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Fiesta28 [93]
2 years ago
5

HELP ME PLZ

Chemistry
1 answer:
Alex73 [517]2 years ago
8 0
The answer should be The Tyndall Effect
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09:10 .l . KS
Trava [24]

Answer:

B. Soap solution

Explanation:

Hardness of water refers to the degree of calcium and magnesium in the water. In other words, hard water contains excessive mineral contents. The degree of hardness of a water body can be measured using the SOAP TEST KIT.

Due to the formation of insoluble minerals, soap forms an exvessive substance in the presence of hardwater because the particles or minerals contained in the water is reacting to form something insoluble. Hence, a SOAP test kit can be used to test the hardness of water.

4 0
3 years ago
Please helppppppppppppppppppppppppppppppppppppppppp
olganol [36]
The answer is to heat the water up to increase the rate that which it dissolves
7 0
3 years ago
Read 2 more answers
Silver has a density of 10.5 grams/cm3. What would be the mass of a 5 cm3 piece of sliver
enyata [817]

Answer:

52.5 g

Explanation:

Density= mass/volume

Rearranging the equation gives us m= d(V)

m= d(V)

m= (10.5 grams/cm^3)(5 cm^3)

m= 52.5 g

8 0
3 years ago
How can exposoure to high energy waves be both harmful and helpful to cells??
belka [17]
Exposure to high energy waves can be helpful to cells by damaging DNA in cells, meaning if somebody were to have cancer cells it breaks down the bad cells and it can shrink tumor. It can be harmful by damaging skin cells, which we need as our first line of defense. Meaning, it could cause skin cancer. Hope this helped!
3 0
3 years ago
Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is this?
Dima020 [189]
FeO + Al -> AlO + Fe 

As you can see, this type of reaction would lead to be a Single Placement (or Replacement) reaction!

Hope this helps! Best wishes!
3 0
3 years ago
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