In atomic emissions spectroscopy, the atom(s) absorb energy, become excited, and release energy in what form?

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Answer 1

Answer:

In atomic emission spectroscopy, the atoms absorb energy, become excited, and release energy in the form of light.

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Aluminum metal reacts with aqueous iron(II) chloride to form aqueous aluminum chloride and iron metal. What is the stoichiometric coefficient for aluminum when the chemical equation is balanced using the lowest, whole-number stoichiometric coefficients? Aluminum metal reacts with aqueous iron(II) chloride to form aqueous aluminum chloride and iron metal. What is the stoichiometric coefficient for aluminum when the chemical equation is balanced using the lowest, whole-number stoichiometric coefficients? 3. 1. 4. 2.
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Write the complete balanced equation for Manganese & sulfuric acid --> Manganese (II) sulfate & water & sulfur dioxide no spaces
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WILL GIVE BRAINLIEST!

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Answer:

I kinda forgot. I'm sorry if I didn't answer your question.

Explanation:

A sample of an unknown substance has a mass of 0.158 kg. If 2,510.0 J of heat is required to heat the substance from 32.0°C to 61.0°C, what is the specific heat of the substance?

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Specific heat capacity is the required amount of heat per unit of mass in order to raise teh temperature by one degree Celsius. It can be calculated from this equation: H = mCΔT where the H is heat required, m is mass of the substance, ΔT is the change in temperature, and C is the specific heat capacity.

H = mCΔT
2501.0 = 0.158 (C) (61.0 - 32.0)

C = 545.8 J/kg·°C

How many mole ratios can be written for a chemical reaction involving 3 substances

Answers

Answer : 3 substance will have 3 mole ratios to be written for a chemical reaction.

Explanation : The mole ratio can be defined as the ratio between the amounts in moles of any two or more compounds involved in a chemical reaction.

It can be determined by comparing the coefficients the formulas of a balanced chemical equation. It is also known as the molar ratio or mole-to-mole ratio.

Hence, when 3 substances are involved in a chemical reaction 3 mole ratios can be written for it.

There can be three mole ratios that can be written involving three substances.It depends on the constant of your reactant to your product. It also depends on the asked mole ratio. But the maximum would be 3 mole ratios because you have 3 substances in your reaction.

Which of the following is an oxidation-reduction reaction? Fe2O3 + 3CO mc009-1.jpg 2Fe + 3CO2 CuSO4 + 2NaOH mc009-2.jpg Cu(OH)2 + Na2SO4 2NaOH + H2CO3 mc009-3.jpg Na2CO3 + 2NaOH Pb(NO3)2 + Na2SO4 mc009-4.jpg 2NaNO3 + PbSO4

Answers

Answer:

$Fe_(2)O_(3)+3CO\rightarrow 2Fe+3CO_(2)$ is an oxidation-reduction reaction.

Explanation:

In an oxidation-reduction reaction, the oxidation number of some elements must change during reaction.

$Fe_(2)O_(3)+3CO\rightarrow 2Fe+3CO_(2)$ represents an oxidation-reduction reaction.

oxidation number

Fe in $Fe_(2)O_(3)$ +3

Fe in Fe 0

C in CO +2

C in $CO_(2)$ +4

SO, oxidation number of Fe decreases during reaction. Hence $Fe_(2)O_(3)$ is being reduced. Also, oxidation number of C increases during reaction. Hence CO is being oxidized.

In all other given reactions, oxidation number of elements are not changed during reaction. Hence they are not oxidation-reduction reaction.

Answer: it's A

Explanation:

____ Turns food into a new form: a form that cells can use. A chemical change. B grinding. C physical change. D mixing. Why

Answers

The correct answer is A. Chemical change turns food into a new form, a form that cells can use. It happens because the food we eat cannot be processed by cells so several reactions inside our body allow chemical changes to the food we ate turning them to usable compounds for our cells.

The electromagnetic waves that have the lowest frequencies are called a. radio waves.
c. ultraviolet waves.
b. microwaves.
d. x-rays.

Answers

radio waves is the lowest frequency

the correct answer to this question is radio waves

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