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2 years ago

Is my answer right? i have a feeling its not correct

Chemistry

1 answer:

mr_godi [17]2 years ago

5 0

Temperature is usually defined as a measure of the warmth or coldness of an object or substance. Your answer is, correct do not worry.

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What kind of electrons are involved in chemical bonding?

mamaluj [8]

Bonding electrons are involved in chemical bonding these electrons have their valnce shell incomplete

6 0

3 years ago

. Sulfur dioxide can be produced in the laboratory by the reaction of hydrochloric acid and a sulfite salt such as sodium sulfit

shutvik [7]

Answer:

Mass of SO₂ can be made from 25.0 g of Na₂SO₃ and 22 g of HCl = 12.672 g

Explanation:

SO₂( sulfur dioxide) can be produced in the lab. by the reaction of hydrochloric acid & sulphite salt such as sodium.

the balanced chemical equation is as follows

Na₂SO₃ + 2 HCl → 2 NaCl + SO₂ + H₂O

Moles of Na₂SO₃ = $\frac{Mass}{Molecular mass} =\frac{25}{126} = 0.198$

Moles of HCl = $\frac{mass}{molecular mass}=\frac{22}{36.5}= 0.6$

using mole ratio method to find limiting reagent

For sodium sulfite $\frac{mole}{stoichiometry} = \frac{0.198}{1}= 0.198$

for HCl $\frac{mole}{stoichiometry} = \frac{0.6}{2}= 0.3$

since sodium sulfite is limiting reactant for above chemical reaction

1 mole of Na₂SO₃ produce 1 mole of SO₂

0.198 mole of Na₂SO₃ produce 0.198 mole of SO₂

∴ Mass of SO₂ produce = mole x molar mass of SO₂

= 0.198 x 64

= 12.672 g

8 0

3 years ago

If a vessel at this temperature initially contains pure sulfur trioxide and if the partial pressure of sulfur trioxide at equili

inessss [21]

Answer: 2 SO2 (g) + O2 (g) Kp = 7.69 If a vessel at this temperature initially ... and if the partial pressure of sulfur trioxide at equilibrium is 0.100 atm,

Explanation:

6 0

3 years ago

Animals use oxygen in the process of blank and emit CO2 as a byproduct.

Temka [501]

Answer:

Respiration

Explanation:

The act of breathing, simple as that!

Hope this helped!!

4 0

2 years ago

How many moles of each element (C, H, and O) are present in a 100.0 g sample of ethanol?

Anuta_ua [19.1K]

Answer:

2.173 moles of ethanol is presented in a 100.0g sample of ethanol .

Explanation:

The amount of substance that contains as many Particles as there are atoms in exactly 12g of carbon- '12 isotope is called 1 mole '= 46 u.

7 0

3 years ago