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4 years ago

Complete the statements by writing the number from the graph.

Chemistry

2 answers:

natima [27]4 years ago

6 0

Answer: The substance is in the gas phase only in region 5

The substance is in both the liquid and the solid phase in region 2

The substance is in only the liquid phase in region 3

The melting point is the temperature at region 2

The boiling point is the temperature at region 4

Explanation:

spin [16.1K]4 years ago

5 0

Answer :

1. The substance is in the gas phase only in region 5.

2. The substance is in both the liquid and the solid phase in region 2.

3. The substance is in only the liquid phase in region 3.

4. The melting point is the temperature at region 2.

5. The boiling point is the temperature at region 4.

Explanation :

Melting or fusion : It is a type of process in which the phase changes from solid state to liquid state at constant temperature.

Freezing : It is a type of process in which the phase changes from liquid state to solid state at constant temperature.

Evaporation : It is a type of process in which the phase changes from liquid state to gaseous state at constant temperature.

Condensation : It is a type of process in which the phase changes from gaseous state to liquid state at constant temperature.

Sublimation : It is a type of process in which the phase changes from solid state to gaseous state without passing through the liquid state at constant temperature.

Deposition : It is a type of process in which the phase changes from gaseous state to solid state without passing through the liquid state at constant temperature.

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The map shows watersheds with a high potential for soil, nitrogen, and pesticide runoff. If you were in charge of handling the p

Yuri [45]

Answer:

Here are some possible answers:

Why are watersheds in the Midwest more prone to pollution in than other areas in the country?

What are the current flood and pollution control measures in place in high-risk regions?

What are the flaws with the systems used to control pollution in high-risk regions?

What can the officials and scientists in one region learn from those in another region?

What would the effects on residents be if we made changes to current flood and pollution control measures?

Explanation:

When manure or commercial fertilizers enter surface water, the nutrients they release stimulate microorganism growth. The growth and reproduction of microorganisms reduce the dissolved oxygen content of the water body. Without sufficient dissolved oxygen in surface water, fish and other aquatic species suffocate.

7 0

3 years ago

How many joules of heat energy are absorbed when 50.0 grams of water are heated from 50.0°C to 60.0°C?

Ivahew [28]

Answer:

 $2090 \ j$ needed to heat the amount of water giving. 

Explanation:

To solve this question we first need to know the specific heat of water which is given by 4.18 joules Per gram for increasing 1° of temperature. Now since one gram of water name one joules per gram so 2 grams will need twice of 4.18 that is 8.36 similarly 50 grams will need $50 \times 4.18 = 209$

Now we need to calculate the heat for 10° of change because temperature rises from 50° centigrade to 60° centigrade and difference in degrees

so heat needed is= $209 \times 10 = 2090 \ j$ 

6 0

3 years ago

The non-contact forces portfolio please help I'm just confused about what I'm supposed to do.

MatroZZZ [7]

The non-contact forces portfolio includes Gravitational force, Magnetic force and Electrostatic force.

<h3>What is non contact force?</h3>

Non contact forces are those forces which are applied on any object without any physical interference or contact.

Some non-contact forces are:

Gravitational force: It acts between two objects and depends on the masses of the object and distance between that objects.
Magnetic force: It acts due to the motion of the charged particles.
Electrostatic force: It is a type of induced force which is generated due to rubbing of two objects but when it is generated it remains even after removing the contact of previous objects.

Hence Gravitational force, Magnetic force and Electrostatic force are the non-contact forces.

To know more about non contact forces, visit the below link:

brainly.com/question/18451249

#SPJ1

8 0

2 years ago

2. force → the rate at which an object changes position; distance divided by time

yaroslaw [1]

Answer:

2. True

3. True

4. False

Explanation:

4 0

3 years ago

What is the maximum amount of silver (in grams that can be plated out of 4.7 l of an agno3 solution containing 3.2 % ag by mass?

Alex

The maximum amount of silver will be all of that contained in the solution.
Silver in solution:
Solution volume = 4,700 ml
Solution mass = 1.01 x 4,700
Solution mass = 5170 g

Amount of silver = 5,170 x 0.032
Amount of silver = 165.44 grams

5 0

3 years ago