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Brrunno [24]
3 years ago
13

4. Given the chemical formulas of the following compounds, name each compound and state the rules you used to determine each nam

e.
• RbF
• CuO
• (NH4)2C2O4
(Note: C2O4– is called oxalate.)
Answer:
Chemistry
2 answers:
earnstyle [38]3 years ago
3 0
I honestly dont even kno
marissa [1.9K]3 years ago
3 0

I am taking the same test! ;)

1. RbF --> Rubidium Fluoride

Change fluorine to fluoride

2. CuO --> Copper (II) Oxide

Change oxygen to oxide. Oxide has a charge of -2. Since no subscripts are written, it means they have the same opposite charge. So, we use Copper (II).

3. (NH₄)₂C₂O₄ --> Ammonium Oxalate

NH₄ is ammonia, but we change it to ammonium for poly atomic ions. 

I hope this helps!

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A chemist must dilute of aqueous aluminum chloride solution until the concentration falls to . He'll do this by adding distilled
marshall27 [118]

Answer:

0.257 L

Explanation:

The values missing in the question has been assumed with common sense so  that the concept could be applied

Initial volume of the AICI3 solution =23.1 \mathrm{mL}

Initial Molarity of the solution =833 \mathrm{mM}

Final molarity of the solution =75.0 \mathrm{mM}

Final volume of the solution =?

From Law of Dilution, M_{f} V_{f}=M_{i} V_{i}

\Rightarrow V_{f}=\frac{M_{i} V_{i}}{M_{f}}=\frac{833 \mathrm{mM} \times 23.1 \mathrm{mL}}{75.0 \mathrm{mM}}=256.564 \mathrm{mL}=0.256564 \mathrm{L}=0.257 L

Final Volume of the solution =0.257

7 0
3 years ago
H is a chemical _____ and H2 is a chemical ______
jeyben [28]
I don’t know if I am right but I think it is symbol for the first one and the second one is formula.
4 0
3 years ago
Read 2 more answers
Which of the following correctly lists the five atoms in order of increasing size (smallest to
ICE Princess25 [194]

Answer:

F - O - S - Mg - Ba

Explanation:

as you move left to right on the periodic table the number of electrons increase.

7 0
3 years ago
Question 3 of 5
rusak2 [61]

Answer:

A. More mass

C. Shorter distance between them

Explanation:

The two characteristics of a body experiencing greater gravitational force are that they have mass and a shorter distance between them.

This is conformity with Newton's law of universal gravitation.

The law states that "every object attracts one another with a force that is directly proportional to their masses and inversely proportional to the square of the distance between them".

This law implies that the more the mass of two bodies, the more the gravitational force of attraction. And that the shorter the square of the distance between them, the more the attraction.

7 0
3 years ago
How many grams of NaCl (molecular weight = 58.4 g mole-1) would you dissolve in water to make a total volume of 500 mL of soluti
kolezko [41]

Given :

Volume , V = 500 mL .

Molarity , M = 0.5 M .

Molecular mass of NaCl is 58.4\ g/mole .

To Find :

How many grams of NaCl is required .

Solution :

Let , NaCl required is x gram .

Molarity is given by :

M=\dfrac{\text{Number of moles}}{\text{Volume (in liters) }}\\\\M=\dfrac{m}{M\times V}\\\\0.5=\dfrac{x}{58.4\times 0.5}\\\\x=0.5^2\times 58.4\ g\\\\x=14.6\ g

Hence , this is the required solution.

6 0
3 years ago
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