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OLga [1]
3 years ago
11

Symbol for the magnesium oxide reactants​

Chemistry
2 answers:
Stella [2.4K]3 years ago
8 0

Answer:

MgO

Explanation:

Magnesium oxide is formed up of the ions Mg2+ and O2

andreyandreev [35.5K]3 years ago
8 0

Answer:

MgO

Explanation:

Mg2 + O2 is MgO, have a nice day

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Westkost [7]

Answer:

Law of conservation of mass

Ernest Rutherford

Explanation:

The basic law of behavior of matter that states that "mass is neither created nor destroyed in a chemical reaction or physical change".

This is the law of conservation of mass. It is very essential in understanding most chemical reaction. Also, in quantitative analysis, this law is pivotal.

Ernest Rutherford was the scientist that stated that the nucleus is made up of positive charge. It was not until James Chadwick in 1932 discovered the neutron that we had an understanding of this nuclear component.

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Oduvanchick [21]
Remember this. 

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Give an example of each of the following chemical changes.
Andrews [41]

Answer:

Give an example of each of the following chemical changes.

(a) A photochemical reaction involving

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(b) A reaction involving

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(c) Two gases combine to form white solid.

(d) A reaction where colour change is noticed.​

Explanation:

a) A photochemical reaction involving  silver salt is used in black and white photography.

AgCl breaks down and converts into Ag during this photochemical reaction.

(ii) Photochemicalreaction involving water takes place in plants during the photosynthesis process.

Plants prepare food(carbohydrate) by using sunlight water and CO2 gas.

(b) A reaction involving

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When an iron nail is placed in CuSO4 blue color solution, then it changes to green color and reddish-brown solid deposits at the bottom of the container.

(ii) Reaction of ferrous sulfate with NaOH forms a dirty green precipitate of ferrous hydroxide.

(C) Two gases combine and form a white solid:

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