All categories

3 years ago

What is the difference between a substance and mixture ?

Chemistry

1 answer:

snow_lady [41]3 years ago

6 0

Explanation:

Matter can be categorized into substances and mixtures.

Matter is anything that has mass and occupies spaces.

Substances are distinct matter with the following properties:

All parts are the same throughout i.e homogeneous
Their composition is definite
They cannot be easily separated or broken down into simpler substances by physical means
Separation by physical means is not easy
They have a unique set of physical properties.

Mixtures have the following properties:

Their composition is indefinite i.e they consist of two or more elements and/or compounds in any proportion by mass
Their constituents retains their identity
They can easily be separated by physical means
They have a broad range of physical properties.

Learn more:

Mixtures brainly.com/question/1446244

#learnwithBrainly

You might be interested in

For the following reaction if you have 13.2g of CO and 42.7g of Fe2O3, which is the limiting reagent with regards to the Fe prod

MrRissso [65]

Answer: CO is a limiting reagent with regards to the Fe production.

Explanation:

$Fe_2O_3(s)+3CO(g)\rightarrow 2Fe(s)+3CO_2(g)$

Moles of CO = $\frac{\text{mass of CO}}{\text{molar mass of CO}}=\frac{13.2 g}{28 g/mol}=0.4714 mol$

moles of $Fe_2O_3=\frac{\text{mass of} Fe_2O_3}{\text{molar mass of}Fe_2O_3}=\frac{42.7 g g}{159.7 g/mol}=0.2673 mol$

According to reaction , 3 mole of CO reacts with 1 mole of $Fe_2O_3$ then , 0.4714 moles of CO will react with : $\frac{1}{3}\times 0.4714$ moles of $Fe_2O_3$ that is 0.1571 moles.

0.4714 moles of CO will react with 0.1571 moles of $Fe_2O_3$ which means that CO is present in limited amount acting as limiting reagent.

Mole remaining of $Fe_2O_3$ = 0.2673 mol - 0.1571 mol = 0.1102 mol

Hence, CO is a limiting reagent and $Fe_2O_3$ is an excessive reagent.

8 0

3 years ago

Need chemistry help look on the picture answer all questions please

pychu [463]

1. Aqeuous or dissolved
2.AgNO3+ NaCl are reactants
3. NaNO3 is precipitate
4. Reaction is endothermic(Delta stands for Heat)
5. Neither a reactant nor a product, MnO2 is a catalyst

Please Mark Brainliest. Hope the Answer helps

6 0

2 years ago

Lens coating are made of A.teflon B.bakelite C.melamine D.PVC

suter [353]

Answer:

C. melamine

Explanation:

a thin coating that eliminates reflections and glare from the front and back surfaces of your lenses.

5 0

2 years ago

Which of the following wouldn't be a good tool to use when measuring pH values of solutions?

aev [14]

litmus paper

Because it will just tell if the solution is acidic or basic, it won't tell the pH

4 0

2 years ago

Read 2 more answers

Sulfur burns in the air to form 33.6L of sulfur dioxide. (S = 32, O =16, 64g of sulfur dioxide has 22.4L, 32g of oxygen has 22.4

ivolga24 [154]

The mass of oxygen reacted/required in this reaction is obtained as 48g.

<h3>What is stoichiometry?</h3>

The term stoichiometry has to do with mass- volume or mass - mole relationship which ultimately depends on the balanced reaction equation.

Now, we have the reaction; S + O2 ------>SO2

If 1 mole of sulfur dioxide contains 22.4 L

x moles of sulfur dioxide contains 33.6L

x = 1.5 moles of sulfur dioxide.

Since the reaction is 1:1, the number if moles of oxygen required/reacted is 1.5 moles.

Mass of oxygen required/reacted = 1.5 moles * 32 g/mol = 48g

Learn more anout stoichiometry: brainly.com/question/9743981

8 0

1 year ago