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3 years ago

Which of the following is true about an ionic compound?

Chemistry

2 answers:

Yuri [45]3 years ago

4 0

Answer:

The true ones are

B. It is held together by ionic bonds.

C. It is composed of anions and cations

Explanation:

A is not true because even though it is true that a salt is an ionic compound, some ionic compounds are not salts. Some are metal oxides, some are acids, bases and a variety of different compounds which, though ionic are not salts

Genrish500 [490]3 years ago

3 0

D. all of the above because ionic compound is a salt. it is also held together by ionic bonds. it has anions and cations

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What is the mass of 4.91 x10^21 platinum atoms?

irina [24]

To calculate the mass, go from atoms to moles and moles to grams:

Atoms ........ Moles.......... Grams

From atoms to moles, use the Avogadro’s no. which is 6.022 x 10^23 and from moles to grams use atomic mass of Pt that is 195.08g.

So, 4.91 x 10^21 Pt atoms x (1 mole Pt / 6.022x10^23 Pt atoms) x (195.08g Pt / 1 mole Pt) = 1.59g Pt

Mass of 4.91 x 10^21 Pt atoms = 1.59g Pt

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3 years ago

Read 2 more answers

Calcium + nitrous acid → calcium nitrite + nitrogen monoxide + water

erastovalidia [21]

Answer:

It is double displacement reaction

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3 years ago

How do I indicate if the element is ionic or covalent?

vampirchik [111]

Answer:

There is a couple different ways to determine if a bond is ionic or covalent. By definition, an ionic bond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals. So you usually just look at the periodic table and determine whether your compound is made of a metal/nonmetal or is just 2 nonmetals.

Explanation:

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4 years ago

Which of the following greatly contributes to the cause of tides?

Alla [95]

I think the answer is D?

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3 years ago

Suppose 'A' is a liquid aromatic compound with molecular weight 78 and burns with sooty flame. a.Give the name of the compound '

Oliga [24]

Aromatic compounds are compounds that contain carbon-carbon multiple bonds.

The question did not mention that a heteroatom is present in the compound so we can assume that there is none of such. In that case, the compound contains only hydrogen and carbon.

So,

(CH)n = 78

where n is the number of each atom present.

(12 +1)n = 78

n = 78/13

n = 6

The molecular formula of the compound is C6H6

When C6H6 is treated with .conc.HNO3/conc.H2SO4 the compound shown in image 1 is formed. The reaction occurs at the C-C multiple bond.

When C6H6 is reacted with chlorine in the presence of sunlight, hexachlorobenzene (shown in image 2 attached) is formed.

brainly.com/question/24305135

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3 years ago