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taurus [48]
3 years ago
13

Suggest why there is a lid on the container.

Chemistry
1 answer:
mario62 [17]3 years ago
4 0

So what ever that is in the jar dont spill out and it be no  good thats why you keep a lid on things
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what is the diffrence between displacement ans double displacement reactions write equations for these reactions
Lina20 [59]

Answer:

Single Displacement reaction  

In a displacement reaction, a more reactive element replaces a less reactive element from a compound.

Change in colour takes place with no precipitate forms.

Metals react with the salt solution of another metal.

Examples:

2KI + Cl2 → 2KCl + I2

CuSO4 + Zn → ZnSO4 + Cu

Double displacement reaction

In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.

Precipitate is formed.

Salt solutions of two different metals react with each other.

Examples:  

Na2SO4 + BaCl2 → BaSO4 + 2NaCl

2KBr + BaCl2 → 2KCl + BaBr2

Hope this helps...Please Mark as Brainliest!!

8 0
3 years ago
What conducts better, metal or nometal? <br> why?
Rama09 [41]
Metal because it’s more stronger
8 0
3 years ago
What important result did Becquerel observe when he placed the uranium salt crystals and unexposed photographic film in a drawer
nexus9112 [7]
<span>B) The crystals did not phosphoresce within the drawer but did expose the film</span>
4 0
3 years ago
Read 2 more answers
What is the valence of oxygen
leva [86]

Answer:

-2

Explanation:

eACH ELEMENT HAS AN SPECIFIC VALENCE, FOR EXAMPLE, CARBON (+2),+4 IN THE CASE OF OXYGEN IS -2

7 0
3 years ago
10. Identify the products in the combustion of methane.
Oksanka [162]

Answer:

a. CO2 and H20

Explanation:

Chemically, this combustion process consists of a reaction between methane and oxygen in the air. When this reaction takes place, the result is carbon dioxide (CO2), water (H2O), and a great deal of energy. The following reaction represents the combustion of methane:

CH4[g] + 2 O2[g] -> CO2[g] + 2 H2O[g] + energy

One molecule of methane, (the [g] referred to above means it is gaseous form), combined with two oxygen molecules, react to form a carbon dioxide molecule, and two water molecules usually given off as steam or water vapor during the reaction and energy.

8 0
2 years ago
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