Answer:
Down arrow:
-a car comes to a stop when a traffic light turns red
Up arrow:
-race car accelerates when a race begins
Circle:
-car driving 45 mile per hour down straight road
Explanation:
and i think the car going around a bend would be an up arrow
Answer:
Ethanol (boiling point 78°C) and methanol (boiling point 65°C) are two miscible liquids. There is only a small difference in their boiling points. These two liquids are separated from their mixture by fractional ths distillation.
When vapours of the mixture pass through the fractionating column, repeated liquefaction and vapourisation take place. Subsequently, the vapours of low boiling methanol enter the condenser from the fractionating column, condense to liquid and get collected in the round bottomed flask first. Similarly, ethanol with higher boiling point can be collected later in another round bottomed flask.
When 440.23 grams of iron(III) oxide are reacted with hydrogen gas, the amount of iron produced will be 307.66 grams
<h3>Stoichiometric calculation</h3>
From the equation of the reaction:
The mole ratio of iron(III) oxide to produced iron is 1:2.
Mole of 440.23 iron(III) oxide = 440.23/159.69 = 2.76 moles
Equivalent mole of produced iron = 2.76 x 2 = 5.52 moles
Mass of 5.52 moles of iron = 5.52 x 55.8 = 307.66 grams
More on stoichiometric calculations can be found here; brainly.com/question/27287858
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Answer:
A
Explanation:
Hope it helps
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Answer:
Volumen = 65.199 metro cúbico
Explanation:
Tal como lo conocemos
P1V1 = P2 V2
Aquí
P1 = 1,9 atmósferas
V1 = (pi) * r ^ 2 * h
Sustituyendo los valores dados, obtenemos
V1 = 3.14 * 2.8 * 2.8 * 4.6 = 113.241 metros cúbicos
V2 = por determinar
P2 = 3.3 atmósferas
Sustituyendo los valores dados y derivados en la fórmula principal, obtenemos -
1.9 atm * 113.241 metros cúbicos = 3.3 atm * V2
V2 = 1.9 atm * 113.241 metros cúbicos / 3.3 atm
V2 = 65.199 metro cúbico
