Answer:
1.46mol of Al2(SO4)3 weights 499.5 grams
Explanation:
First we will find the gram formula mass of Al2(SO4)3.
Al * 2 = 26.98 g/mol * 2 = 53.96 g
SO4 * 3 = 96.06 g/mol * 3 = 288.18
53.96 + 288.18 = 342.14 g
That is the mass of 1 mol of AL2(SO4)3.
Now we will multiply 342.14g by 1.46.
342.14 * 1.46 = 499.5244 g
Or ... 499.5 g
Why alcohol is weaker acid than water
Answer:
ACIDS ARE WEAKER THAN WATER
Explanation:In general, alcohols are weaker acids than water because the OH group in alcohols is less polar than the OH group in the water. The electron releasing nature of the R group in alcohols decreases the polarity of the OH bond, which in turn decreases the acid strength of alcohols.
For the parts in a system to work correctly, the parts must be arranged or built upon in a particular order. What is the correct order of the parts of a human body system from simplest to most complex?
organ
cell
organ system
tissue
ummm... this is middle school science btw
Answer:
cell
tissue
organ
organ system
Explanation I need to show work pls help me
Answer
D. Acid rain reacting with limestone bedrock.
Explanation:
- Brief Description:
A chemical reaction occurs when acidic rainfall falls on limestone or chalk. During the process, new, soluble compounds are produced. These disintegrate in the sea and are washed away, weathering the rock. Some forms of rock are resistant to chemical weathering. When rain falls from the sky onto a limestone (CaCO3) statue, a reaction between sulphuric acid and calcium carbonate happens. Calcium sulfate is formed as a result of this process (CaSO4). Because calcium sulfate is soluble in water, the statue will ultimately disintegrate. Limestone is chemically worn through the carbonation process. Rainwater collects carbon dioxide as it travels through the atmosphere, forming a weak carbonic acid. Water and carbon dioxide react to generate a mild carbonic acid. The fractures in the limestone are acted upon by this mild carbonic acid. Many weak acids, such as carbonic acid, are found in water. When carbon dioxide gas from the atmosphere combines with rainfall, a weak but copious acid is created. Other forms of acid rain are produced by sulfur dioxide and nitrogen gases, which function as chemical weathering agents.- Chemical WeatheringChemical weathering is generally the most active and effective weathering process. Water within soil or stone dissolves minerals of soil, softens minerals that absorpb the water, and dissolves carbondioxide.Chemical weathering is the breakdown of rock by chemical processes. Water, air, and chemicals released by organisms cause chemical weathering of rocks when they dissolve the minerals in a rock.- Carbon Dioxide-Bicarbonate-Carbonate Equilibrium
The carbon dioxide/bicarbonate/carbonate buffer is an essential buffer in surface waters. When water is in equilibrium with both CO2 from the atmosphere and carbonate-containing rock, its pH is buffered to 8.3, which is close to the pKa of the weak acid bicarbonate HCO3- (pKa = 8.4).- Acid Rain The production of nitric and sulfuric acids in our atmosphere causes acid rain. These chemicals are strong acids that are very soluble in water and dissolve in cloud water droplets.The majority of nitrogen and sulfur oxides are caused by human activity. Electric utilities (60 percent), industrial combustion (17 percent), and industrial processes are the principal sources of sulfur dioxide emissions (8 percent ). Transportation, with internal combustion engines, accounted for more than half of all NOx emissions, with additional emissions from electric utilities (26 percent) and industrial combustion accounting for the remainder (14 percent ). Agricultural operations, particularly manure management, are the biggest source of ammonia emissions, but industry and transportation also emit some ammonia. Acid rain leads to the acidity of lakes and streams, as well as the degradation of trees at high elevations and vulnerable forest soils.- Effect of LimestoneCalcium carbonate, often known as [Ca][CO3], is a common mineral. One well-known form of calcium carbonate is limestone. Acids in acid rain increase calcium carbonate breakdown by interacting with the carbonate anion.This results in a bicarbonate solution. Because surface waters are in balance with atmospheric carbon dioxide, the concentration of carbonic acid, H2CO3, in the water remains constant.Because the minerals react with the excess acid, the presence of limestone and other calcium carbonate rock in lakes and streams helps to maintain a steady pH. However, acid rain can finally overwhelm the surface water's buffering ability.02
Molten Nacl conducts electricity due to the presence of
a) free eletrons b) free ions
c) free molecules d) atoms
sodium and chloride.
Answer:
b) free ions
Explanation:
when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic compounds do conduct electricity.
Molten NaCl or sodium chloride conducts electricity due to the presence of free ions (B).
Your friend states that she avoids acidic foods like tomatoes and orange juice because they give her an acid stomach. how would you respond
I will respond by telling her to continue with it in order to prevent the risk of GERD.
What is GERD?This is referred to as Gastroesophageal reflux disease and occurs when stomach acid or bile flows into the food pipe and irritates the lining.
Avoiding acidic foods will reduce the risk of him getting this type of disease which is why he should be encouraged.
Read more about GERD here https://brainly.com/question/1460107
Explain why organisms need to carry out the process of cellular respiration
how many molecules are in 25g of NH3
Answer:
a viewpoint is a person s way of thinking in general or particular things
Which compound, in the liquid phase, conducts electricity best?
Answer:
The answer is salt
Explanation:
I got it right on the quiz
What does the element tile on the
periodic table tell use about the element.
List 4 things
How much heat do you need to raise the temperature of 150 g of gasoline from −30 °C to −15 °C ?
A.) 4.68 kJ
B.) 5.00 kJ
C.) 6.66 kJ
D.) 9.40 kJ
Answer:
krusty crab pizza
the answer is c
Explanation:
two physical properties of oxygen gas
Answer:
oxygen is colorless, odorless, tasteless and soluble in water
Explanation:
Hope this helps
3. There are seven periods in the periodic table. Why are the elements arranged into these seven periods?
Answer:
Period 6 and 7
tbh i dont know the answer but the explanation
Explanation:
Period 6 and 7 have 32 elements because the two bottom rows that are separated from the rest of the table belong to those periods. They are pulled put in order to make the table itself fit more easily onto a single page
i hope that helps :)
A sample of gas has an initial volume of 20 L and an initial pressure of 2.5 atm. If the pressure changes to 3.1 atm, what is the new volume, assuming that the temperature remains constant? Step by Step please!
The new volume is mathematically given as
V2= 16.12 L
What is the new volume?
Question Parameters:
A sample of gas has an initial volume of 20 L
and an initial pressure of 2.5 atm.
If the pressure changes to 3.1 atm
Generally, the equation for Pressure is mathematically given as
P1V1 = P2 V2
2.5 * 20 = 3.1 * V2
V2 = 50/3.1
V2= 16.12 L
For more information on volume
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Many of earth resources are finite choose two of the following and describe how human both conserve and deplete this natural source food water and energy
Answer:
Gas!
Explanation:
It can be conserved by keeping it underground, even though it's dangerous if you keep it underground too far down it can explode and cause the Earth to have an huge expplosiion or Earthquake to where the earth can shift it's tectonic plates and cause new areas to be moved, or gone. To deplete this gas, they use it in cars, stoves, etc. and they use it up to where there can be no more gas left. Even though there is still natural gas under the Earth''s surface it can still be found and depleted in different type of unique ways people discover.
PS, Don't talk to my girl all harsh, and give her brainliest.
This might be the answer you were looking for informatically.
Gizmo warm up in the phases of water gizmo you can heat up or cool down a beaker of water. Press heat to heat up the water. Wait until the Temperature stops rising and obsevere. What happened
Answer:
This question is a little confusing but I believe its describing the actions of what Gizmo is doing with the water??
Explanation:
Why is the right side
of the periodic table
negative (gaining
electrons) and the
left side positive
(loosing electrons)?
Answer:
The elements on the left-side of the periodic table are relatively electron deficient. So due to their comparatively low effective nuclear charges (the net positive charge of the protons minus the shielding core electrons below the valence level), their electrostatic hold on these electrons are weak.
Elements further right on the period table though, have higher effective nuclear charges and stabilize electrons more effectively. Which leads to localized covalent bonding and the formation of molecules.
The right side contains non metals while the left side contains metals.
Metals lose electrons (negative electrons). They now have more protons, therefore making the ion positive.
Non metals gain electrons (positive electrons). So the ion has more electrons than protons which makes the ion negative.
Learning Task 1 Match column A with column B. Column A Column B 1. Phase Change -2. Freezing 3. Condensation 4. Melting 5. Evaporation a. temperature wherein a liquid solidifies b. change from one state to another without a change in chemical composition c. the temperature at which solid turns into a liquid d. the temperature at which vapor pressure becomes high that causes bubbles to form inside the body of the 6. Freezing point 7. Boiling point 8. Melting point 9. 100°C 10.0°C e. f. liquid the change from liquid to gas happens when solid turns to liquid freezing and melting point of water boiling point of water happens when a gas turns into a g h. i. liquid
Change of state occurs when heat is supplied or removed from a substance.
What is change of state?Change of state refers to the changes that occur when a substance changes from one physical state to another due to changes in its temperature.
It is also known as phase change.
Phase Change can also be defined as change from one state to another without a change in chemical composition.
Some of the phase changes include:
Freezing: when liquid changes to solidCondensation: when gas changes to liquidMelting: when solid changes to liquidEvaporation: when liquid changes to gasThe other terms associated with phase change include:
Boiling point: the temperature at which vapor pressure becomes high that causes bubbles to form inside the body of the liquidFreezing point: temperature wherein a liquid solidifiesMelting point: the temperature at which solid turns into a liquid.Learn more about change of state at: https://brainly.com/question/18372554
3CuCl2 + 2Al => 3Cu + 2AlCl3
The reaction includes the single replacement reaction and redox
Further explanationSingle replacement : one element replaces another element in a compound
A + BC ⇒ AC + B
The oxidation-reduction reaction or abbreviated as Redox is a chemical reaction in which there is a change in oxidation number
3CuCl + 2Al => 3Cu + 2AlCl₃
1. Single replacementAl replacing Cu in the CuCl compound
2. Redox reaction3Cu²⁺ + 6e⁻⇒ 3Cu reduction(oxidation number from +2 to 0)
2Al⇒2Al³⁺+6e⁻ oxidation(oxidation number from 0 to +3)
Which compound (A,B or C) is most likely an ionic compound?
Answer:
B
Explanation:
I believe it is compound B, because ionic compounds can form crystals, and they can conduct electricity when dissolved in water.
I hope it helps!!
Compound B is an ionic compound as it is hard,brittle and conducts electricity.
What is an ionic compound?Ionic compound or electrovalent compound is a type of compound which is formed between two elements when there is an exchange of electrons which takes place between the atoms resulting in the formation of ions.
When the atom looses an electron it develops a positive charge and forms an ion called the cation while the other atom gains the electron and develops a negative charge and forms an ion called the anion.
As the two atoms are oppositely charged they attract each other which results in the formation of a bond called the ionic bond.They are hard, malleable, ductile and good conductors of heat and electricity.They have high boiling points.
Learn more about ionic compounds,here:
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#SPJ2
12.0 g of carbon atoms, each of mass 12.0 amu
Answer:
A mole of carbon-12 atoms weighs 12 grams, and there are 6.022 x 1023 atoms in a mole. Dividing 12 grams by this incredibly large number of atoms tells us that one carbon-12 atom weighs 1.99 x 10-23 grams. Since a carbon atom weighs 12 AMU, one AMU is equivalent to 1.66 x 10-24 grams.
Explanation:
google.
If an atom has 10 protons, how many electrons will it have?
There are 10 protons, and 10 electrons in un-ionized neon. Hope this helped.
-
8. What is the balanced equation when aluminum reacts with copper (II) sulfate?
a. Al + Cu S Al S + Cu
b. 2A1+ 3CuSO4 → Al2(SO4)3 + 3Cu
c. Al + CuSO4 → AISO4 + Cu
d. 2Al + CuSO4 → Al SO4 + 2Cu
Answer:
b. 2A1 + 3CuSO4 → A12(SO4)3 + 3Cu
2Al + 3CuSO4 => (Al)²(SO4)³ + 3Cu
Your answer is letter b :)
Which of the following best defines one mole of a substance? (5 points) Mass, in grams, of each particle of the substance Mass, in grams, of the nucleus of the substance's atoms Amount of substance present in one atom of the substance Amount of substance present in Avogadro's number of particles of the substance
Answer: The mole, symbol mol, is the SI base unit of amount of substance. The quantity amount of substance is a measure of how many elementary entities of a given substance are in an object or sample.
Explanation:
Keep the scientific definition of energy in mind. Do people get energy from other sources besides food? If yes, what are they ?
Answer:
Except for humans, plants and animals get all the energy they require from natural sources: from the food that they eat, or from sunshine through photosynthesis. Some organisms derive the energy they need through oxidation of inorganic compounds.
different between larva of a silk work and larva of a bee
porcelain x has much smaller crystals in it than porcelain Y. suggest a reason for that
Answer: 22
Explanation:
What are some things that might happen that can change our air so that it is not health for plants?
Answer:
What are some things that might happen that can change our air so that it is not health for plants?
Explanation:
Air pollutants have a negative impact on plant growth, primarily through interfering with resource accumulation. Once leaves are in close contact with the atmosphere, many air pollutants, such as O3 and NOx, affect the metabolic function of the leaves and interfere with net carbon fixation by the plant canopy. Air pollutants that are first deposited on the soil, such as heavy metals, first affect the functioning of roots and interfere with soil resource capture by the plant.
Which is the function of space observatory technology?
classify objects in space
collect soil and rock samples
carry astronauts and equipment
capture panoramic surface images
Answer:
D the answer
Explanation:
Answer:
A
Explanation:
Classify objects in space
please help
1-Name the elements in gp1.
2-Why are these elements placed in gp1?
3-Mention the trends in atomic size,atomic number,mass number,reactivity,boiling & melting points.
Answer:
Are you studying?..............
Explanation:
lol
Identify: Now it is time to identify the mineral. Look at your Mineral Key. Find a mineral that has properties that match Sample A. Type the name under Mineral name in the Gizmo and press Submit. It may take several guesses to get it right.
What mineral is Sample A?
(NEED ANSWER ASAP)
Answer:
The answer is quartz!
Explanation:
It has a density of 2.6 g/mL, its color is Silver (variable), and its luster is glassy. It has a hardness of 7 and has a colorless streak.