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1 year ago

If you heat a liquid and measure the temperature at which is boils (STATEOF MATTER), you are measuring a

Chemistry

1 answer:

abruzzese [7]1 year ago

5 0

ANSWER

The temperature at which it boils is a measure of its physical property

STEP-BY-STEP EXPLANATION:

Firstly, we need to define the physical and chemical property of matter

The physical property of matter is characteristic of matter that is not associated with a change in its chemical composition. The physical properties include; <em>color, density, hardness, melting, and boiling point.</em>

The chemical property of matter is characteristic of matter that is associated with a change of matter from one type to another type. The chemical properties include; <em>Flammability, toxicity, acidity, reactivity, etc.</em>

When a liquid is boiled, it changes its state from liquid to vapor, this change of state is associated with the physical property of matter.

Hence, the temperature at which it boils is a measure of its physical property

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Calculate the mass of a liquid with a density of 3.2 g/ml and a volume of 25 ml

erma4kov [3.2K]

The equation is x/25=3.2
*25 *25
-------------
x=80g

4 0

3 years ago

The reaction rate is k[Ce4+][Mn2+] for the following reaction: 2Ce4+(aq) + Tl+(aq) + Mn2+(aq) → 2Ce3+(aq) + Tl3+(aq) + Mn2+(aq W

sdas [7]

Answer:

Manganese (II) ion, Mn²⁺

Explanation:

Hello,

In this case, given the overall reaction:

$2Ce^{4+}(aq) + Tl^+(aq) + Mn^{2+}(aq) \rightarrow 2Ce^{3+}(aq) + Tl^{3+}(aq) + Mn^{2+}(aq)$

Thus, since manganese (II) ion, Mn²⁺ is both at the reactant and products, we infer it is catalyst, since catalysts are firstly consumed but finally regenerated once the reaction has gone to completion. Moreover, since inner steps are needed to obtain it, we can infer that the given rate law corresponds to the slowest step that is related with the initial collisions between Ce⁴⁺ and Mn²⁺

Best regards.

8 0

4 years ago

How does a chemical indicator work ?

sukhopar [10]

PH indicators detect the presence of H+ and OH-. They do this by reacting with H+ and OH-: they are themselves weak acids and bases. If an indicator is a weak acid and is coloured and its conjugate base has a different colour, deprotonation causes a colour change.

5 0

3 years ago

Read 2 more answers

Please help me what is the answer

Sladkaya [172]

There are 20.8 moles of propanol

<h3>Further explanation </h3>

The mole is the number of particles(molecules, atoms, ions) contained in a substance

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

1.2 x 10⁵ molecules of propanol

$\tt \dfrac{1.25\times 10^{25}}{6.02\times 10^{23}}=20.8~moles$

6 0

3 years ago

N2(g) + 3H2-> 2NH3(g) How many grams of ammonia (NH3) can be produced from the reaction of 28.0 g of N2 and 25.0 g of H2?

Mars2501 [29]

Answer:

34 g of NH₃ were produced in the reaction

Explanation:

N₂ (g) + 3H₂ (g) → 2NH₃ (g)

Moles of N₂ → 28 g / 28 g/m = 1 mol

Moles of H₂ → 25g / 2 g/m = 12.5 moles

Clearly, the limiting is the nitrogen.

1 mol of N₂ produced 2 moles of ammonia

So, If I have 1 mol, I'll produce the same amount

2 moles of NH₃ = Mol . Molar mass

2 m . 17 g/m = 34 g

4 0

3 years ago