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3 years ago

Calculate the percentage of all elements in Fel(OH)3

Chemistry

1 answer:

Vsevolod [243]3 years ago

7 0

Answer: 30.06% is your answer.

I hope this helps.

Stay safe and have a good day :D

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Near the shore ,winds tend to blow out toward the water at night.what drives this process

Alisiya [41]

Warm air from above the water rises and is replaced by the cool air from the shore

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2 years ago

Read 2 more answers

In a mixture of 3 gases what is the total pressure of the gases if Gas A exerts a pressure

kirill [66]

Answer:

760 mm of Hg

Explanation:

If the gases A , B and C are non reacting , then according to Dalton's Law of Partial Pressure the total pressure exerted is equal to sum of individual partial pressure of the gases .

If there are n , number of gases then ,

$P_{total}= P_1+P_2+P_3+\dots +P_n$

Here ,

Partial pressure of Gas A = 400mm of Hg
Partial pressure of Gas B = 220 mm of Hg
Partial pressure of Gas C = 140mm of Hg

Hence the total pressure exerted is ,

$P_{total}= P_{Gas\ A }+P_{Gas\ B }+P_{Gas\ C }$

Substitute ,

$P_{total}=( 400 + 220 + 140 )mm\ of \ Hg$

Add ,

$P_{total}= 760\ mm\ of \ Hg$

Hence the total pressure exerted by the gases is 760 mm of Hg.

I hope this helps.

4 0

2 years ago

1) Humans have how many sets of teeth?

Verizon [17]

1) Humans have how many sets of teeth?

C) 4

2) Adults have how may permanent teeth?

B) 32

3) What type of food products make teeth stronger?

Cheese and Yogurt

4) What is the visible part of the tooth?

C) crown

5) What part of the tooth is harder than bone?

D) dentin

6) What part of the tooth is soft and contains the nerves?
A) pulp

7) What refers to the alignment of the teeth?

Occlusion

8) The lower teeth protect what?

D) tongue

9) Malocclusion is the least common reason for referral to orthodontists.

False

10) Usually, malocclusion is hereditary.
True

11) Which type of malocclusion is commonly referred to as an overbite?

Class Two

12) Bacteria are living organisms than cause cavities.
True

13) What is the whitish film that grows on your teeth called?

Plaque

14) What is the best fighter of cavities?

Fluoride

Gingivitis is the inflammation of the
A) gums

16) Gingivitis is permanent.

False

17) Name 2 ways to fight gingivitis.

Proper Toothbrushing and Flossing
Professional Dental Cleanings

18) The cause of gum disease is

B) bacteria

19) Untreated, periodontitis will progress until your teeth loosen and fall out.
True

6 0

2 years ago

AnonymousXDX can you answer this question to

IgorC [24]

Answer:

Explanation:

3 0

2 years ago

Someone help me answer this please! I’ll mark you brainliest

kondor19780726 [428]

b. increase in surface area

<h3>Further explanation</h3>

Given

Speeding up a chemical reaction

Required

Factors used to speed up reactions

Solution

There are several factors that influence reaction kinetics :

1. Concentration

2. Surface area

3. Temperature

4. Catalyst

5. Pressure

6. Stirring

Temperature is related to the kinetic energy of the particles. Heat is absorbed causes the particles of matter to move faster so that the reaction can take place faster

The enlarged surface area of the reactants causes more particles to react with other particles.

50 g square block of sulfur can be broken into small pieces or powdered so that more particles come into contact with each other

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2 years ago