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Lelechka [254]
3 years ago
14

The phase of matter can be changed by:

Chemistry
2 answers:
777dan777 [17]3 years ago
7 0
The phases of matter are changed by temperature and pressure
kari74 [83]3 years ago
3 0

Answer : The phase of matter can be changed by pressure and temperature.

Explanation :

As we know that there are three states of matter which are solid, liquid and gaseous state.

Solid state : In this state, the molecules are arranged in regular and repeating pattern and are closely packed that means they are fixed and vibrate in place but they can not move from one place to another.

Liquid state : In this state, the molecules are present in random and irregular pattern and are closely packed but they can move from one place to another.

Gaseous state : In this state, the molecules are present in irregular pattern and are not closely packed and they can move freely from one place to another and spread out.

From this we conclude that, the arrangements of all the phase of matter can be changed by applying the pressure and temperature. That means,

By applying the pressure and temperature, the solid phase can be changed into liquid or gaseous state or liquid into solid or gaseous or gas into liquid or solid.

Hence, the phase of matter can be changed by pressure and temperature.

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The fluid in a barometer (shown above) is mercury, Hg. Why point
PIT_PIT [208]

Answer:

Mercury responds to temperatures differently than water. When mercury is cold, the molecules bunch together, making it seem to be less liquid, and the opposite happens during heat.

Hope this helps!

5 0
3 years ago
4.How element gold is different from oxygen?
V125BC [204]

Answer:

Gold is a metal, more specifically a transition metal, whereas Oxygen is a nonmetal, more specifically a reactive nonmetal. Using this information, you can compare and contrast metals, nonmetals, and metalloids.

Metals are:

Shiny

High melting point

Mostly silver or gray in color

Mostly solids at room temperature – Mercury (Hg) is a liquid at room temperature

Malleable – able to be hammered into a thin sheet

Ductile – able to be drawn/pulled into a wire

Good conductors of heat and electricity

Nonmetals are:

Dull

Low melting point

Brittle – break easily

Not malleable

Not ductile

Poor conductors of heat and electricity

Metalloids are:

Found on the “zig-zag” line on the Periodic Table of Elements

Have properties of both metals and nonmetals

Can be shiny or dull

Semiconductors – able to conduct electricity under certain conditions

Explanation:

Reccomend this site for questions llike these: https://ptable.com/#Properties

7 0
3 years ago
How many moles are in 2.00g of H2O​
gavmur [86]

n = m/M = 2/18 = 1/9 ~0,1 mol

4 0
2 years ago
Read 2 more answers
which of the following describes something an engineer would probably do first when developing new technology meant to reduce oc
JulijaS [17]

Answer:

Option B. is the right answer.

Explanation:

Before developing a new technology, an engineer has to evaluate the advantages and disadvantages of the chemical used in order to clean water bodies. If the chemical has more disadvantages as compared to advantages, so its usage will be avoided while if the chemical does not harm the marine organisms of the ocean so it can be used for the purpose of cleaning. So we can say that first the engineer has to study the chemicals.

3 0
3 years ago
Consider the ions of potassium (K) and sulfur (S), Write chemical formulas for all possible ionic compounds involving these ions
attashe74 [19]

The compounds that could exists between the ions K^+ and S^2- are K2S and K2S2.

<h3>What is an ionic compound?</h3>

An ionic compound is a commpound that is composed of ions. Let us note that ionic compounds are always such that the sum of the charges on the ions is zero.

Hence, the compounds that could exists between the ions K^+ and S^2- are K2S and K2S2.

Learn more about ionic compounds:brainly.com/question/9167977

#SPJ1

4 0
2 years ago
Read 2 more answers
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