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3 years ago

Which of the following statements is true about the specific heat capacity of a substance?

Chemistry

1 answer:

Ludmilka [50]3 years ago

6 0

Answer:

Option A

Explanation:

An intensive property is a bulk property, meaning that it is a local physical property of a system that does not depend on the system size or the amount of material in the system. Examples of intensive properties include temperature, T; refractive index, n; density, ρ; and hardness of an object,specific heat, η.

Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter. Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, specific heat and many others.

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Write a net ionic equation for the reaction that occurs when excess hydrochloric acid (aq) and potassium sulfite (aq) are combin

Ket [755]

<u>Answer:</u> The net ionic equation for the given reaction is $2H^+(aq.)+SO_3^{2-}(aq.)\rightarrow H_2O(l)+SO_2(g)$

<u>Explanation:</u>

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are the ions which do not get involved in a chemical equation. It is also defined as the ions that are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of hydrochloric acid and potassium sulfite is given as:

$2HCl(aq.)+K_2SO_3(aq.)\rightarrow 2KCl(aq.)+SO_2(g)+H_2O(l)$

Ionic form of the above equation follows:

$2H^+(aq.)+2Cl^-(aq.)+2K^+(aq.)+SO_3^{2-}(aq.)\rightarrow 2K^+(aq.)+2Cl^-(aq.)+SO_2(g)+H_2O(l)$

As, potassium and chloride ions are present on both the sides of the reaction, thus, it will not be present in the net ionic equation.

The net ionic equation for the above reaction follows:

$2H^+(aq.)+SO_3^{2-}(aq.)\rightarrow SO_2(g)+H_2O(l)$

Hence, the net ionic equation for the given reaction is written above.

7 0

2 years ago

Please help me !!!!?:(

atroni [7]

True, a lunar eclipse occurs when the Moon is between the Sun and Earth

7 0

2 years ago

The mass of a large order of french fries is about 170 G what is its approximate weight in pounds

kap26 [50]

Answer:

0.374 Pound Approximately

Solution:

Gram and Pound are related as,

1 Gram = 0.0022 Pound (approximately)

As we are given with 170 g of French Fries, so it can be converted into pounds as,

1 Gram = 0.0022 Pound

So,

170 Grams = X Pounds

Solving for X,

X = (170 Gram × 0.0022 Pounds) ÷ 1 Gram

X = 0.374 Pound Approximately

8 0

3 years ago

The ability to perceive others' emotions can be attributed to which of the following parts of the brain?

Marina86 [1]

It is a .......................................................................

5 0

2 years ago

The element krypton (symbol: Kr) has several radioactive isotopes. Here

Dovator [93]

Answer:

Kr-81 is most stable because of its high half lige and kr-73 is the most radioactive because of its least half life

Explanation:

Stability is directly proportional to half life of a reaction

3 0

2 years ago