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4 years ago

What model is the basis for chemistry?

Chemistry

2 answers:

GalinKa [24]4 years ago

3 0

The Bohr model is the basis for chemistry

SashulF [63]4 years ago

3 0

The Borl model is the answer

You might be interested in

Work shown would be appreciated ❤️ 20 points!!!!

MArishka [77]

Answer:

35.453 amu.

Explanation:

From the question given above, the following data were obtained:

Isotope A (Cl–35):

Abundance (A%) = 75.77%

Mass of A = 34.969 amu

Isotope B (Cl–37):

Abundance (B%) = 24.23%

Mass of B = 36.966 amu

AVERAGE atomic mass of Cl =?

The average atomic mass of Cl can be obtained as follow:

Average = [(Mass of A × A%)/100] + [(Mass of B × B%)/100]

Average = [(34.969 × 75.77)/100] + [(36.966 × 24.23)/100]

Average = 26.496 + 8.957

Average atomic mass of Cl = 35.453 amu.

3 0

3 years ago

A 0.5922 g sample of a pure soluble chloride compound is dissolved in water, and all of the chloride ion is precipitated as AgCl

Elanso [62]

Answer: The mass percent chlorine in pure chloride compound is 56.31 %.

Explanation:

We are given:

Mass of AgCl precipitated = 1.3487 g

We know that:

Molar mass of AgCl = 143.32 g/mol

Molar mass of Chlorine atom = 35.45 g/mol

As, all the chlorine in the sample is precipitated to silver chloride. So, the mass of chlorine in silver chloride will be equal to the mass of chlorine present in the sample.

To calculate the mass of chlorine in given mass of AgCl, we apply unitary method:

In 143.32 g of silver chloride, mass of chlorine present is 35.45 g

So, in 1.3487 g of silver chloride, mass of chlorine present will be = $\frac{35.45g}{143.32g}\times 1.3487g=0.3335g$

To calculate the percentage composition of chlorine in pure chloride compound, we use the equation:

$\%\text{ composition of chlorine}=\frac{\text{Mass of chlorine}}{\text{Mass of pure chloride compound}}\times 100$

Mass of pure chloride compound = 0.5922 g

Mass of chlorine = 0.3335 g

Putting values in above equation, we get:

$\%\text{ composition of chlorine}=\frac{0.3335g}{0.5922g}\times 100=56.31\%$

Hence, the mass percent chlorine in pure chloride compound is 56.31 %.

6 0

4 years ago

Which one is denser? question 2 options: the earth (a solid object) the sun, which is about 300,000 times more massive than the

tankabanditka [31]

The Earth, Mars or Jupiter should be denser than the Sun. Density is defined by mass and volume — components of object or matter. Although the sun is huge, it’s component is made up of mostly gas (hydrogen and helium). While Earth, though smaller than the Sun, contains heavier elements such as iron, sulfur, rocks, sediments, granite, basalt and water. Mars (composed of rocks and nutrients) and Jupiter (contains gases and compounds) as well are denser when compared to the Sun’s density. Referencing to our basic understanding of matter: solid and liquid should be heavier than gas.

6 0

4 years ago

Explain the difference between the reacts and products of a chemical reaction

Alika [10]

Reactants are what is changed in the chemical reaction. They go before the arrow when you wrote the equation. Products are what is formed when the chemical reaction occurs. Products always contain the same elements as the reactants, but they might be rearranged because of the reaction. In this picture, you can see that the reactants go before the arrow, and the products go after.

5 0

3 years ago

The concentration of reactants and products and the rate of reaction were measured during a chemical reaction. After the first 3

igomit [66]

Answer: B

Explanation:

4 0

2 years ago