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hodyreva [135]
3 years ago
13

Question 1 (2 points)

Chemistry
1 answer:
bazaltina [42]3 years ago
7 0

Answer:

False

Explanation:

There is a direct relationship between wave frequency and energy...

The higher the frequency, the higher the energy

alternatively, the lower the frequency, the lower the energy

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Which clue can be used to identify a chemical reaction as a decomposition reaction?
sergij07 [2.7K]

Answer:

The reaction has a single reactant

Explanation:

Decomposition reaction is a reaction in which an insoluble single compound is heated at a high temperature and decomposes into several products.

Typically, we may see decomposition of calcium carbonate producing calcium oxide and carbon dioxide, this is represented by the following reaction:

CaCO_3 (s)\rightarrow CaO (s) + CO_2 (g)

Another example would be decomposition of ammonium nitrite. Ammonium nitrite would decompose into nitrogen and water:

NH_4NO_2 (s)\rightarrow N_2 (g) + 2 H_2O (l)

Notice that the two examples above share something in common: the two decomposition reactions have a single reactant.

4 0
4 years ago
Read 2 more answers
Unit 1- Unit Assessment (Matter & Density)
konstantin123 [22]

Answer:

<h3>The answer is 11 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 3025 g

volume = 275 mL

We have

density =  \frac{3025}{275}  \\

We have the final answer as

<h3>11 g/mL</h3>

Hope this helps you

7 0
3 years ago
An aluminum pan and a copper pan have the same mass and are heated to the same temperature. Which will feel hotter?
Aliun [14]

Answer:

<u>The copper pan! </u>

Explanation:

Copper conducts heat well because its atoms contain only one free valence electrons in the outer shell. Elements with a low number of valence electrons transfer heat the best, and copper has only one. Valence electrons move about freely.

<u><em>Good luck on your assignment!</em></u>

6 0
3 years ago
Any two difference between short sightedness and long sightednes​
SSSSS [86.1K]

Explanation:

tala it is also called myopia lekhnu hai

Äni Arko MA it is also called hypermetropia .

3 0
3 years ago
You are in a boat out on the lake.Each part of the lake represents the cell membrane,the boat is the nucleus,and the water would
diamong [38]

I think it would be b or d im not sure if im right so i would wait for someone else to answer

3 0
3 years ago
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