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Serjik [45]
3 years ago
14

Loudness is expressed in

Chemistry
2 answers:
Alex787 [66]3 years ago
8 0

Answer:

Waves

Explanation:

     

Archy [21]3 years ago
6 0

Answer:

Decibel

Explanation:

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Draw the organic and inorganic products for the following acid/base reaction as well as the charges.
Reptile [31]
<span>The product would be :
H3O+ Benzaldehyde -----> C6H5CHO.
It will form a neutral molecule. So the charge is neutral.
I hope it helped.</span>

8 0
3 years ago
How many molecules are in 4 moles of carbon monoxide (CO)?
ladessa [460]

Answer:

A

Explanation:

because number of particle = moles × 6.02 × 10^23

which gives the answer as an A

8 0
3 years ago
If 25.3 grams of mercury(II) oxide react to form 23.4 grams of mercury, how many grams of oxygen must simultaneously be formed?
sergij07 [2.7K]

Answer : The mass of oxygen formed must be 3.8 grams.

Explanation :

Law of conservation of mass : It states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The balanced chemical reaction will be,

2HgO\rightarrow 2Hg+O_2

According to the law of conservation of mass,

Total mass of reactant side = Total mass of product side

Total mass of 2HgO = Total mass of 2Hg+O_2

As we are given :

The mass of HgO = 25.3 grams

The mass of Hg = 23.4 grams

So,

2\times 25.3g=2\times 23.4g+\text{Mass of }O_2

50.6g=46.8g+\text{Mass of }O_2

\text{Mass of }O_2=3.8g

Therefore, the mass of oxygen formed must be 3.8 grams.

6 0
3 years ago
Calcium is an element. What is the smallest particle of calcium that has the same chemical properties of calcium?
Verdich [7]

Answer:

A. An Atom

Explanation:

An atom is the smallest particle of an element, having the same chemical properties as the bulk element.

5 0
2 years ago
Read 2 more answers
List two of the kingdoms found in the Eukarya domain
IrinaK [193]
Animalia and Plantae

Hope that helps
6 0
3 years ago
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