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julia-pushkina [17]
3 years ago
6

What's your favorite song ​

Chemistry
1 answer:
Inessa [10]3 years ago
3 0
Run it up by nav and lemonade by dont oliver
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If I remove the table from under the book, what will happen to the book? Think about Newton’s second law of motion. Is there an
tiny-mole [99]

Newton’s second law of motion is a dot product of mass and acceleration, if you remove the table from, under the book, gravity will act on the book and pull it downwards to the centre of the earth

Newton's Second law of motion states that "<em>the </em><em>acceleration</em><em> of an object depends upon </em><em>two</em><em> </em><em>variables</em><em> – the net force acting on the object and the mass of the object.</em>"

In our case the mass of the book and the force of gravity

Learn more about Newton's Laws of motion:

brainly.com/question/10454047

3 0
2 years ago
How many CO2 molecules in 0.0189 mol of CO2?
Blizzard [7]

Answer:

option C is correct = 1.14 × 10²² molecules of  CO₂

Explanation:

Given data:

Number of moles of CO₂ = 0.0189 mol

Number of molecules = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

For given question:

1 mole of CO₂ =  6.022 × 10²³ molecules of  CO₂

0.0189 mol of CO₂ ×  6.022 × 10²³ molecules of  CO₂ / 1mol

1.14 × 10²² molecules of  CO₂

Thus, option C is correct.

4 0
3 years ago
How is a nonrenewable source different from a renewable one
Lady bird [3.3K]

A Nonrewnewable source is hard to get back from its source, while a renewable source is easy to get back from its source.

Example:

       Nonrenewable: crude oil, oil, coal, fossil fuels, etc.

        Renewable: sunlight, wind, biomass, rain, tides, waves and geothermal heat, etc.

5 0
3 years ago
Tissue that makes up the outer covering in humans
Rainbow [258]
I think it's called skin
4 0
3 years ago
Read 2 more answers
How many moles of carbon dioxide are produced when 23.0 g of C3H2O3 is burned during the
Mars2501 [29]

Moles of Carbon dioxide : 0.75

<h3>Further explanation</h3>

Given

23 g C₃H₈O₃

Required

Moles of Carbon dioxide

Solution

Reaction

2C₃H₈O₃ + 7O₂ → 6CO₂ + 8H₂O

mol C₃H₈O₃ :

= mass : MW

= 23 g : 92,09382 g/mol

= 0.24975

From the equation, mol ratio of C₃H₈O₃ : 3CO₂ = 1 : 3, so mol CO₂ :

= 3/1 x mol C₃H₈O₃

= 3/1 x 0.24975

= 0.74925≈0.750 mol

5 0
3 years ago
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