Answer: Aluminum Carbonate
Explanation:
Answer:
Aluminum carbonate.
Explanation:
It is an aluminum salt form of carbonic acid.
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Answer:
A. 40 kPa
Explanation:
P(total) = P(O2) + P(N2) + P(CO2)
300kPa = 160 kPa + 100kPa + P(CO2)
P(CO2) = 300-160-100= 40 kPa
find reducing and oxidizing agents
Answer:
SO4^2- is the oxidizing agent.
l^- is the reducing agent.
Explanation:
SO4^2- + I^- + H^+ —> H2S + I2 + H2O
To know which is the oxiding agent or the reducing agent, let us calculate the change in oxidation number of each element. This is illustrated below:
Note: the oxidation number of Hydrogen (H) is always +1 except in hydride where it is -1.
The oxidation number of Oxygen (O) is always -2 except in peroxide where it -1
For S:
SO4 = -2
S + 4O = -2
O = - 2
S =.?
S + (4 x -2) = -2
S - 8 = -2
Collect like terms
S = -2 + 8
S = +6
H2S = 0
2H + S = 0
H = +1
S =..?
2(1) + S = 0
2 + S = 0
Collect like terms
S = 0 - 2
S = -2
The oxidation number of S changes from +6 to -2
For I:
I = - 1
I = 0
The oxidation of I changes from -1 to 0.
Since the oxidation number of S changes from +6 to -2 i.e reduce, therefore SO4^2- is the oxidizing agent.
The oxidation number of I changes from -1 to 0 ie increased. Therefore, l^- is the reducing agent.
A solution has a pH of 8.4. what is the H+ concentration of the solution?
A solution has a pH of 11. What is the H+ concentration of the solution? Is the solution an acid or base?
Your father goes to the store to buy cleaner to remove such deposits from your bathtub. He has a choice between a product containing lemon juice (H+ =10^-2.5M) and one containing vinegar (H+ = 10^ -3.3M) which product would you recommend he purchase and why?
[H+]=3.98x10^-9
[H+]=10^-pH=10^-8.4
[H+]=10^-11, base
[H+]=10^-pH=10^-11
A solution with a pH of more than 7 is basic.
Lemon juice because it is more acidic
pH of lemon juice: 2.5
pH of vinegar: 3.3
Since the pH of lemon juice is lower, it is more acidic and will be more effective at removing the basic deposits.
Please Help In need of chemistry help
The reaction CH4 + Br2 → CH3Br + HBr is an example of
1.Addition
2.Polymerization
3.Substitution
4.Hydrogenation
Why does the ionization energy change when moving down a group of elements?
The number of valence electrons increases.
The nuclear positive charge increases.
The energy levels are increasing.
The attractive force decreases as the atom gets larger.
Answer:
D) The attractive force decreases as the atom gets larger.
Explanation:
i did the lesson and tried all 3, all 3 times, this was the last one and only choice left so it has to be.
Answer:
The attractive force decreases as the atom gets larger.
Explanation:
determine the mass of a copper (ii) trioxonitrate(v) that will be formed when 15g og copper is added to excess dilute trioxonitrate(v) acid
Explanation:
Copper(II) carbonate basic, CuCO3•Cu(OH)2(s), is the dull green colour that forms on copper roofs. Copper oxidises in the air to form an approximately equimolar mixture of CuCO3 and Cu(OH)2.The percentage of CuCO3 in the
H2(g) + I2(g) ↔2HI(g) + heat. If more I2 is added, in what direction will the equilibrium shift? Group of answer choices
Answer:
Towards the products, or to the right
Explanation:
There are no provided answer choices, but the answer should be to the right.
By Le Chatelier's principle, which basically can be summarized as "if you mess with chemistry, chemistry messes back", if more reactants are added, the equilibrium will shift to the right towards the products in order to make more products and counteract the increase in I₂.
what a neat and well labelled diagram of nitrogen cycle in nature
Answer:
In the picture.
I hope it helps
Explanation:
Nitrogen cycle is a complex process (or sequence of reaction) by which nitrogen is removed and added to the soil.
Which of the following reactions shows that the formation of CO2 releases
393.5 kJ/mol?
A. C(s) + O2(g) → CO2(g) + 393.5 kJ
O B. C(s) + 20(g) + 393.5 kJ → CO2(9)
O C. C(s) + O(g) + CO2(g) + 393.5 kJ
D. C(s) + O2(g) + 393.5 kJ → CO2(g)
Answer:
A. C(s) + O2(g) → CO2(g) + 393.5 kJ
Explanation:
The formation of carbon IV oxide (CO2) is an exothermic process. n exothermic process is a chemical process in which heat is evolved. Speaking in lay man's terminology, heat is one of the 'products' of the reaction. This implies that heat is evolved by the process.
The formation of CO2 is always a combustion reaction where heat is evolved or released by the reaction system. Hence the reaction could be shown as;
C(s) + O2(g) → CO2(g) + 393.5 kJ
This implies that 393.5 kJ of energy is released in the reaction in the form of heat. Hence the answer given in the answer box.
Answer: C(s) + O2(g) → CO2(g) + 393.5 kJ
A catalyst can only be used once.
True
False
Answer:
False
Explanation:
Catalysts are reusable because they keep the chemical reactions moving without being consumed.
Which of the following statements is true?
A. Every organism is made of different elements.
B. All living things are made of the same elements.
C. Every species is made of different elements.
D. All matter is made of the same 10 elements.
Answer:
Every species is made of different elements.
Explanation:
Living organisms are classified by their species. Species refer to a group of closely related individual organisms which are callable of interbreeding with each other and exchanging genetic material.
Member of a species have similar genetic make up and often look alike, it is the lowest taxonomic rank of closely related organisms.
Members of of different species are often composed of different elements. Since individual organisms are members of a given species, we can say that every species of organisms are made up of different elements.
In the movie bee movie how does the bee berry communicate
Answer:
they stick together as a group and that they berly fought or argue
Answer:first get a jar
Explanation:
Patrick that’s a jokers side special
How are ancient CO2 levels measured?
Answer:
Ancient CO₂ levels can be measured from
1) Air bubbles trapped in deep ancient ice cores (up to 800,000 years ago) or
2) Tree rings (up to 10,000 years ago)
Explanation:
The percentages of CO₂ concentration in the atmosphere from previous or ancient times are found by analyzing the CO₂ content in trapped air located in the deep ancient ice cores present in Antarctica and Greenland such as the EPICA Dome C cores
As the ice is drilled though, the air released from trapped bubbles are captured for analysis and the time frame for the captured bubbles can date back up to 800,000 years
Ancient CO₂ levels can also be measured from tree rings which provide ancient CO₂ levels up to 10,000 years
If the pH of a solution is 6.2, what would the pOH be?
O A. 7.8
B. 8.9
C. 12.4
D. 5.8
SUBMIT
Answer:
7.8
Explanation:
pH + pOH = 14
pOH = 14 - 6.2
= 7.8
The disinfectant hydrogen peroxide (H2O2)
decomposes to form water and oxygen gas.
How much O2 will result from the decomposition of 2.22 mol of hydrogen peroxide?
Answer:
1.1 mol of O2
Explanation:
First we need the balance chemical equation which is
2 H2O2 -------> 2 H2O + O2
This is important because in stoichiometry you can go from units of one thing to other by using mole ratios, here the mole ratio is 2 mol of H2O2 for one mole of O2.
[tex]2.2 mol H2O2 \frac{1mol O2}{2 mol H2O2}[/tex] = 1.1 mol of O2
formation of magnesium chloride
-Pure magnesium is commonly made by separating it from seawater. This process is known as electrolysis. The liquid magnesium formed is cooled into convenient blocks of metal known as ingots. The chlorine gas is recycled to form hydrochloric acid for the production of more magnesium chloride.
PLEASE HELP!!!
Design criteria are the desired features of a design. Identify at least two criteria for the design of the ammonia-making process. Explain why these criteria are important.
Answer:
Two design criteria for the design of the ammonia making process are;
1) Sustainable hydrogen production by renewable energy
2) Sustainable use of the ammonia-water thermal absorption cycle to retrieve the ammonia present in the waster water
Explanation:
Ammonia is produced from natural gas in the following process;
H₂ + RSH → RH + H₂S
H₂S + ZnO → ZnS + H₂O (Waste water)
CH₄ + H₂O → CO + 3H₂
CO + H₂O → CO₂ + H₂
Ammonia is then produced by reacting the produced hydrogen with nitrogen in the presence of a catalyst in a process known as the Haber-Bosch process as follows;
3H₂ + N₂ → 2NH₃
The
The design criteria for the design of the ammonia making process therefore as follows;
1) Sustainable use of renewable energy to produce hydrogen gas from the electrolysis of water
2) Use of the ammonia-water thermal absorption cycle to retrieve the ammonia present in the waster water.
The branch of science which deals with chemicals and their bond is called chemistry.
The two ways by which we can design ammonia making process is as follows:-
Two design criteria for the design of the ammonia making process are:-
Sustainable hydrogen production by renewable energy .The conversion of urea for the production of ammonia.
The usage of ammonia is important in these ways:-
They act as a fertilizer which helps to boost the growth of plants.They act as a poison to humans and many animals, so we have to extract it and handle it with care.Ammonia is also used as an inflammable gas.Hence, these are the design for the ammonia-making process.
For more information, refer to the link:-
https://brainly.com/question/19524691
What is one way to make stored water safe?
Even though you asked for ONE WAY, I found some other good ways.
1. Thoroughly wash plastic soda bottles or milk jugs with warm, soapy water.
2. Store sealed containers in a dark, dry, and cool place.
3. If after six months you have not used the stored water, empty it from the containers and repeat steps 1 through 3 above.
Four landing sites are proposed for a lander. Data about the
sites are listed in the table.
At which landing site would the lander have the greatest
amount of gravitational potential energy?
Landing Site
w
W
х
Y
Z
Height above
Surface (m)
32
16
35
Acceleration Due to
Gravity (m/s)
1.6
3.7
1.6
3.7
ОХ
OY
12
N
Answer:
The site at which the lander would have the greatest amount of gravitational potential energy is X
Explanation:
The formula for gravitational potential is given as follows;
[tex]PE_G = m \times g \times \Delta H[/tex]
Where:
g = Acceleration due to gravity
m = Mass of the lander
ΔH = Height above surface
Landing site --- Height above surface --- Acceleration due to gravity
W 32 1.6
x 16 3.7
Y 35 1.6
Z 12 3.7
Therefore, we have;
For site W
[tex]PE_G = m \times 1.6 \times 32 = 51.2 \cdot m[/tex]
For site X
[tex]PE_G = m \times 3.7 \times 16= 59.2 \cdot m[/tex]
For site Y
[tex]PE_G = m \times 1.6 \times 35 = 56 \cdot m[/tex]
For site Z
[tex]PE_G = m \times 3.7 \times 12 = 44.4 \cdot m[/tex]
Hence the site at which the lander would have the greatest amount of gravitational potential energy is X with [tex]PE_G[/tex] = 59.2·m.
Gravitational energy is the power stored in an object due to the intensity of gravity or because the article is located vertically.
The correct answer is:
The site at which the lander would have the greatest amount of gravitational potential energy is X.
The correct explanation for site X is:
The gravitational energy can be calculated as the product of mass, gravitational field and height.
[tex]{\text{PE}_{\text G}&= \text{m}\; \times\text g\times \Delta\text H[/tex]
Where,
g = acceleration due to gravitym = mass
h = height
Given,
Landing site Height above surface Gravity
W 32 1.6
X 16 3.7
Y 35 1.6
Z 12 3.7
We can calculate Gravitational energy for all the sites as follows:
Site W:[tex]{\text{PE}_{\text G}&= \text{m}\; \times\ 1.6\times 32 = 51.2 \text \; \times \text {m}[/tex]
Site X:[tex]{\text{PE}_{\text G}&= \text{m}\; \times\ 3.7\times 16 = 59.2 \text \; \times \text {m}[/tex]
Site Y:[tex]{\text{PE}_{\text G}&= \text{m}\; \times\ 1.6\times 35 = 56 \text \; \times \text {m}[/tex]
Site Z:[tex]{\text{PE}_{\text G}&= \text{m}\; \times\ 3.7 \times 12= 44.4 \text \; \times \text {m}[/tex]
Therefore, the greatest amount of gravitational energy 59.2m is present on-site X.
To learn more about gravitational potential energy follow the given link:
https://brainly.com/question/19768887
Which of the following elements have the same number of valence electrons?
I. Nitrogen (N)
II. Oxygen (O)
III. Fluorine (F)
IV. Sulfur (S)
V. Selenium (Se)
Does the number of ions in solution increase, decrease, or remain constant?
It decreases at first, then increases.
It continuously increases.
It continuously decreases.
It increases at first, then decreases.
Answer:
It continuously decreases.
which of the following causes tornadoes?
Answer:
Tornadoes form when warm, humid air collides with cold, dry air.
Explanation:
The denser cold air is pushed over the warm air, usually producing thunderstorms. The warm air rises through the colder air, causing an updraft. The updraft will begin to rotate if winds vary sharply in speed or direction.
// have a great day //
Answer:
your question says of the following but their isn't any of the following ):
Explanation:
But other than than that person right up above
What is a criterion for all products made using the process of technological design? The product must be cheaper than similar products.
The product must be available to any user who wants it.
The product must solve the problem for which it was designed.
The product must be capable of solving a variety of problems.
Answer:
C. The product must solve the problem for which it was designed.
Explanation:
Technological design is the study, development and application of technological process with the intent of designing a product to solve required problem.The process could be based on the use of a computer.
Generally, technological process and development always tend to design a problem solver product. Through this process, more new technologies are produced.
Therefore in technological process, the product must solve the problem for which it was designed.
Answer:
C) The product must solve the problem for which it was designed.
What is the molar mass of Al2(SO4)3?
Answer:
342.14g/mol.
Explanation:
The molar mass of Al2 (SO4)3 is 342.15g/mole.
Reasons that one aluminum atom=26.98. Therefore two aluminum atoms:=2(26.98 g/mole) =53.96 g/mole.
Mass of SO4=96.06g/mol.
Therefore molar mass of Al2(SO4)3= 53.96+(96.06)×3=342.14g/mol
Answer:
342.17 g/mol
Explanation:
Al= 26.98
S= 32.07
O= 16.00
To calculate that you would have
2(26.98) since there are two Als
and then you have to distribute the 3 to the S and O so...
3S and 12O
which is
3(32.07) + 12(16.00)
which means you add
2(26.98) + 3(32.07) + 12(16.00)
=53.96 + 96.21 + 192
=342.17
there you Go! the final answer is 342.17 g/mol.
3. Sugar solution(sugar + water) is a homogeneous mixture and sugar can be separated from water through evaporation .Comment.
Plz, answer
Answer:
water is the answer
Explanation:
The sugar and water mix to make sweet water but the sun extracts the sugar from the water leaving only normal water
Answer:
water can be evaporated
Explanation:
the water will be evaporated leaving only the sugar residue behind.
the list which contains only metals is
Answer:
Hydrogen in its metallic state (usually considered a nonmetal)
Lithium.
Sodium.
Potassium.
Rubidium.
Cesium.
Francium.
Explanation:
Answer:
The list of elements that contains only metals is tin, copper and cesium.
Carbon and iodine aren't metals.
Helium isn't metal.
Neither iodine, carbon, nor argon are metals.
(Hope this helps) Sky
What is the decay mode of radium-226?
Answer:
Radium-226 is a radioactive decay product in the uranium-238 decay series and is the precursor of radon-222. Radium-228 is a radioactive decay product in the thorium-232 decay series. Both isotopes give rise to many additional short-lived radionuclides, resulting in a wide spectrum of alpha, beta and gamma radiations.
Please look at the photo and identify what’s in it!
Answer:
Explanation:
A battery
Answer:
Ac motor is in this images
A.
B.
C.
D.
what could be the correct answer? Help me please
Answer:
A
Explanation:
Answer:
a
Explanation:
what can a criminal do to make the bullet not match the gun hurry plz
