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photoshop1234 [79]
3 years ago
6

Which of the following describes the Bohr atomic model?

Chemistry
2 answers:
bekas [8.4K]3 years ago
7 0
In Bohr's atomic model, an atom consist of a nucleus that is positively charged and is being surrounded by electrons that are said to travel in orbits or circular manner around. It is compared to the solar system where the nucleus is equivalent to the sun and the electrons are the planets.
BabaBlast [244]3 years ago
3 0

Answer:

The nucleus contains protons and neutrons and is orbited by electrons

Explanation:

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What is the mass of substance that exactly fills a 247.2 mL container? The density of the substance is 0.81 g/mL. Give the answe
matrenka [14]

Answer:

<h2>mass = 200.23 g</h2>

Explanation:

The density of a substance can be found by using the formula

Density =  \frac{mass}{volume}

Since we are finding the mass

<h3>mass = Density × volume</h3>

From the question

Density = 0.81 g/mL

volume = 247.2 mL

Substitute the values into the above formula and solve for the mass

mass = 0.81 × 247.2

= 200.232

We have the final answer as

<h3>mass = 200.23 g to 2 decimal places</h3>

Hope this helps you

3 0
3 years ago
How do i solve these chemistry problems
Ivahew [28]

What you have to do is balance the chemical equations to make sure everything is even on both sides. If you want me to help you answer the questions comment back

8 0
3 years ago
On a mission to a newly discovered planet, an astronaut finds chlorine abundances of 13.85 % for 35Cl and 86.15 % for 37Cl. What
diamong [38]

Answer:

36.693

Explanation:

From the question given, the following were obtained:

Let 35Cl be isotope A and 37Cl be isotope

For isotope A (35Cl),

Mass number = 34.9700

Abundance = 13.85 %

For isotope B (37Cl),

Mass number = 36.9700

Abundance = 86.15 %

Atomic mass =

[( Mass of AxAbundance A)/100] + [(Mass of BxAbundance B)/100]

[(34.97x13.85)/100] + [(36.97x86.15)/100]

= 36.693

6 0
3 years ago
1. Calculate the number of moles of carbon dioxide formed when 40.0 moles of oxygen is consumed in the burning of propane. Note
Andrews [41]

Answer:

1. D (24.0 moles CO2)

2. A (.239 moles H2)

Explanation:

1. First Balance the equation

1 C3H8 + 5 O2 ---> 3 CO2 + 4 H2O

Then set up a stoiciometric equation so that the moles of O2 cancel out

40mol O2 x \frac{3 mole CO2}{5 mole O2} = 24.0 moles CO2

2. Set up a stoichiometric equation

10 grams Fe x \frac{1 mole Fe}{55.85 grams Fe} x \frac{4 mole H2}{3 mole Fe} = 0.239 moles H2

6 0
3 years ago
In an solution of a carbonated beverage, the dissolved carbon dioxide is the_________
Damm [24]

Answer is: D. solute.

In aqueous solution, solvent is water and solute (in this example carbon dioxide CO₂) is a substance dissolved in water.

The amount of solute that can be dissolved in a solvent depends of chemical composition, temperature and pressure.

Solution has a uniform composition and is able to be separated by physical means.

6 0
3 years ago
Read 2 more answers
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