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storchak [24]
3 years ago
14

Light travels in

Chemistry
1 answer:
Lena [83]3 years ago
4 0

Answer:

Light travels in

O transverse waves

mechanical waves

electromagnetic waves

sound waves

Explanation:

just do it, or study

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What is cellular respiration?
tankabanditka [31]
Heya

ques is what is cellular respiration?

the ans is Exchanging O2 for CO2 in the blood within the lungs.

thank u
8 0
4 years ago
Which of these represents the correctly balanced equation?
SCORPION-xisa [38]

Answer:

2HCI + Na2S ----> H2S + 2NaCl

Explanation:

For a balanced chemical equation, the number of moles of atoms on the reaction side must equal the number of moles of atoms on the product side, in accordance with the law of conservation of mass.

The correct answer is:

2HCI + Na2S ----> H2S + 2NaCl

Since it has equal number of moles of each atom on both sides of the equation: 2 atoms each of hydrogen, chlorine, and sodium on both sides of the equation as well as 1 atom of sulphur on both sides of the equation.

5 0
4 years ago
A gas has a volume of 45 L at a pressure of 140 kPa. What is the volume when
suter [353]

Answer:

21 L

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

8 0
4 years ago
Given the equation 2mg(s) + o2(g) → 2mgo(s) + 72.3 kj, how much heat is involved in the production of 5.0 mol of mgo? question 2
Rudik [331]
The heat is involved   in the  production of 5.0 mol of MgO  is   180 Kj

               calculation

2 Mg (s)   +O2 → 2 MgO

From  the  equation  above two  moles    of MgO  is used  therefore   

72.3   is for   2   moles

that is   72.3  kj =  2moles
                  ?      = 5  moles 

by  cross  multiplication

= 72.3  kj × 5/2     = 180  Kj  
    

7 0
3 years ago
Which particle is transferred from one object to another to create a static charge?
Snezhnost [94]
The answer is Electron


Hope this helped!!! :)

3 0
3 years ago
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