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damaskus [11]
3 years ago
10

Which is a homogeneous mixture

Chemistry
2 answers:
Andrew [12]3 years ago
4 0

Answer:

Explanation:

A mixture is formed by the combination of two or more compounds.

A mixture can be classified into homogeneous or heterogeneous.

If after mixing two or more compounds we can identify the different compounds (phases), that is a heterogeneous mixture. This is easy to notice because the different phases has different characteristics like color, density, states (solid, liquid, gas), etc.

And, if after mixing two or more compounds we cannot see those differents compunds (phases) and we can see just one phase with the same characteristics of color, density, states, etc., that is a homogeneous mixture.

<u>Examples:</u>

- If you mix <u>water and alcohol</u>, we cannot see any difference, the whole mixture has the same color, density and it is liquid, so it is a <u>homogeneous mixture</u>.

- If you mix <u>water and cooking oil</u> in a glass, two different phases appear, with diffrent color and different density. Water phase stays on the bottom of the glass and the cooking oil phase stays on the top of the glass, so it is a <u>heterogeneous mixture</u>.

klemol [59]3 years ago
3 0
A homogeneous mixture is a mixture that is mixed so well together that you cannot see the different components that make up the mixture as the ingredients will not separate out, even over time.  
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nexus9112 [7]

Answer:

a)M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88 g/mol

b) if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

Explanation:

0.2000 gHZ gives  100ml acid solution

33.5 ml of 0.1025 M NaOH  is required to prepare it

the moles = mass / molar mass

mass = 0.200 gHZ

moles = 0.0335*100 * 0.1025 = 0.034

therefore molar mass = mass / moles

                                  M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88

if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

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DanielleElmas [232]

Answer:

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Explanation:

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How many grams in 6.20 x 10^25 atoms of bromine (Br) ? image attached , will give brainliest
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Answer:

8239.2g

Explanation:

Given parameters:

Number of atoms in Br  = 6.2 x 10²⁵atoms

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Mass of Br = ?

Solution:

From mole concepts, we know that:

       1 mole of a substance contains 6.02 x 10²³ atoms/mol

 Molar mass of Br  = 80g/mol

6.2 x 10²⁵atoms  x \frac{1}{6.02 x 10^{23} } \frac{mol}{atoms} x  80 x \frac{g}{moles}  

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Daniel [21]

Answer:

The four coefficients in order, separated by commas are 1, 8, 5, 6

Explanation:

We count the atoms in order to balance this combustion reaction. In combustion reactions, the products are always water and carbon dioxide.

C₅H₁₂  +  ?O₂→  ?CO₂ + ?H₂O

We have 12 hydrogen in right side and we can balance with 6 in the left side. But the number of oxygen is odd. We add 2 in the  right side, so we have 24 H, and in the product side we add a 12.

As we add 2 in the C₅H₁₂, we have 10 C, so we must add 10 to the CO₂ in the product side.

Let's count the oxygens: 20 from the CO₂ + 12 from the water = 32.

We add 16 in the reactant side. Balanced equation is:

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We also can divide by /2 in order to have the lowest stoichiometry

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Answer:

deep blue solution of tetramminecopper [Cu(NH3)4]2+ complex ion.

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