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3 years ago

What is the difference between covalent bonds and ionic bonds masteringbiology?

1 answer:

7 0

Ionic bonds involve the transfer of electrons from metal to non metal
covalent bonds involve sharing of electrons between two non metal

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Suppose 2.2 g of hydrochloric acid is mixed with 1.61 g of sodium hydroxide. Calculate the maximum mass of sodium chloride that

kaheart [24]

Answer:

We can produce 2.35 grams sodium chloride

Explanation:

Step 1: Data given

Mass of hydrochloric acid = 2.2 grams

Molar mass of hydrochloric acid (HCl)= 36.46 g/mol

Mass of sodium hydroxide = 1.61 grams

Molar mass of sodium hydroxide = 40.0 g/mol

Step 2: The balanced equation

HCl + NaOH → NaCl + H2O

Step 3: Calculate moles HCl

Moles HCl = mass HCl / molar mass HCl

Moles HCl = 2.2 grams / 36.46 g/mol

Moles HCl = 0.0603 moles

Step 4: Calculate moles NaOH

Moles NaOH = 1.61 grams / 40.0 g/mol

Moles NaOH = 0.0403 moles

Step 5: Calculate the limiting reactant

NaOH is the limiting reactant. It will completely be consumed (0.0403 moles). HCl is in excess. There will react 0.04025 moles. There will remain 0.0603 -0.0403 = 0.0200 moles

Step 6: Calculate moles sodium chloride

For 1 mol HCl we need 1 mol NaOH to produce 1 mol NaCl and 1 mol H2O

For 0.0403 moles NaOH we'll have 0.0403 moles NaCl

Step 7: Calculate mass NaCl

Mass NaCl = moles NaCl * molar mass NaCl

Mass NaCl = 0.0403 moles * 58.44 g/mol

Mass NaCl = 2.35 grams

We can produce 2.35 grams sodium chloride

8 0

4 years ago

Which is an element? A) alcohol B) sodium C) sugar D) water

hichkok12 [17]

The answer is B, sodium is an element.

7 0

3 years ago

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What would make bromine, a group 17 element, more similar to a noble gas?

nlexa [21]

Thank you so much men nice well

5 0

3 years ago

Identify the missing species in each nuclear equation. Replace the question marks with the appropriate integer or symbol. Be410⟶

astraxan [27]

Answer:

1. ¹⁰₄Be ---> ¹⁰₅B + ⁰₋₁β

2. ³⁴₁₄Be ---> ³⁴₁₅P + ⁰₋₁β

3. ¹⁹²₇₈Pt -----> ¹⁹⁰₇₆Os + ⁴₂α

4. ²⁸₁₂Mg ---> ²⁸₁₃Al + ⁰₋₁β

Explanation:

1. In the first equation, Beryllium-10 isotope undergoes beta-decay, emitting a beta-particle to form boron-10 isotope. The balanced nuclear equation is given below:

¹⁰₄Be ---> ¹⁰₅B + ⁰₋₁β

2. In this reaction, silicon-34 isotope undergoes beta-decay, emitting a beta-particle to form phosphorus-34 isotope. The balanced nuclear equation is given below:

³⁴₁₄Be ---> ³⁴₁₅P + ⁰₋₁β

3. In this equation, platinum-192 isotope undergoes alpha-particle decay emitting an alpha-particle to form osmium-190 isotope. The balanced nuclear equation is given below:

¹⁹²₇₈Pt -----> ¹⁹⁰₇₆Os + ⁴₂α

4. In this equation, magnesium-28 isotope undergoes beta-decay, emitting a beta-particle to form aluminum-28 isotope. The balanced nuclear equation is given below:

²⁸₁₂Mg ---> ²⁸₁₃Al + ⁰₋₁β

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3 years ago

Although incineration can break down harmful chemicals, the byproduct is hazardous.

cestrela7 [59]

A, true is the answer and cluke u help me please

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3 years ago

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