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Romashka [77]
3 years ago
9

Which property describes a mixture? It cannot be separated by physical methods. It has a single chemical composition. It cannot

have more than one state of matter. It cannot be described by a chemical symbol or formula.
Chemistry
2 answers:
natima [27]3 years ago
7 0

Answer:

it cannot be separated by physical methods

Explanation:

katrin [286]3 years ago
7 0
A: It cannot be separated by physical methods.
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Fe2O3 + 2Al = 2Fe + Al2O3 is this a redox reaction
katovenus [111]

Answer:

<h3>2Al+ Fe2O3 gives 2Fe + Al2O3. The given reaction is a redox reaction. As oxidation and reduction are taking place simultaneously.</h3>

Explanation:

like this...Identify oxidation and reduction with their agents:

<h3>•2Al+ Fe2O3 →2Fe + Al2O3</h3>

<h3>•Fe2O3 is reduced to Fe whereas Al is oxidized to Al2O3</h3>

<h3>In the above reaction:</h3>

<h3>Oxidizing agent:Fe2O3</h3>

<h3>Reducing agent:Al</h3>

I hope it's help you (◠‿・)—☆

5 0
3 years ago
How many moles are in 5.025 grams of NaOH?
yKpoI14uk [10]

Answer:

The SI base unit for amount of substance is the mole. 1 grams NaOH is equal to 0.025001806380511 mole.

8 0
3 years ago
Read 2 more answers
What pressure (in atmospheres) does a gas exert when at 385 mm of Hg?
Westkost [7]
To find out the pressure in atm. You must divide 385 by 760. So pressure in atmospheres equals 385/760.
6 0
3 years ago
What is the molar mass of CaSO4 ?
defon
<span>136.14 g/mol    </span><span><span>Calcium sulfate, Molar mass</span></span>
3 0
3 years ago
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The density of copper is 8.92 g/mL. The mass of a piece of copper that has a volume of 10.3 mL is
m_a_m_a [10]

Answer:

The answer is

<h2>91.9 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of copper = 10.3 mL

density = 8.92 g/mL

The mass is

mass = 8.92 × 10.3 = 91.876

We have the final answer as

<h3>91.9 g</h3>

Hope this helps you

8 0
3 years ago
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