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max2010maxim [7]
3 years ago
11

Students in chemistry class have been given the assignment to use flame test emission data to determine the identity of an

Chemistry
1 answer:
konstantin123 [22]3 years ago
6 0

It is impossible to narrow down anything about the unknown.

Flame tests are common analytical techniques used to determine the composition of an unknown compound based on the color that it imparts to flame. Each metal ion imparts a specific color to flame which helps us to identify it.

In this case, two colors were visible in the flame and it will be difficult to determine which of the colors corresponds to the actual metal ion present.

Therefore, it is impossible to narrow down anything about the unknown.

Learn more: brainly.com/question/6357832

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Alex17521 [72]

Answer:sorry.

Explanation:

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3 years ago
Que impacto ambiental hay de los servicios de integrales de diseño y contracción​
Nuetrik [128]

Answer:

IMPACTO AMBIENTAL EN LOS DISEÑOS Y CONSTRUCCIÓN

Explanation:

Los impactos directos por el uso de las vías terrestres pueden incluir: mayor demanda de combustibles para los motores; accidentes con los medios no motorizados de transporte o el reemplazo de los mismos; mayor contaminación del aire, ruido, desechos a los lados del camino; daños físicos o muerte a animales y personas ...

8 0
3 years ago
What is potential energy
Elanso [62]

Answer:

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

Explanation:

7 0
3 years ago
if the percent yield ofr the following reaction is 75% and 45.0g of NO2 are consumed with ercess water in the reaction. how many
NISA [10]

Answer:

30.8 grams of nitric acid are produced

Explanation:

Let's state the reaction:

3 NO₂ + H₂O → 2 HNO₃ + NO

If water is the excess reagent, then the limiting is the gas.

We convert the mass to moles:

45 g . 1 mol/ 46 g = 0.978 moles

Ratio is 3:2. 3 moles of gas can produce 2 moles of acid

Then, 0.978 moles may produce (0.978 . 2) /3 = 0.652 moles of acid

This is the 100% yield, but in this case, the percent yield is 75%

0.652 moles . 0.75 = 0.489 moles

Let's convert the moles to mass → 0.489 mol . 63g / 1mol = 30.8 g

6 0
3 years ago
Which equation is balanced?
Paha777 [63]

Answer:

it's the third one

Explanation:

in the first one oxygen molecules aren't balanced

the second ok me oxygen isnt balanced

and the fourth one hydrogen isn't balanced

hope it helps ;)

5 0
3 years ago
Read 2 more answers
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