3 years ago

The emission spectrum for an element is? Select all that apply

1 answer:

4 0

Answer: You didn't give anything to select, however, the emission spectrum of a chemical element is frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state.

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Lorico [155]

Answer:

Phosphorus

Explanation:

Group V elements- Nitrogen, Phosphorous

period 3- Sodium, Magnesium, Aluminium, Silicon , Phosphorous, Sulphur, Chlorine and Argon

Group v and period 3 is phosphorus

6 0

3 years ago

Most scientists use scientific methods in which of the following orders

igomit [66]

Answer:

Experiment, analysis, research, purpose, hypothesis and conclusion.

6 0

3 years ago

Describe protons. Location: Charge: Mass

PilotLPTM [1.2K]

Answer:

Protons are one of the basic atoms.

Explanation:

Proton's charge: Positive (+)

Proton's location: Usually in the nucleus with neutrons

Proton's mass: 1.67262 × 10⁻²⁷ kg

6 0

3 years ago

Which rate law is consistent with the mechanism?

yulyashka [42]

C I’m pretty sure. The first step is the rate determining step

6 0

3 years ago

How do you know the strength of oxidizing/reducing agents in questions such as these ones? I know the answer for 37 is D but I d

Verdich [7]

Answer:

$Pd^{2+}$ is the strongest oxidizing agent .

Explanation:

It is said in the question that given reactions are spontaneous.

As $Np^{3+}$ oxidizes Ce to $Ce^{3+}$ we can say that $Np^{3+}$ is a stronger oxidizing agent than $Ce^{3+}$ .

Similarly , $Cd^{2+}$ is stronger than $Np^{3+}$ (from first reaction).

From second reaction we can see that $Pd^{2+}$ is stronger than $Cd^{2+}$ .

The order of oxidizing strength is $Pd^{2+}$ > $Cd^{2+}$ > $Np^{3+}$ > $Ce^{3+}$ .

3 0

3 years ago