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shtirl [24]
3 years ago
14

Name the following ionic compounds: (a) Na2SO4, (b)Cu(NO3)2 (c) Fe2(CO3)3

Chemistry
1 answer:
Sindrei [870]3 years ago
5 0

Answer and Explanation:

(a) Na_2So_4 : its chemical name is sodium sulfate in which sodium is present as Na_2^+ and sulfate is present as So_4^{2-}

(b) Cu(NO_3)_2 : Its chemical name is copper nitrate which is a inorganic compound which is mostly crystalline in nature

(c)Fe_2(Co_3)_2 : Its chemical name is iron carbonate or ferric carbonate

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Hydrofluoric acid (HF) can be prepared according to the following equation:
Artemon [7]

Given the balanced equation:

( Reaction type : double replacement)

CaF2 + H2SO4 → CaSO4 + 2HFI

We can determine the number of grams prepared from the quantity of 75.0 H2SO4, and 63.0g of CaF2 by converting these grams to moles per substance.

This can be done by evaluating the atomic mass of each element of the substance, and totaling it to find the molecular mass.

For H2SO4 or hydrogen sulfate it's molecular mass is the sum of the quantity of atomic mass per element. H×2 + S×1 + O×4 = ≈1.01×2 + ≈32.06×1 + ≈16×4 = 2.02 + 32.06 + 64 = 98.08 u (Dalton's or Da) or g / mol.

For CaF2 or calcium fluoride, it's molecular mass adds 1 atomic mass of calcium and 2 atomic masses of fluoride due to the number of atoms.

Ca×1 + F×2 = ≈40.07×1 + ≈19×2 = 40.08 + 38 = 78.07 u (Da or Dalton's) or g / mol.

3 0
3 years ago
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So i have this question for science.- What is the element with the atomic number 7. Thank you.
vredina [299]

Answer: the atomic number 7 is

Nitrogen

Explanation:

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3 years ago
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Which statements are true of the reaction below? 2na(s) + cl2(g) 2nacl(s) Check all that apply. A - NaCl is a product B - Na(s)
Bumek [7]

Answer:

A - NaCl is a product

D - Cl2 is a gas

Explanation:

Based on the chemical reaction;

2Na(s) + Cl2(g) → 2NaCl2

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  • In the chemical reaction, sodium and chlorine are reactants while sodium chloride is the product.
  • Additionally the chemical reaction above is balanced so as to obey the law of conservation of mass.
4 0
3 years ago
A.<br> B.<br> C.<br> D.<br><br> what could be the correct answer? Help me please
AlladinOne [14]

Answer:

A

Explanation:

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2 years ago
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What is the primary cause of diffusion? 1.that some substances can dissolve in solvents 2.heat added to a substance 3.random int
shusha [124]
Diffusion : a process in which molecules intermingle as a result of  their kinetic energy of random motion
The primary cause of diffusion is : 3. Random internal motion of atoms and molecules

hope this helps
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3 years ago
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