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GrogVix [38]
1 year ago
10

Suggest why some metals will react with hot water but not with cold water. Explain with one example. Draw figure.

Chemistry
1 answer:
Lelechka [254]1 year ago
5 0

The difference in the reactivity of metals accounts for why some metals will react with hot water but not with cold water. For example, aluminum is less reactive than sodium and will only react with hot water but not cold water.

<h3>What is reactivity of metals?</h3>

The reactivity of metals is the ability of a metals to lose electrons.

The reactivity of metals generally decreases from left to right across the periodic table but increases on going down a group.

Due to the differences in reactivity of metals, some metals are more reactive than others.

For example, the reactive metals sodium, potassium and calcium react with cold water to with differing degree of spontaneity to liberate hydrogen.

Some other metal like aluminum, zinc, and  iron can only react with hot water or steam to liberate hydrogen.

Therefore, the reactivity of a metal will determine if it will react with cold water or hot water.

Learn more about reactivity of metals at: brainly.com/question/28107797

#SPJ1

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john roller skates with a constant speed of 8 miles per hour. how long will he take to travel a distance of 28 miles? please use
joja [24]

Answer:

3.5hrs

Explanation:

Using the formula Speed = Distance/Time

Given

Speed = 8mi/hr

Distance = 28miles

Get the time

Time = Distance/Speed

Time = 28/8

Tme = 3.5hrs

Hence it will take 3.5hrs to travel

8 0
3 years ago
A 29.7 g sample of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to
Softa [21]

<u>Answer:</u> The mass of iron in the ore is 10.9 g

<u>Explanation:</u>

We are given:

Mass of iron (III) oxide = 15.6 g

We know that:

Molar mass of Iron (III) oxide = 159.69 g/mol

Molar mass of iron atom = 55.85 g/mol

As, all the iron in the ore is converted to iron (III) oxide. So, the mass of iron in iron (III) oxide will be equal to the mass of iron present in the ore.

To calculate the mass of iron in given mass of iron (III) oxide, we apply unitary method:

In 159.69 g of iron (III) oxide, mass of iron present is (2\times 55.85)=111.7g

So, in 15.6 g of iron (III) oxide, mass of iron present will be = \frac{111.7g}{159.69g}\times 15.6g=10.9g

Hence, the mass of iron in the ore is 10.9 g

7 0
3 years ago
Plz help me... my ppr is gonig on......
anyanavicka [17]

Answer:

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Explanation:

3 0
3 years ago
Read 2 more answers
If 54.9 L of an ideal gas is cooled from 64 degrees C to 7 degrees C, what will the volume of the gas become?
sweet [91]

Answer:

Volume = 45.62L

Explanation:

Data;

V1 = 54.9L

T1 = 64°C = (64 + 273.15)k = 337.15K

T2 = 7°C = (7 + 273.15)k = 280.15K

V2 = ?

From Charles law,

The volume of a fixed mass of gas is directly proportional to its temperature provided that pressure remains constant

V = KT, K = V / T = V1 / T1 = V2 / T2 = V3 / T3 =.........= Vn / Tn

(54.9 / 337.15) = (V2 / 280.15)

V2 = (54.9 * 280.15) / 337.15

V2 = 45.618L

V2 = 45.62L

8 0
3 years ago
What type of salt would you get in a reaction between an oxide and hydrochloric acid?
grandymaker [24]

Answer:

C. chloride i hopeit's right..

3 0
2 years ago
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