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Alenkinab [10]
3 years ago
12

Match each term with the appropriate definition.

Chemistry
1 answer:
Misha Larkins [42]3 years ago
8 0

Answer:

Spectroscopy — the study of the absorption and emission of light by atoms

Absorption spectrum — represents energy absorbed as dark bands

Atomic spectrum — represents energy emitted or absorbed

during electron jumps

Emission spectrum — represents energy emitted as colored lines

Explanation:

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Which is warmer 10c or 30f
OleMash [197]

Answer:

your answer is 30f

Explanation:

The coldest possible temperature, or absolute zero, is -273.15 degrees Celsius, or 0 degrees Kelvin. So, 10 degrees Celsius (and this shouldn't be taken too literally) is in fact only about 1.8 per cent warmer than 5 degrees, and 30 degrees is only about 5.2 per cent warmer than 15 degrees.

3 0
3 years ago
The chemical formula for the ionic compound aluminum sulfite is Al2(SO3)3. Explain why there are 2 cations for every 3 anions in
svp [43]

Answer:

Explanation:

While trying to write the chemical formula for a compound (a neutral molecule), one must identify and exchange the charge of the cation with that of the anion to become the subscript of one other. For example

Aluminium oxide has Aluminium (Al) and oxygen (O); since Al has a charge of 3+ (the cation) and O has a charge of 2- (the anion), the compound would have it's charges as Al³⁺O²⁻ and when the charges are exchanged to there subscripts, it would form Al₂O₃; thus there would be two cations of aluminium for every three anions of oxygen in order to have a neutral molecule.

This same explanation can be given to Aluminium sulfite. Aluminium sulfite has Aluminium (Al) and sulfite (SO₃). Al has a charge of 3+ (cation) while sulfite has a charge of 2- (anion), with the compound having it's charges as Al³⁺(SO₃)²⁻ and when the charges are exchanged to there subscripts, it would form Al₂(SO₃)₃ and would thus have 2 cations of aluminium (Al³⁺) for every 3 anions of sulfite (SO₃³⁻) in order to have a neutral molecule.

8 0
3 years ago
The old car left on the side of the road showed signs of corrosion. We call this common chemical reaction rusting. The equation
Ivanshal [37]
<span>The old car left on the side of the road showed signs of corrosion. We call this common chemical reaction rusting. The equation for this reaction can be written as 4Fe + 3O2 → 2Fe2O3. What are the reactants in the rusting process? 
</span>
C. Iron and Oxygen

4 0
3 years ago
The mass of an object is measured to be 55.6 g. Its volume is measured to be 48.5 mL.
Nezavi [6.7K]

Answer:

1.15 g/mL

Explanation:

The following data were obtained from the question:

Mass (m) = 55.6 g

Volume (V) = 48.5 mL

Density (D) =?

Density is simply defined as the mass of the substance per unit volume of the substance. It is represented mathematically as:

Density (D) = mass (m) /volume (V)

D = m/V

With the above formula, we can obtain the density of the object as follow:

Mass (m) = 55.6 g

Volume (V) = 48.5 mL

Density (D) =?

D = m/V

D = 55.6/48.5

D = 1.15 g/mL

Therefore, the density of the object is 1.15 g/mL

6 0
4 years ago
Evaluate three communication skills that can assist you in sustaining positive relationships​
Tpy6a [65]

1. Accept and celebrate differences. One of the biggest challenges we experience in relationships is that we are all different. We can perceive the world in many ways. Certainly astumbling block that we come across when we try to build relationships is a desire or an expectation that people will think like we do and, in this way, it is so much easier to create a rapport. We feel more comfortable when we feel that people “get” us and can see our point of view. Life, however, would be very dull if we were all the same and, while we may find it initially easier, the novelty of sameness soon would wear off. So accepting and celebrating that we are all different is a great starting point.

2. Listen effectively. Listening is a crucial skill in boosting another person’s self-esteem, the silent form of flattery that makes people feel supported and valued. Listening and understanding what others communicate to us is the most important part of successful interaction and vice versa.

Active or reflective listening is the single most useful and important listening skill. In active listening, we also are genuinely interested in understanding what the other person is thinking, feeling, wanting, or what the message means, and we are active in checking out our understanding before we respond with our own new message. We restate or paraphrase our understanding of their message and reflect it back to the sender for verification. This verification or feedback process is what distinguishes active listening and makes it effective.

3. Give people your time. Giving time to people is also a huge gift. In a world where time is of the essence and we are trying to fit in more than one lifetime, we don’t always have the time to give to our loved ones, friends, and work colleagues. Technology has somewhat eroded our ability to build real rapport and we attempt to multi-task by texting and talking at the same time.

Being present in the time you give to people is also important, so that, when you are with someone, you are truly with someone and not dwelling in the past or worrying about the future. The connection we make with other people is the verytouchstone of our existence, and devoting time, energy, and effort to developing and building relationships is one of the most valuable life skills.

3 0
3 years ago
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