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2 years ago

5. Compare the threats faced by the Everglades and the Louisiana wetan

Chemistry

1 answer:

SOVA2 [1]2 years ago

5 0

The Everglades and the Louisiana wetan are the same

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How many grams of carbon monoxide are needed to react with an excess of iron (III) oxide to produce 198.5 grams of iron? Fe2O3(s

erastova [34]

Answer : The grams of carbon monoxide needed are 148.89 g

Solution : Given,

Mass of iron, Fe = 198.5 g

Molar mass of iron, Fe = 56 g/mole

Molar mass of carbon monoxide, CO = 28 g/mole

First we have to calculate the moles of iron, Fe.

$\text{ Moles of Fe}=\frac{\text{ Mass of Fe}}{\text{ Molar mass of Fe}}=\frac{198.5g}{56g/mole}=3.545moles$

The balanced chemical reaction is,

$Fe_2O_3(s)+3CO(g)\rightarrow 3CO_2(g)+2Fe(s)$

From the balanced reaction, we conclude that

2 moles of iron produces from the 3 moles of carbon monoxide

3.545 moles of iron produces from the $\frac{3}{2}\times 3.545=5.3175$ moles of carbon monoxide

Now we have to calculate the mass of carbon monoxide, CO.

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

$\text{ Mass of CO}=(5.3175moles)\times (28g/mole)=148.89g$

Therefore, the grams of carbon monoxide needed are 148.89 g

7 0

2 years ago

A car driver accelerates to a speed of 35 mph and then takes her foot off the gas pedal. Even though she does not press the brak

RSB [31]

The list of options to answer this question is:

A.kinectic energy is transformed into thermal energy.

B.electrical energy is transformed into potential energy.

C.potential energy is transformed into kinectic energy.

D.mechanical energy is transformed into chemical energy.

The answer is the option A. A.kinectic energy is transformed into thermal energy.

As you know energy cannot be lost but transformed.

When friction force acts over the tyres it increases the speed of the particles in the tyres which is thermal energy, this thermal energy increase comes from kinetic energy loss.

7 0

3 years ago

Why can a liquid take shape of the bottom of its container

Anna71 [15]

<span>The particles in a liquid are not stuck in fixed positions, which is why liquids flow to take the shape of a container into which they are placed. Hope this helps :D</span>

4 0

2 years ago

Read 2 more answers

Please help me on #7,9,10

Kay [80]

7=cells
9= The Central Nervous system
10= not sure

4 0

2 years ago

Photosynthesis takes carbon dioxide, water, and sunshine and turns them into____?

RUDIKE [14]

Photosynthesis takes carbon dioxide, water and sunshine and turn them into glucose and oxygen

Explanation
Glucose is the principal carbohydrate formed through photosynthesis, Through the process of photosynthesis sunshine, carbon dioxide and water to form glucose and oxygen

Equation for reaction is as follows

CO2+ H2O + light energy → C6H12O6 +O2

C6H12O6 is the glucose

3 0

3 years ago