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podryga [215]
3 years ago
14

Which of the following is true about matter

Chemistry
1 answer:
SashulF [63]3 years ago
8 0

Answer: b- it is always a substance

Explanation: matter can be any liquid, gas, or solid that takes up space so the answer cannot be C or D. For answer number A to be true, you would have to remove the word more, because matter just has mass and takes up space it does not have "more mass"

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A ____________ is made up of all the living and nonliving factors in an area.
alexandr1967 [171]

An Ecosystem is made up of all the living and nonliving factors in an area.

Why not an Asteroid nor a continent?

An asteroid is any small rocky object in the inner solar system.

A continent is one of several very large landmasses of the world. Such as North and South America, Australia, Africa, Europe and Asia.

Hope this helps you!

8 0
3 years ago
I’m trying to figure out how to convert 6 moles KCL to particles.
I am Lyosha [343]

Answer:

How many moles KCl in 1 grams? The answer is 0.013413582325

1 mole is equal to 1 moles KCl, or 74.5513 grams.

447.3078 is the answer

Explanation:

<em>~Cornasha_Weeb</em>

7 0
3 years ago
Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under
Radda [10]

Answer:

O Charles's law .

Explanation:

Hello!

In this case, since the use of gas laws leads to a good comprehension of how gases behave towards volume, pressure and temperature, we can review that the Boyle's law explains the pressure-volume variation, the Dalton's law the partial pressure effect, the Gay-Lussac's law that of pressure and temperature and the Charles' that of temperature and volume at constant pressure; thus, the answer for the asked question is:

O Charles's law

Best regards!

8 0
3 years ago
Consider the combustion reaction for octane (C8H18), which is a primary component of gasoline.
lesya692 [45]

Answer:

n_{CO_2}=1.93 gCO_2

Explanation:

Hello,

In this case, considering the given chemical reaction, we can use the molar mass of octane (114.23 g/mol) and the 2:16 molar ratio with carbon dioxide to compute the emitted moles of CO2 to the atmosphere via the following stoichiometric procedure:

n_{CO2}=27.6gC_8H_{18}*\frac{1molC_8H_{18}}{114.23gC_8H_{18}}  *\frac{16molCO_2}{2molC_8H_{18}} \\\\n_{CO_2}=1.93 gCO_2

Which also corresponds to the following mass:

m_{CO_2}=1.93molCO_2*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=85.0gCO_2

Best regards.

6 0
3 years ago
What is the ph for hcl and ch3cooh?
Maurinko [17]
HCL - 3.01
CH3COOH -2.4
5 0
4 years ago
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