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4 years ago

Definition: This is a property of matter that can be identified without changing the identity of the substance.

Chemistry

2 answers:

Zielflug [23.3K]4 years ago

6 0

Answer is: physical property

Ket [755]4 years ago

4 0

Answer:

physical property

Explanation:

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Balance the following redox equation in acidic solution using the smallest integers possible and select the correct coefficient

romanna [79]

Answer:

Coefficient of $H^{+}(aq)$ is more than 4

Explanation:

Oxidation: $Sn^{2+}(aq)\rightarrow Sn^{4+}(aq)$

Balance charge: $Sn^{2+}(aq)-2e^{-}\rightarrow Sn^{4+}(aq)$ ......(1)

Reduction: $Cr_{2}O_{7}^{2-}(aq)\rightarrow Cr^{3+}(aq)$

Balance Cr: $Cr_{2}O_{7}^{2-}(aq)\rightarrow 2Cr^{3+}(aq)$
Balance O and H in acidic medium: $Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)\rightarrow 2Cr^{3+}(aq)+7H_{2}O(l)$
Balance charge: $Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)+6e^{-}\rightarrow 2Cr^{3+}(aq)+7H_{2}O(l)$ .......(2)

$[3\times Equation-(1)]+Equation(2)$ gives balanced equation:

$3Sn^{2+}(aq)+Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)\rightarrow 3Sn^{4+}(aq)+2Cr^{3+}(aq)+7H_{2}O(l)$

So coefficient of $H^{+}(aq)$ is more than 4

3 0

3 years ago

A student swings his keychain around in a circle. What is the source of the centripetal force for this action?

Arada [10]

Well its not gravity if that helps any

6 0

3 years ago

What is a mixture in which the particles are big enough to see

daser333 [38]

It looks red because you can see the red gelatin particles in the mixture. However, the particles are too small to settle to the bottom of the dish. A suspension is a heterogeneous mixture with large particles. The particles are large enough to see and also to settle or be filtered out of the mixture

5 0

3 years ago

What is the mass in grams of 366mL of ethylene glycol

pshichka [43]

Answer:

$m=406.26g$

Explanation:

Hello,

In this case, since the density is defined as the degree of compactness of a substance and it mathematically defined as the ratio of the mass and volume:

$\rho = \frac{m}{V}$

By knowing that its density is 1.11 g/mL, the mass in 366 mL is:

$m=\rho V=366mL*1.11\frac{g}{mL}\\ \\m=406.26g$

Regards.

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4 years ago

Difference between saturated and supersaturated solutions

Luba_88 [7]

Saturated had as much solute that it can hold, supersaturated holds more than can normally be dissolved.

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4 years ago