What is the correct name for CaS04? (a) calcium sulfoxide (b) calcium sulfite (c) calcium sulfur oxide (d) calcium sulfate (e) c
2 answers:
<u>Answer:</u> The name of is calcium sulfate.
<u>Explanation:</u>
An ionic compound is defined as the compound which is formed when electron gets transferred from one atom to another atom. These are usually formed when a metal reacts with a non-metal or a metal reacts with a polyatomic ion or a reaction between two polyatomic ions takes place.
is an ionic compound because calcium element is a metal and sulfate ion is a polyatomic ion. The bond formed between a metal and a non-metal is always ionic in nature.
The nomenclature of ionic compounds is given by:
- Positive ion is written first.
- The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.
- In case of polyatomic ions, the name of the ion is written as such. <u>For Example:</u>
is named as hydroxide,
is named as sulfate and so on..
Hence, the name of is calcium sulfate.
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Answer:
<h2>mass = 29.25 g</h2>Explanation:
The denisty of a substance can be found by using the formula
Making mass the subject we have
<h3>mass = Density × volume</h3>From the question
Density = 2.34 g/mL
volume = 12.50 mL
Substitute the values into the above formula and solve for the mass
That's
mass = 2.34 × 12.50
We have the final answer as
<h3>mass = 29.25 g</h3>Hope this helps you