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3 years ago

Which statement best describes the process that arrow 1 represents

Chemistry

2 answers:

borishaifa [10]3 years ago

8 0

<span>Molecules are speeding up during boiling. Is the correct answer this question.</span>

saw5 [17]3 years ago

6 0

Answer : The correct option is, Molecules are speeding up as boiling occurs.

Explanation :

There are three states of matter which are solid, liquid and gas.

In the given diagram,

Arrow 1 shows the boiling process in which the phase changes from the liquid state to gaseous state at constant temperature.

Arrow 2 shows the melting process in which the phase changes from the solid state to liquid state at constant temperature.

Arrow 3 shows the sublimation process in which the phase changes from the solid state to gaseous state at constant temperature.

Arrow 4 shows the condensation process in which the phase changes from the gaseous state to liquid state at constant temperature.

Arrow 5 shows the freezing process in which the phase changes from the liquid state to solid state at constant temperature.

Arrow 6 shows the deposition process in which the phase changes from the gaseous state to solid state at constant temperature.

Hence, the arrow 1 represents the molecules are speeding up as boiling occurs.

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Sveta_85 [38]

Answer: 1. P1V1 = P2V2

2. P stands for pressure

3. Units for Pressure are atm and Pa

4. V stands for volume

5. Units for volume is in mL

Explanation: Boyle's Law is a gas law that states the relationship between pressure and volume of a gas.

8 0

3 years ago

Read 2 more answers

Carbonic acid dissolves limestone and other rocks. This is an example of _____. chemical errosion

Jet001 [13]

Carbonic acid dissolves limestone and other rocks. This is an example of chemical erosion. An example is in the caves. Caves are formed where rainwater as it falls through the atmosphere absorbs carbon dioxide. The carbon dioxide makes the rain acidic to react it with the limestone bedrock. The rainwater is absorbed by the soil into the ground. Then as it enters through the soil, the rainwater will absorb more carbon dioxide that is produced by the decomposers. The carbon dioxide with water reacts to form carbonic acid. The carbonic acid will react to limestone and dissolves it slowly. As the space become larger, water can enter into it.

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3 years ago

Find the density of Liquid A: Liquid A: Mass-138g Volume – 100 mL.

nlexa [21]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass of liquid = 138 g

volume = 100 mL

The density of the liquid is

$density = \frac{138}{100} = \frac{69}{5 0}$

We have the final answer as

Hope this helps you

7 0

3 years ago

if a lead can be extrated with 92.5% efficiency,what is the mass of ore required to make a lead sphere with 750%cm radius

Lady_Fox [76]

The mass of ore required is 21 700 t.

r = 750 cm

V = $\frac{4}{3} \pi r^{3}$ = $\frac{4}{3} \pi (750 cm)^{3}$ = 1.767 × 10⁹ cm³

The density of lead is 11.34 g/cm³.

So mass of lead sphere = 1.767 × 10⁹ cm³ × $\frac{11.34 g}{1 cm^{3} }$ = 2.004 ×10¹⁰ g

2.004 ×10¹⁰ g × $\frac{1 kg}{1000 g}$ = 2.004 × 10⁷ kg

2.004 × 10⁷ kg × $\frac{1 t}{1000 kg}$ = 2.004 × 10⁴ t

92.5% efficiency means 92.5 t Pb per 100 t of ore.

Mass of ore = 2.004 × 10⁴ t Pb × $\frac{100 tore}{92.5 t Pb}$ = 2.17 × 10⁴ t ore = 21 700 t ore

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