All categories

3 years ago

Which is the following describes a solution?

Chemistry

2 answers:

Dvinal [7]3 years ago

8 0

A solution is uniform throughout, so your answer is the first one.

TiliK225 [7]3 years ago

6 0

Hey there!

<span>Which is the following describes a solution?

A solution can be separated by a physical means and IS uniform in composition. The other option is not it since a solution IS in uniform composition. This means your answer is the first option.

Hope this helps
Have a great day (:
</span>

You might be interested in

A 1.24g sample of a hydrocarbon, when completely burned in an excess of O2 yields 4.04g Co2 and 1.24g H20. Draw plausible struct

arsen [322]

Answer:

Plausible structure has been given below

Explanation:

Molar mass of $CO_{2}$ is 44 g/mol and molar mass of $H_{2}O$ is 18 g/mol
Number of mole = (mass/molar mass)

4.04 g of $CO_{2}$ = $\frac{4.04}{44}moles$ $CO_{2}$ = 0.0918 moles of $CO_{2}$

1 mol of $CO_{2}$ contains 1 mol of C atom

So, 0.0918 moles of $CO_{2}$ contains 0.0918 moles of C atom

1.24 g of $H_{2}O$ = $\frac{1.24}{18}moles$ $H_{2}O$ = 0.0689 moles of $H_{2}O$

1 mol of $H_{2}O$ contain 2 moles of H atom

So, 0.0689 moles of $H_{2}O$ contain $(2\times 0.0689)moles$ of $H_{2}O$ or 0.138 moles of $H_{2}O$

Moles of C : moles of H = 0.0918 : 0.138 = 2 : 3

Empirical formula of hydrocarbon is $C_{2}H_{3}$

So, molecular formula of one of it's analog is $C_{4}H_{6}$

Plausible structure of $C_{4}H_{6}$ has been given below.

4 0

3 years ago

Direction is the path along which something is moving. Which of these words can be used to describe the direction of an object r

fiasKO [112]

Distance

an amount of space between two things or people.

3 0

3 years ago

Read 2 more answers

Show the calculation of the energy involved in condensation of 150 grams of steam at 100oC if the Heat of Vaporization for water

vaieri [72.5K]

Answer : The energy involved in condensation is, 339 kJ

Explanation :

Formula used :

$q=m\times L$

where,

q = heat required = ?

L = latent heat of vaporization of water = $2.26kJ/g$

m = mass of water = 150 g

Now put all the given values in the above formula, we get:

$q=(150g)\times (2.26kJ/g)$

$q=339kJ$

Therefore, the energy involved in condensation is, 339 kJ

4 0

3 years ago

Please help I’ll mark brainliest :)

DerKrebs [107]

Answer:

Biotechnology is the use of living organisms through modification to make products of technological or industrial significance.

positively, biotechnology can be used in manufacture of medicine and also synthetic forms of various hormones for use in the health and medical field.

negatively biotechnology may be manipulated for use in wars as biological warfare that can lead to loss of lives and environmental degradation

Explanation:

4 0

3 years ago

Read 2 more answers

10. Translate each of the following chemical equations into a sentence.

Fofino [41]

Answer:

a) $2ZnS(s)+3O_2(g)\rightarrow 2ZnO(s)+2SO_2(g)$

2 moles of Zinc sulphide in solid form reacts with 3 moles of Oxygen in gaseous form to give 2 moles of Zinc oxide in solid form and 2 moles of sulphur dioxide in gaseous form.

b) $CaH_2(s)+2H_2O(l)\rightarrow Ca(OH)_2 aq)+2H_2(g)$

1 mole of calcium hydride in solid form reacts with 2 moles of liquid water to give 1 mole of calcium hydroxide dissolved in water and 2 moles of hydrogen in gaseous form.

The chemical reactions are written by writing the chemical formula of the reactants on left side of the arrow followed by chemical formula of the products. The number of atoms of each element must be balanced to follow the law of conservation of mass.

8 0

3 years ago