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marshall27 [118]
3 years ago
9

Write E in the blank if the material is heterogeneous or O if it is homogeneous.

Chemistry
1 answer:
Strike441 [17]3 years ago
5 0
1. Wood - Heterogeneous
2. Coffee - Homogeneous
3. Water - Homogeneous
4. Lucky Charms - Heterogeneous
5. Salt - Homogeneous
6. Dirt - Heterogeneous
7. Pizza - Heterogeneous
8. Air - Homogeneous
9. Milk - Heterogeneous
10. Gold - Homogeneous
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Describe how to make 1.50 liters of a 0.01 M ammonium chloride solution
Charra [1.4K]
Hello!

To know how many grams of Ammonium Chloride ( a solid) you'll need to make 1.50 L of a 0,01 M solution you'll need to use the definition of molar concentration (M=mol/L) in the following way:

1,50 L* \frac{0,01 mol NH_4Cl}{1L}* \frac{53,489gNH_4Cl}{1 mol NH_4Cl}=0,8023 g NH_4Cl

So, you'll need to dissolve 0,8023 g of Ammonium Chloride in 1,5 L of water to make this solution.

Have a nice day!
4 0
3 years ago
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BlackZzzverrR [31]

Answer:

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When is a Roman numeral most likely needed in the name of an ionic compound
Inessa [10]

Answer:

When the metal of the ionic compound has multiple oxidation states.

Explanation:

Nickel (Ni - At No 28) has multiple oxidation states* => −2, −1, 0, +1,[2] +2, +3, +4[3] (a mildly basic oxide)*. When naming compound of nickel on needs to include a roman numeral in parenthesis after the symbol of the element in order to identify which oxidation state is relevant.

examples

Nickel Halide derivatives include

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NiCl₂ => nickel(II) chloride

NiCl₃ => nickel (III) chloride

Such is important in that each of the compounds have different physical and chemical properties due to variations in oxidation states of nickel.

https://en.wikipedia.org/wiki/Nickel

5 0
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Which best defines a service? a task that is performed in exchange for payment an object that is acquired a plan that is execute
tatiyna

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all of the other answers do not pertain to the question

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2 years ago
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