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ohaa [14]
3 years ago
14

How is the density of a substance calculated?

Chemistry
1 answer:
murzikaleks [220]3 years ago
3 0
Example:

sample density of gasoline, 20 g of weigth into 5 <span>mL

Answer:

D = m / V

D = 20 g / 5 mL

D = 4 g/mL</span>
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use the Gizmo to create a path for carbon that begins and ends in the atmosphere. Fill in the steps in the path below. Then, lab
Arturiano [62]
Answer:
Volcanoes, burning fossil fuels, and respiration of organisms.
Explanation:
Volcanoes, burning fossil fuels, and respiration of organisms releases carbondioxide that forms atmospheric carbondioxide. The carbon enters in the biosphere through the process of photosynthesis. In plants, carbondioxide enters in the plant body which is used as a reactant from which food is prepared. The carbon present in the plant body in the form of glucose which can be transferred into another organism due to feeding of organisms. The organism released this carbon in the form of carbondioxide when the eaten food is broken down for the release of energy. In that way, carbon moves from biosphere to the atmosphere whereas Volcanoes and burning fossil fuels releases carbon in the atmosphere, in this way carbon moves from lithosphere to atmosphere.
4 0
3 years ago
Consider the image below. What is not accurate about these models?
DaniilM [7]
I believe the first one is correct
5 0
3 years ago
Read 2 more answers
How is the value of an atomic number detirme?
serious [3.7K]

The number of protons in the nucleus determines the atomic number of an element.

Every element has its own characteristic atomic number.

4 0
4 years ago
Calculate the number of miles in 39 g silicon
Semenov [28]
Well what are all the calculations you have
3 0
3 years ago
The pressure of a sample of helium in a 200. ml. container is 2.0 atm. If the 5 points
just olya [345]

The pressure of the gas = 40 atm

<h3>Further explanation</h3>

Given

200 ml container

P = 2 atm

final volume = 10 ml

Required

Final pressure

Solution

Boyle's Law  

At a fixed temperature, the gas volume is inversely proportional to the pressure applied  

\tt \rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}

Input the value :

P₂ = P₁V₁/V₂

P₂ = 2 x 200 / 10

P₂ = 40 atm

3 0
3 years ago
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