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LUCKY_DIMON [66]

3 years ago

7

What does velocity describe

2 answers:

nasty-shy [4]3 years ago

8 0

Answer:

speed is the speed with which an object travels

Explanation:

for physics The average speed of an object is defined as the distance traveled by an object divided by the elapsed time. Speed is a vector quantity and the average speed can be defined as the displacement divided by time. in the same way the speed helps to calculate the travel time, since the more speed the less time is made.

White raven [17]3 years ago

7 0

<span>Velocity describes the speed of an object and its direction of motion</span>

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Where do properties of matter come from?

Korolek [52]

Answer:

Extensive or inextinsive and either physical or chemical

8 0

1 year ago

What amount of carbon dioxide (in moles) is produced from the reaction of 2.24 moles of ethanol with excess oxygen?

algol13

Answer : The amount of carbon dioxide produced is, 197.12 grams.

Explanation : Given,

Moles of ethanol = 2.24 mole

Molar mass of carbon dioxide = 44 g/mole

The balanced chemical reaction will be,

$C_2H_5OH+3O_2\rightarrow 2CO_2+3H_2O$

First we have to calculate the moles carbon dioxide.

From the balanced chemical reaction, we conclude that

As, 1 mole of ethanol react to give 2 moles of carbon dioxide

So, 2.24 mole of ethanol react to give $2\times 2.24=4.48$ moles of carbon dioxide

Now we have to calculate the mass of carbon dioxide.

$\text{Mass of }CO_2=\text{Moles of }CO_2\times \text{Molar mass of }CO_2$

$\text{Mass of }CO_2=4.48mole\times 44g/mole=197.12g$

Therefore, the amount of carbon dioxide produced is 197.12 grams.

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2 years ago

Which substance is an electrolyte

Anit [1.1K]

Examples of electrolytes

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2 years ago

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Andre45 [30]

Answer:

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irakobra [83]

2H2+O2→2H2O
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2 years ago

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