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astra-53 [7]
3 years ago
6

Match the term with the example that shows its definition [please].

Chemistry
1 answer:
ASHA 777 [7]3 years ago
5 0
A) Heat of combustion
B) Flammability
C) Compressibility
D) Toxicity
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What are three ways in which a metal is different to a non-metal?
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Answer:

1)non.metals gain electron but metals lose electron.

2)metals are good conductor of heat and electricity but non.meatals are bad conductor of heat and electricity.

3)most of metals are shiny but non .metals are not.

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Describe the two methods of active transport
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Endocytosis
Process by which the cell surrounds and takes particles into the cell

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An element has three naturally occurring isotopes. Use the information below to calculate the weighted average atomic mass of th
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Several kinds of bears are found on Earth. Most bears are brown or black, but one type of bear, the polar bear, is white. What p
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This is called adaptation. An example would be a polar bear with white fur. They have this to be more efficent hunters, as they use it as a type of camouflage in order to sneak up on prey. Brown bear use this in the same way but their environment requires them to be brown in order to blend in beter with trees. So basicly adaptation

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A chemical reaction occurring in a cylinder equipped with a moveable piston produces 0.641 mol of a gaseous product. If the cyli
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<u>Answer:</u> The final volume of the reaction is 4.69 L

<u>Explanation:</u>

The relationship of number of moles and volume at constant temperature and pressure was given by Avogadro's law. This law states that volume is directly proportional to number of moles at constant temperature and pressure.

The equation used to calculate number of moles is given by:

\frac{V_1}{n_1}=\frac{V_2}{n_2}

where,

V_1\text{ and }n_1 are the initial volume and number of moles

V_2\text{ and }n_2 are the final volume and number of moles

We are given:

V_1=2.05L\\n_1=0.280mol\\V_2=?L\\n_2=0.641mol

Putting values in above equation, we get:

\frac{2.05}{0.280}=\frac{V_2}{0.641}\\\\V_2=\frac{2.05\times 0.641}{0.280}=4.69L

Hence, the final volume of the reaction is 4.69 L

3 0
3 years ago
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