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Svetradugi [14.3K]
3 years ago
14

5.Are pure solids included in equilibrium expressions? Explain your answer.

Chemistry
1 answer:
tatiyna3 years ago
8 0

Answer:

Pure solids or liquids are excluded from the equilibrium expression because their effective concentrations stay constant throughout the reaction. The concentration of a pure liquid or solid equals its density divided by its molar mass.

Explanation:

Hope this helps!!!

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If the net force on a hot-air balloon is directed straight upward, which way does the acceleration point?
Marizza181 [45]

Answer:

upward (F=ma if f is up a is up)

6 0
3 years ago
Question #1
TEA [102]

Answer:

D. one red straw and one green straw.

3 0
3 years ago
Take your time please.​
Andreyy89

Answer:

1.) Eyewash station --> D

2.) Absorbent material --> G

3.) Fire extinguisher --> F

4.) Safety Shower --> E

5.) Biohazard container --> J

6.) Broken glass container --> I

7.) Safety goggles --> C

8.) Lab apron --> H

9.) asbestos gloves --> A

10.) Latex gloves --> B

Explanation:

In an equipped laboratory, alot of safety equipments are made available and kept in area that it could be easily accessed in the laboratory. Safety or protective equipments are those materials that helps protect a laboratory personnel while at work on the lab.

These equipments include:

--> Eyewash station: This is an equipment used in the laboratory during emergency to rinse chemical from the eye. Therefore option D is correct.

--> Absorbent material: They are used to contain small spills in the laboratory. Therefore option G is correct.

--> Fire extinguisher: This equipment is used to put out small fires. Therefore F is correct.

--> Safety Shower: This is used to rinse away chemical from clothes and on skin during emergency. Therefore option E is correct.

--> Biohazard container: This container is used to safely dispose bacteria culture, blood and other living tissues. Therefore option J is correct.

--> Broken glass container: This is used to dispose cracked, chipped or broken bottle in the laboratory. Therefore option I is correct.

--> Safety goggles: This helps to protect the eye from chemical and broken glasses. Therefore option C is correct.

--> Lab apron: This is worn by the laboratory personnel to help protect the skin from chemical and biohazards. Therefore option H is correct.

--> Asbestos gloves: these are heat resistant gloves used to protect the hands from heat. Therefore option A is correct.

--> Latex gloves: these are equally worn by the laboratory personnel to protect the hands from chemicals and biohazards

6 0
3 years ago
Read 2 more answers
What is the ranking order of the degree of polarity? Of HF,HCI,HBr and HI
Savatey [412]

Answer:

The ranking order of the degree of polarity is HF>HCl>HBr>HI

Explanation:

The degree of polarity of a compound depends on the nature electronegative atom that it contains.

      Among Fluorine,chlorine,bromine and iodine the electronegativity of fluorine is highest among all the mentioned atoms.

     Due to high electronegativity HF is the most polar than HCl,HBr and HI and the HI have least polarity as its atomic structure is large and electronegativity is lower than fluorine,chlorine and bromine.

7 0
4 years ago
Is cutting paper with scissors a non physical change
AleksAgata [21]
No, cutting paper is a physical change, as you are changing how the paper appears.

hope this helps
6 0
4 years ago
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