Answer the following questions.
P1) Matching.
Complete the table with the data from the lab. First, calculate and enter the mole ratio in the chart, then enter the volumes of the precipitates.
Answers
The mole ratio can be seen below and the volume of each precipitate is 60 mL.
A mole ratio refers to a conversion factor that compares the quantities of two chemicals in moles in a chemical laboratory experiment.
Mole ratio For 1:
= 10 mL : 50 mL= 1 : 5 mLMole ratio For 2:
15 mL : 45 mL= 1 : 3 mLMole ratio For 3:
20 mL : 40 mL1 : 2 mLMole ratio For 4:
30 mL : 30 mL1 mL : 1 mLMole ratio For 5:
40 mL : 20 mL2 : 1 mLMole ratio For 6:
45 mL : 15 mL3 : 1 mLMole ratio For 7:
50 mL : 10 mL5 : 1 mLSince the parameters from the left side of the diagram are not shown, we will assume that the volumes for each precipitate are the addition of both volumes in each column.
By doing so, we have:
1.
(10 +50) mL = 60 mL2.
(15 + 45) mL = 60 mL3.
(20 + 40)mL = 60 mL4.
(30 + 30) mL = 60 mL5.
(40 + 20)mL = 60 mL6.
(45 + 15) mL = 60 mL7.
(50 + 10)mL = 60 mLLearn more about mole ratio here:
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Related Questions
dose any body know 2(-3+6)=
______
3
Answers
Answer: The answer is 6
1) Simplify -3+6 to 3.
2×3
And then Simplify.
6
Sorry if im wrong
1. Have scientists been able to invent a perpetual motion machine?
O Yes
O No
Answers
I think this way because of the law of first law of thermodynamics where it says that energy can't be created or destroyed. This means you can’t receive more energy then you put in. In conclusion a machine could only ever produce as much energy as it consumed.
HELP!!!!
Which of the following has the smallest electron affinity?
а К
b Ca
C Li
d Na
e Mg
Answers
Answer:
e. Mg.
Explanation:
Answer:
[tex]mg[/tex]
is the answer to your question
“Burning of fossil fuels causes pollution.” Suggest alternative methods by
which we can overcome this global issue in less than 250 words.
Answers
An alternative method by which we can overcome this global issue is by harnessing Solar energy.
Discussion:
Fossil fuels cause environmental pollution. This is because they are organic compounds and on combustion, they release air pollutants such as, Carbon monoxide.
As a panacea, the use of solar panels for harnessing Solar energy in a bid to replace energy from fossil fuels will prove to be am effective method by which we can overcome the global issue of pollution caused by burning of fossil fuels.
Solar energy is a clean source of energy as there's no release of harmful air pollutants.
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Alternative method by which we can overcome this global issue is by
harnessing energy with less form of pollution. These include:
Solar energyHydropowerNuclear energyFossil fuel burning releases greenhouse gases such as Carbon dioxide,
nitrous oxide etc which causes pollution to the atmosphere.
It is best to adopt alternative methods mentioned above to ensure pollution
is reduced to the barest minimum. This helps to prevent ozone depletion and
global warming. It also reduces risks of respiratory diseases due to the
inhalation of the gases.
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Determine the highest occupied energy level in the
following elements:
a. He
b. Be
c. Al
d. Ca
e. Sn
Answers
Mendeleev's arrangement of the periodic table was in order of increasing ____.
A. atomic number
B. atomic mass
C. neutron number
D. valence electron number
Answers
Answer:
B. atomic mass
Explanation:
He arranged the elements into rows in order of increasing mass so that elements with similar properties were in the same column.
which acid is part of the white coating on sour patch kids?
Answers
Tartaric acid is the white, powdery substance that coats tart candies such as Sour Patch Kids. COmbustion analysis of a 12.01g sample of tartaric aid, which contains carbon, hydrogen and oxygen, produces 14.08g CO2 and 4.32g
H2O.
i would know because i have see what there made of
100 PIONTSSSS PLZ HELP
Draw the correct structural formula for the following molecules
Answers
Answer:
Explanation:
how do u draw on here
HELP PLEASE ASAP ILL GIVE BRAINLEST
Answers
Answer:
D
Explanation:
braineist pls???????????
Answer:
C
Explanation:
gram is bigger than atom duh
Select the three hypotheses that explain why being born in the United States leads to a higher chance of developing allergies
- The weather patterns in the United States bring more allergens compared to other countries
- cultural practices may play a part because some cultural foods have different anti-allergenic properties
- other factors which might influence why there are more children with allergies in the United States include climate, obesity, and the typical western diet with high amounts of processed foods.
- children in the United States are taught to believe in allergens, but really allergens don’t really exist.
- The hygiene hypothesis claims that children in the United States are not exposed to enough germs in their infancy and childhood to develop their immune system‘s properly.
Answers
The three hypotheses that explain why being born in the United States
leads to a higher chance of developing allergies include the following:
The weather patterns in the United States bring more allergens compared to other countries.Other factors which might influence why there are more children with allergies in the United States include climate, obesity, and the typical western diet with high amounts of processed foods.The hygiene hypothesis claims that children in the United States are not exposed to enough germs in their infancy and childhood to develop their immune system‘s properly.Allergies are caused by a host of factors such as :
ClimateDietImmune systemThese factors is the reason why the chosen hypotheses are the most
appropriate.
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how much evaporated milk equals 1 cup of whole milk?
Answers
Answer:
1/2 cup evaporated milk plus 1/2 cup water.
Explanation:
PLEASE PEOPLE I NEED HELP PLEASE IF YOU SEE THIS HELP ME ! :,(
NO LINKS !!!! PLEASE :)
Answers
Answer: 5.5 7.5 102
Explanation: using the equation above you can get these %s
How many moles of AgCl can form from 6.5 moles of Ag and abundant HCl in the equation: 2Ag + 2HCl -> 2AgCl + H2
Answers
6.5 moles of AgCl can be formed from 6.5 moles of Ag.
STOICHIOMETRY:
According to this question, silver reacts with hydrochloric acid to form silver chloride and hydrogen gas as follows:
2Ag + 2HCl → 2AgCl + H2
Based on this balanced equation, 2 moles of silver (Ag) produces 2 moles of silver chloride (AgCl).
This means that 6.5 moles of Ag will produce (6.5 × 2)/2 = 6.5 moles of AgCl.
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How does distillation remove hardness from water
Answers
Answer:
Distillation can be used to soften water as the water evaporates as it is heated and the ions are left behind.
Hope that helps. x
Answer: Distillation can be used to separate and collect a liquid from a solution. Distillation can also be used to soften water as the water evaporates as it is heated and the ions are left behind. Hard water can be softened by adding sodium carbonate (washing soda) or by passing the water through an ion-exchange column.
Explanation:
Potassium is a silvery-white, solid metal. Chlorine is a greenish-yellow gas. When these two elements react chemically, they yield potassium chloride which is an odorless salt with a crystal structure. Potassium chloride is used in the production of fertilizer.
Required:
Which part of atomic structure is responsible for the reactivity of atoms?
Answers
The electrons present in the valence shell of an atom are responsible for the reactivity of atoms.
What is an atom?An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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#SPJ2
How did the believers show their fellowship with one another?
Answers
Answer:
I think you may have chosen the wrong subject for your question, besides where is the context to this?
1. One atom contains 29 protons and 34 neutrons. Another atom of the same element has a mass number of 65. How many protons and neutrons does this unknown atom have?
A. 28 protons, 37 neutrons
b. 29 protons, 36 neutrons
C. 29 protons, 35 neutrons
D. 31 protons, 34 neutrons
Answers
Answer:
b
Explanation:
because its the atom of the same element, the no of protons doesn't change but the mass number changes so we can find the mass number by:
(mass number = atomic no/no of protons + no of neutrons)
here;
mass number given = 65
and we know, no of protons = 29
let no of neutrons = x
hence,
65 = 29 + x
x= 65 – 29
x= 36
hence your answer is b
magnesium nitrate contains chemical bonds that are
Answers
Answer:
Magnesium Nitrate is an ionic compound formed by:
Magnesium;Mg+2 (the cation) and Nitrate NO−3 (the poly-atomic anion).
In order for these two ions to bond, the charges must be equal and opposite. Therefore, it will take:
two -1 nitrate ions to balance the one +2 magnesium ion.
Some acids like acetic acid and tartaric acid cannot be tasted
TRUE OR FALSE
Answers
The statement is a false.
An acid is a substance which when dissolved in water, produces hydroxonium ion, as the only positive ion.
Some properties of acid include:
They have sour tastes andStrong acids are corrosive.There are two types of acids which includes:
Strong acids: These are the acids that ionizes completely in solution.Weak acid: These are the acids that ionizes incompletely in solution.Examples of weak acid is acetic acid and tartaric acid.
They can be used as food substances like vinegar and naturally occurs on fruit like banana or grape.
Therefore, weak acids such as acetic acid and tartaric acid can be tasted.
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The given statement is False.
Some acids like acetic acid and tartaric acid can be tasted.
Organic acids, such as acetic, citric, malic, and fumaric acids in fruits and vegetables, and tartaric acid in wine, contribute significantly to the sour flavor of foods and beverages. Many inorganic acids taste sour in dilute solutions.
Tartaric acid is fairly water soluble and has a pronounced tart flavor. Tartaric acid is present naturally in grapes and bananas and has been shown to improve the flavor of grape and lime-flavored beverages. Tartaric acid may aid in the treatment of glucose intolerance and digestion.
Acetic acid is a colorless liquid having a sour flavor. Although it is most frequently associated with vinegar, this acid has a wide range of different applications in a variety of industries. Acetic acid is a colorless liquid that is composed of chemical compounds.
To know more about Acetic acid,
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what are the three molecules that are attached to the plasma membrane, and what are their roles/ functions?
Answers
Answer:
Ans:
*Carbohydrates
*Proteins
*Cholesterol
Explanation:
The plasma membrane is a structure that has several distinct roles in the cell
The plasma membrane is mainly composed of the phospholipid Bilayer, which is a layer of two sheets located in the internal and external parts. The Phospholipids are said to be Amphipathic because they have both properties of Hydrophobic and hydrophilic
*The Carbohydrate Molecules attach to the Plasma Membrane such as to the lipids and Proteins:
when They attach to the Proteins, they are known as glycoproteins, and they help in cell recognition, when they attach to the lipids, they are known as Glycolipids
*Protein Molecules play an important role in transport system such as Carrier Proteins
*Cholesterol Molecules help in balancing the Fluidity of the plasma membrane
hope this was of use
100 POINTS PLZZ HELPP
draw the correct structural formula for the following molecules
Answers
Answer:
I cant see the questions can u do a picture zoomed in, thanks :)
Explanation:
how does the value of g on the earth is related to the mass of the earth and its radius drive it
Answers
The relationship between acceleration due to gravity (g), mass of earth (M) and the radius of earth (R) is [tex]g = \frac{GM}{R^2} [/tex].
What is weight of an object?
The weight of an object is determined as the product of the object's mass and acceleration due to gravity.
F = mg
The gravitational force on objects in the universeThe gravitational force between two objects in the universe is directly proportional to the product of mass of the objects and inversely proportional to the square of the distance between the objects.
[tex]F = \frac{GmM}{R^2} [/tex]
[tex]mg = \frac{GmM}{R^2} \\\\ g = \frac{GM}{R^2} [/tex]
where;
M is the mass of the earth
R is the radius of the earth
Thus, the relationship between acceleration due to gravity (g), mass of earth (M) and the radius of earth (R) is [tex]g = \frac{GM}{R^2} [/tex].
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typhoons are more violent than hurricanes
Answers
Answer:
i think it is FALSE.
Explanation:
good luck
During the Cellular Respiration reaction glucose reacts with oxygen gas
to form water and Carbon Dioxide. How much carbon Dioxide would be formed from 58 grams of glucose?
Answers
try putting 66 grams CO2 for answer
PLEASE HELP I DON´T KNOW WHAT THE DIFFERENCE BETTWEEN THE TWO IS!
What is the difference between a product and a reactant.
Answers
Answer:
A reactant is a substance that is present at the start of a chemical reaction. A product is a substance that is present at the end of a chemical reaction.
Explanation:
Which term describes the small, somewhat circular pattern of wind?
A Easterlies
B Trade Winds
C polar winds
D convection cells
Answers
Answer:
its D, convection cells
Write the charges for each part of this equation.
Answers
Answer:
the Aluminium Al have +3 charges and idion have I) have - 2 charges
Silicone is a type of synthetic compound made of silicon, oxygen, and other elements. There are many different kinds of silicone. One kind is a liquid and is commonly used as a lubricant to reduce friction between moving parts. Unlike petroleum-based lubricants, silicone is nontoxic. However, silicone is more expensive than petroleum-based lubricants.
Which of the following would silicone lubricants most likely be used for?
Answers
Explanation:
Liquid-based lubricant
Answer:
study island : food service equipment
Explanation:
Can someone please explain the steps to the correct answers?
Answers
Explanation:
1. b is correct because 10^-2 is 1/100. multiplying that by 1.862 is 0.01862
2. 6 feet 10 inches = 82 inches. multiplying 82 by 2.54 we get 208.28. there are only two sig figs so it's 210 cm, not 0.21 cm.
3. 25.2 x 39370 = 992000, which is 9.92 x 10^5.
Which is the correct measure of density?
Cm^2/g
g/cm^3
cm^3/g
mass x volume
Answers
Answer:
g/cm^3
Explanation:
Density= m/v
gram is a measurement of mass
cm^3 is a measurement of volume
Hope this helps:) Have a good day!