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aliina [53]
3 years ago
5

If you could answer it would be a huge help, thank you!

Chemistry
2 answers:
padilas [110]3 years ago
5 0

A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions .

It is a homogeneous mixture since the components of tap water are blended so that it looks like a single substance, since you only see water and nothing else.

(Heterogenous mixtures are mixtures in which the separate components that make up the substance are visible .)

It is homogeneous too ...

Maru [420]3 years ago
5 0

Answer:

1. A mixture is a material made up of two or more different substances which are physically combined.A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspension and colloids.

2. Tap water is a homogeneous mixture, not heterogeneous. This is because tap water has dissolved minerals inside it, but they are equally distributed throughout the water.

3. 70% rubbing alcohol means that 70% of the molecules in the rubbing alcohol is actually alcohol. The other 30% is water. As I have stated at the start the answer, although alcohol is technically pure, rubbing alcohol is not purely made of alcohol.

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How many grams of CO2 are used when 6.0 g of O2 are produced? Express your answer with the appropriate units.
Ipatiy [6.2K]

Answer:

that is why co2 is in the power of 2ik

8 0
3 years ago
Calculate the average atomic mass of element X using the table below. Then use the periodic table to identify the element. Separ
Ksenya-84 [330]

Answer:

126.8, Iodine

Explanation:

  • mass ×abundance/100
  • (126.9045×80.45/100)+(126.0015×17.23/100)+(128.2230×2.23/100)
  • 102.1+21.7+3=126.8

<em>IODINE</em><em> </em><em>has</em><em> </em><em>an</em><em> </em><em>atomic</em><em> </em><em>mass</em><em> </em><em>of</em><em> </em>126.8 or 126.9

4 0
2 years ago
A 32.2 g iron rod, initially at 21.9 C, is submerged into an unknown mass of water at 63.5 C. in an insulated container. The fin
lorasvet [3.4K]

Answer : The mass of the water in two significant figures is, 3.0\times 10^1g

Explanation :

In this case the heat given by the hot body is equal to the heat taken by the cold body.

q_1=-q_2

m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)

where,

c_1 = specific heat of iron metal = 0.45J/g^oC

c_2 = specific heat of water = 4.18J/g^oC

m_1 = mass of iron metal = 32.3 g

m_2 = mass of water = ?

T_f = final temperature of mixture = 59.2^oC

T_1 = initial temperature of iron metal = 21.9^oC

T_2 = initial temperature of water = 63.5^oC

Now put all the given values in the above formula, we get

32.3g\times 0.45J/g^oC\times (59.2-21.9)^oC=-m_2\times 4.18J/g^oC\times (59.2-63.5)^oC

m_2=30.16g\approx 3.0\times 10^1g

Therefore, the mass of the water in two significant figures is, 3.0\times 10^1g

3 0
3 years ago
Write formulas for the binary ionic compounds formed between the following elements: a. Potassium and iodine b. Magnesium and ch
lianna [129]

i think it's B Magnesium and chlorine



5 0
3 years ago
Write the symbol of magnesium and iron?​
jeyben [28]

The symbol of magnesium is mg and iron is Ir

7 0
3 years ago
Read 2 more answers
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