Answer:
Hydroxide
Explanation:
Under the Lewis definition, hydroxide goes about as the Lewis base, giving its electron pair to H+. Accordingly, in this adaptation of the balanced response, what intrigues us isn't the salt that structures, however the covalent bond that structures among Gracious and H+ to frame water.
Hope this helped and I would love it if you give me brainlist, Also it's my birthday so I would love it more if you comment "Happy birthday IceWelder" and I will thank your account!
Have a great day~
-IceWelder-
Calculate the solubility in mol/L of Lead(II) carbonate (PbCO3) at 298 K.
Ksp = 7.4 x 10-14
02.7 107 mol/L
O 7.2 x 10-7 mol/L
o 3.5 x 10-4 mol/L
02.7 x 10 5 mol/L
o 7.4 x 10-7 mol/L
Answer:
2.7x10⁻⁷mol/L
Explanation:
Based on the equilbrium:
PbCO₃(s) ⇄ Pb²⁺(aq) + CO₃²⁻(aq)
The solubility product, Ksp, is defined as:
Ksp = 7.4x10⁻¹⁴ = [Pb²⁺] [CO₃²⁻]
Now, solubility is defined as the amount of PbCO₃ that is dissolved, that is the concentration of the ions. Thus:
Solubility = S = [Pb²⁺] = [CO₃²⁻]
Replacing:
7.4x10⁻¹⁴ = [S] [S]
7.4x10⁻¹⁴ = [S]²
S = 2.7x10⁻⁷mol/L
help me get this right no links
A 5.0 g piece of metal at 100c is cooled to 15c.It releases 318.3 J of heat in the process.Calculate the specific heat of the metal
Answer:
Water has a very high heat capacity, which makes it useful for radiators ... the temperature change that a given substance will undergo when it is either heated or cooled. ... The heat that is either absorbed or released is measured in joules. ... A 15.0 g piece of cadmium metal absorbs 134 J of heat while rising from 24.0°C to ...
plz help me get it right and no links
Answer:
get what right?
Answer:
You didn't post the question.
Explanation:
Edit your question and I'll try to help you.
Hope this helped? Lol.
I need help cause this teacher won’t stop cursin
Question 2: (Show your dimen analysis work!)
What is the mass of 7.2 mol of Sulfur?
g-
ppppoooooooooiiiiiiiiiinnnnnnnnnttttttttssssssss
Answer:
tttttttttttthankkssss!!!!!
what do you call the materials in which electricity pass easily?
a. insulator
b. conductors
c. non conductors
d. metallic
Answer:
Conductors
Explanation:
63.15 mL of calcium hydroxide is required to titrate 18.9 mL of a 0.200 M H3PO4 solution. What is the molarity of the basic solution?
Answer:
0.0898M is the molarity of the basic solution
Explanation:
The reaction of calcium hydroxide, Ca(OH)₂ with H₃PO₄ is:
3 Ca(OH)₂ + 2 H₃PO₄ → 6H₂O + Ca₃(PO₄)₂
To solve this question we must find the moles of H3PO4 that react. With the moles and the rection we can find the moles of Ca(OH)2. Using its volume we can find its molarity:
Moles H3PO4:
0.0189L * (0.200mol / L) = 0.00378 moles H3PO4
Moles Ca(OH)2:
0.00378 moles H3PO4 * (3mol Ca(OH)2 / 2mol H3PO4) = 0.00567 moles Ca(OH)2
Molarity:
0.00567 moles Ca(OH)2 / 0.06315L =
0.0898M is the molarity of the basic solutionIdentify the acid and conjugate base pair in the following equation:
Answer:
hola no ablo inalgun moderador puede acabar a este otro este me borró respuesta que no debió borrar
How does your Respiratory system work with your Cardiovascular system?
To supply oxygen to the body, the respiratory system works closely with the circulatory system. As oxygen is taken in into the lungs, it travels through blood vessels, which then circulate oxygen-rich blood to cells and tissues.
why is deuterium-tritium reaction the most promising nuclear fusion reaction for future energy production?
Answer:
The deuterium-tritium (DT, Figure 2) reaction is the most useful for fusion energy because it most easily overcomes the Coulomb repulsion, and it has the highest energy release among laboratory-feasible reactions.
Explanation:
When a deuterium nucleus (2H) and a tritium nucleus (3H) combine, the result is a helium nucleus and a very energetic neutron. Under the right circumstances, the energy released is sufficient to induce further fusion reactions.
why sodium chloride is a poor conductor of electricity in solid state?
Answer:
Because the electrons in this ionic compound arent free to move and so cannot carry charge. For an iconic compound to conduct electricity it must be a liquid, either in a molten form or dissolved in water.
Explanation:
Is this clear?
Using the half-life graph of cobalt-57, choose ALL the statements that are accurate.
es )
A)
The half-life of Co-57 is 20 days.
B)
The half-Life of Co-57 is 10 days.
C)
After fifty days, there is 0% or no Co-57 remaining.
D)
After twenty days have elapsed, about 25% of the Co-57 remains.
E)
Scientists have an 8 gram sample of Co-57. After thirty days, 1 gram
remains.
Answer: B) The half-life of Co-57 is 10 days
D) After twenty days have elapsed, about 25% of the Co-57 remains.
E) Scientists have an 8 gram sample of Co-57. After thirty days, 1 gram remains.
Explanation:
How many hydrogen atoms are present in an alkyne with 5 carbon atoms?
Answer:
cuatro
Explanation:
ino->4
Alkynes are triple bonded hydrocarbons. There are 7 hydrogen in an alkyne with 5 carbon atoms. This compound can be named as pentyne.
What are alkynes?Alkynes are hydrocarbons with one triple bond between two carbon atoms. alkynes are unsaturated compounds. Alkynes are named with the suffix 'yne' like ethyne, propyne etc..
There are three types of hydrocarbons namely, alkanes, alkenes and alkynes. Alkanes are saturated hydrocarbon having single bond between carbon atoms. Eg. methane , ethane etc all having suffix of 'ane'. Alkenes are unsaturated hydrocarbons with double bond between two or more carbon atoms.
Alkenes are named with the suffix 'ene'. Hence, the names become ethene, propene etc. The prefix for the names of hydrocarbons is based on the number of carbons. meth for 2, eth for 2 prop for 3, but for 4 and pent for 5 and so on.
The valency of carbon is 4 and it will bind to four other atoms. When it forms triple bond with a carbon it can bind to one hydrogen only. If it is a middle carbon then it dont have a hydrogen since either side will be carbons.
Thus for a 5 carbon alkyne, there will be total 7 hydrogens and the compound is pentyne.
To find more on pentyne, refer here:
https://brainly.com/question/15022928
#SPJ6
Help me get it right and no links
Answer:
i think the second answer " fish migration might be prevented" might possibly be your answer
How many Liters of space will a 70.0g sample of CO2 occupy? You must show all work to receive full credit.
Answer: the answer is 35.6
Explanation:
Look up the answer but take out you must show all your work and resources should pop up I’m on the same question now for chemistry so I’m putting 35.6L
help, also brainly dont be mean and delete this.
if you steal my points, please dont i need genuine help
Answer:
I dont understand what is the question you need help on-
Explanation:
What happens when a liquid becomes a gas?
A. It changes shape and volume
B. It changed volume but not shape
C. It changes shape but not volume
D. Nothing happens
Answer:
A It changes shape and volume
Explanation:If a liquid turns into a gas it starts to change shape since they are not the same
Answer:I believe it’s A
Explanation:when a liquid turns into a gas it the volume increases of the substance and of course the shape changes
Please Answer all 4 questions and i will give brainliest!
You haven't added the 4 questions, so when you upload them, i'll answer.
During a phase change, such as melting or boiling, the kinetic energy __. Highlight correct answer
Answer: During a phase change, such as melting or boiling, the kinetic energy increases.
Explanation:
Kinetic energy is the energy obtained by the molecules of a substance due to their motion.
When phase change such as melting or boiling takes place then it means heat is absorbed by the substance. As a result, their molecules more even more rapidly from one place to another due to which more number of collisions take place.
Hence, a change in phase of substance occurs as kinetic energy increases in melting or boiling process.
Thus, we can conclude that during a phase change, such as melting or boiling, the kinetic energy increases.
Explain how you find the instantaneous speed or velocity of an object
I dont want to know WHAT it is I want to know HOW to find it
Answer:
divide the distance by the average
Explanation:
ash QC ok
Arcturus is a star whose surface temperature is 4290 K. What is most likely the color of Arcturus? What is most likely the mass of Arcturus? about solar masses
Answer:
orange
0.8
Explanation:
On egde
Acturus which is a star with surface temperature 4290 K is orange in color and has a mass of 0.8 kilograms.
What is a star?
A star is an astronomical object comprising a luminous spheroid of plasma held together by self-gravity. The nearest star to Earth is the Sun. Many other stars are visible to the eye at night, but their immense distances from Earth make them appear as fixed points of light. The most prominent stars have been categorised into constellations and asterisms, and many of the brightest stars have proper names.
Astronomers have assembled star catalogues that identify the known stars and provide standardized stellar designations. The observable universe contains an estimated 1022 to 1024 stars.A star's life begins with the gravitational collapse of a gaseous nebula of material composed primarily of hydrogen, along with helium and trace amounts of heavier elements.
Learn more about star,here:
https://brainly.com/question/7379319
#SPJ2
Discuss the issue of “energy return” when considering a biofuel
Explanation:
Regarding non-GHG environmental impacts, research suggests that production of biofuel feedstocks, particularly food crops like corn and soy, could increase water pollution from nutrients, pesticides, and sediment (NRC 2011). Increases in irrigation and ethanol refining could deplete aquifers (NRC 2011).Regarding non-GHG environmental impacts, research suggests that production of biofuel feedstocks, particularly food crops like corn and soy, could increase water pollution from nutrients, pesticides, and sediment (NRC 2011). Increases in irrigation and ethanol refining could deplete aquifers (NRC 2011)
If the temperature of a gas inside a flexible container with a volume of 50 liters (L) decreases from 500°C to 100°C what will be the new volume of the container?
40.00L
10.00L
24.13L
103.6L
If the temperature of a gas inside a flexible container with a volume of 50 liters (L) decreases from 500°C to 100°C, then new volume will be 10L.
What is the relation between volume and temperature?Volume and temperature of the gas is directly proportional to each other and for this question, equation becomes,
V₁/T₁ = V₂/T₂, where
V₁ = initial volume = 50L
T₁ = initial temperature = 500°C
V₂ = final volume = ?
T₂ = final temperature = 100°C
On putting values, we get
V₂ = (50)(100) / (500) = 10L
Hence required volume of gas is 10L.
To know more about volume of gas, visit the below link:
https://brainly.com/question/4090112
#SPJ2
HELPPPPPP!!!! ILL MARK YOU BRAINLIEST!
A cube has a mass of 100g and each side is 5cm. What is its density?
Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide.Which statement best describes these three components of air?They are all classified as pure substances.They cannot react with another substance.They are chemically bonded to one another.They can be classified as elements.
Answer:
The three components of air are all classified as pure substances since they are not chemically bonded so they can be separated by certain processes and be present as a pure substance.
Explanation:
The components of air are all pure substances, the correct option is A.
What are Pure Substances?A pure substance is a single type of matter that cannot be physically divided into other types of matter.
A pure substance has a known and consistent composition at all times.
A physical combination of two or more pure chemicals that maintain each substance's unique chemical identity is referred to as a mixture.
A pure material exists as a distinct entity. Mixtures are not pure substances, but elements and compounds are.
The characteristics of the mixture are sort of an average of the characteristics of the constituent ingredients.
The ingredients that make up a compound are substantially distinct from one another. However, a blend resembles the constituent parts.
Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide.
Air is a mixture of oxygen, nitrogen, and carbon dioxide, which are pure substances.
The statement that best describes the components of air is that they are all pure substances.
To know more about Pure substances
https://brainly.com/question/24462192
#SPJ6
All the body cells in a human have the same hereditary information. However, they do not all look and function in the same way. This difference is caused by:
Answer:
All the body cells in a human have the same hereditary information, meaning they have the same DNA because they came from one source (both parents). However, they have differences in the way they function and this is as a result of each cell in the body have a pool of DNA and then they can select the genes they would like their features to be expressed depending on some factors such as signals they receive in and out of the cells, environmental factors, leading to different functions of the cells and the way they look.
.
A substance was analysed and was found to have a boiling point of 450 °C.
At room temperature it is a soft grey solid.
Which temperature could be the melting point of a pure sample of the substance?
А
-12 °C
B
56 °C to 72 °C
с
250 °C to 275 °C
D
142 °C
Answer:
D: 142 °C
Explanation:
In pure substances, melting and boiling points are usually two distinct temperatures.
They are -12°C and 142°C.
We are told that at room temperature, thus substance becomes a soft grey solid. Thus, we can say that the temperature of the melting point is 142°C.
1. Why won't Frank's daughter buy him deodorant anymore?
O it causes death
It doesn't mask the smell
o it causes cancer
She is superstitious
Answer:
no lo sick parece efalso jhkr
Explanation:
The Frank's daughter buy him deodorant anymore because it doesn't make smell.
What is deodorant?Deodorant is defined as a chemical applied to the skin to prevent or disguise body odor caused by the breakdown of perspiration or vaginal secretions by bacteria.
There are some side effects of deodorant if we use it in excess or regular.
Deodorants induce irritation and redness (due to alcohol), which leads to itching and, eventually, mild browning of the underarm area.
Some of the deodorant may contains to much of aluminum.
Too much aluminum in your system can lead to bone disorders and dementia.
Thus, the Frank's daughter buy him deodorant anymore because it doesn't make smell.
To learn more about deodorant, refer to the link below:
https://brainly.com/question/28357692
#SPJ2