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Zina [86]
2 years ago
5

2C2H2(g) + 502(g) → 4C02(g) + 2H20(g) reaction type?

Chemistry
1 answer:
ratelena [41]2 years ago
7 0

Answer:

The answer is combustion.

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Susan needs to simplify the expression shown below what should be her first step
Digiron [165]
Susan should follow PEMDAS,

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction,

So, the first step should be, to solve the equation in the parentheses.

I hope this helps!
5 0
3 years ago
If you leave a glass of water and ice on the kitchen counter long enough, after a while you will have just a glass of water. why
irakobra [83]
The heat of the water is shared with the ice and there for you drink will get cold but your ice will melt away from the heat going in the ice
8 0
3 years ago
I need help on chemistry work
Flauer [41]

Answer:

sorry I didn't know the answer

Explanation:

ok

5 0
3 years ago
Which of the following is true: A. Gamma rays are too dangerous to be used in a medicinal way. B. Gamma radiation is used common
ratelena [41]

Answer:

D

Explanation:

Gamma radiation penetrates the cell wall of prokaryotic organisms such as bacteria and can inhibit their metabolic functions as well as destroy their DNA.

Debunking the other answers:

A is incorrect as Gamma radiation is used in the treatment of cancer via radiotherapy.

B is incorrect as Gamma rays are too small and would just penetrate any smoke particles.

C is incorrect because Gamma rays are used to disinfect food products to prevent food borne illness. Irradiation is safe to use on food and does not make it radioactive.

Thus, D is correct.

6 0
2 years ago
. how many lone pairs of electrons are present in the lewis structure of calcium sulfide?
miv72 [106K]
Answer:
            <u>Four</u>

Explanation:
                     Calcium Sulfide is an ionic compound made up of Ca²⁺ and S²⁻.
Ca²⁺ is formed as,

                                   Ca    →    Ca²⁺  +  2 e⁻

These two electrons are accepte by Sulfur as,

                                     S  +  2 e⁻    →    S²⁻

So, before accepting 2 electrons S was having six valence electrons, after accepting two electrons from Ca it has 8 electrons which are present in four pairs as shown below,

7 0
3 years ago
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