepotemich [5.8K]

Answer:

2.35 x 10²⁰ atoms Ga

Explanation:

After converting from mg to g, use the molar mass as the unit converter to convert to moles. Then using Avogadro's number, 6.022 x 10²³ convert from moles to atoms of Ga.

$27.2mgGa*\frac{1g}{1000mg} *\frac{1 mol Ga}{69.72gGa} *\frac{6.022*10^2^3 atoms Ga}{1 molGa} = 2.349 * 10^2^0 atoms Ga$

Then round to 3 significant figures = 2.35 x 10²⁰ atoms Ga.

6 0

3 years ago

Using at least two properties of ionic compounds, explain why cookware is not made from ionic compounds.

muminat

Answer:

They mostly dissolve in water, and they are poor conductors of heat.

7 0

2 years ago

What is the objective of sustainable development? Sustainable development is concerned with meeting needs without jeopardizing t

Anna [14]

Answer:

To meet the needs of the present without jeopardizing that of the future.

Explanation:

Sustainable development applies to all faculties of resource allocation. Most available resources are limited in their capacity to satisfy our limited human wants.

Sustainable development is such development geared towards satisfying the developmental needs of our present generation without endangering those of the future generations.
It allows for safe and efficient use/allocation of resources to meet wants.
Conservation of resources is an approach towards sustainable development.
The use of recycled materials is one method of attaining the obligations of sustainable development.

5 0

3 years ago