Help please ASAP!!!

1 answer:

4 0

Since, E = hf, the transition that releases the highest frequency light will have the greater energy difference.

Blue light has a higher frequency than red light so the transition from X to Y has the greater energy difference.

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6. Menthol is a member of the terpene family of natural products. It exists in a (1R, 2S, 5R) form and a (IS, 2R, 5S) form. Are

Usimov [2.4K]

Here ya go if you need the link we’re I found this answer key https://studylib.net/doc/8708211/exam-2---chemistry

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2 years ago

A lead–tin alloy of composition 30 wt% Sn–70 wt% Pb is slowly heated from a temperature of 150°C (300°F).(a) At what temperature

Novay_Z [31]

Answer:

a) 231.9 °C

b) 100% Sn

c) 327.5 °C

d) 100% Pb

Explanation:

This is a mixture of two solids with different fusion point:

$Tf_{Pb}=327.5 C$

$Tf_{Sn}=231.9 C$

<u>Given that Sn has a lower fusion temperature it will start to melt first at that temperature. </u>

So the first liquid phase forms at 231.9 °C and because Pb starts melting at a higher temperature, that phase's composition will be 100% Sn.

The mixture will be completely melted when you are a the higher melting temperature of all components (in this case Pb), so it will all in liquid phase at 327.5 °C.

At that temperature all Sn was already in liquid state and, therefore, the last solid's composition will be 100% Pb.

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3 years ago

What is the organization that regulates the safety of Bluetooth and other wireless devices

Dimas [21]

Answer:

The U.S. Federal Communications Commission (FCC)

Explanation:

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2 years ago

Why does knowing the mass of an object not help you identify what material the object is made from?

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Because mass is not always the same for objects made from the same material. Just because an object has the same mass as another doesn’t mean they are the same material.

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Would a false positive from the reaction between the inoculating loop and hydrogen peroxide

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The false positive from the response of hydrogen peroxide and the immunizing circle would be created by poor specificity. The recipe for specificity is TN/TN+FP. False-positive outcomes can be ascribed to meddling substances in nature where the strips are put away or utilized, for example, hydrogen peroxide (H2O2) or fade (hypochlorite).

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3 years ago