Answer:
None
Explanation:
There are two S=O. bonds and two S-O bonds in sulfate ion lewis structure. Sulfur atom is the center atom and four oxygen atoms are located around sulfur atom. There are no lone pairs in the last shell of sulfur atom.
each side of a square is 8 by 10 metre find the area of the square
Answer and Explanation:
I believe the answer is 8
I need help boys-girls
Answer:
1.) B
2.) water
Which of the following processes is involved in the formation of sedimentary rocks?
O metamorphism
O cooling
O subduction
O deposition
Answer:
deposition
Explanation:
why is respiration considered an exothermic process
Answer:
Respiration is considered as exothermic reaction because energy is released in this process. Glucose combines with oxygen present in our cells to form carbon dioxide and water along with energy.
Explanation:
Good Luck!
Respiration is considered as an exothermic reaction because, in the respiration process, oxidation of glucose takes place which produces a large amount of heat energy stored in the form of ATP. This is shown in the following chemical equation C 6
I will mark somebody brainliest
Huck, I need help, and I don't get help, I'll Ducking do it again
What is the definition of an alternative acid?
alternative acids are more cost-effective and allow for flavor expression through nontraditional methods and ingredients, making for increased versatility.
What does Boyle's Law describe?
Answer: Image result for What does Boyle's Law describe?
This empirical relation, formulated by the physicist Robert Boyle in 1662, states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature; i.e., in equation form, pv = k, a constant.
Explanation:
How many moles of NaNO, would you need to make 500 mL of a 2.5 M
solution of NaNO?
Answer:
1.25 moles NaNO
Explanation:
Molarity = moles/Volume (L)
moles = Molarity (M) x Volume (L)
M = 2.5 M
V = 500 mL = 0.5L
moles = M x V = 2.5 x 0.5 = 1.25 moles
Which surface will produce the most friction for the fan cart?
Glass
Wood
Metal
Cement
Answer:
wood
Explanation:
I think
I hope it helps
Use the balanced chemical equation below to answer the following: How many moles of
oxygen are required to react along with 6 moles of butane (C4H10) according to the
following equation? Do not list units in your final answer.
2 C4H10 + 13O2 ------> 8CO2 + 10H2O
hmm, i not sure i come back later with the answer.
Please help not to fail chemistry
Answer:
I think the heat on the surface or the fire under the dish cost evaporation coz when the water got heat tge water evaporate or go to the upper part of dish and cool down then back to the bottom.
Explanation:
Plss correct me if im wrong
Which of the following processes is NOT a way that carbon could move between the atmosphere and the biosphere?
Question 4 options:
respiration (breathing)
combustion (burning)
deep burial, compaction, and cementation
photosynthesis
Question 5 (2 points)
What is the only natural way that carbon can move OUT of the geosphere?
Question 5 options:
burning of fossil fuels
volcanic eruptions
dissolution
decomposition
Question 6 (1 point)
Which carbon reservoir contains the MOST carbon?
Question 6 options:
fossil fuels
atmosphere
land biomass
rocks
Question 7 (2 points)
Which carbon reservoir changes the quickest and has the biggest direct effect on climate?
Question 7 options:
land biomass
ocean
atmosphere
rocks
Question 8 (2 points)
Which best describes the process of ocean acidification?
Question 8 options:
The ocean absorbs more human-produced CO2, causing the acidity to increase
The ocean releases more human-produced CO2, causing the acidity to decrease
The ocean absorbs more natural CO2, causing the acidity to decrease
The ocean receives more polluted runoff, causing the acidity to increase
Question 9 (2 points)
What is a potential impact of ocean acidification?
Question 9 options:
Animals will have a harder time building their shells
Corals may have a harder time building their skeletons
Ocean ecosystems may suffer, making it harder for humans to get food from the ocean
All of the above
Answer:
question 1 i believe is c i will put the other answeres in comments
when i finish the test
Explanation:
The carbon cycle plays an important in maintaining carbon balance on the earth.
What is the carbon cycle?The carbon cycle is the cycle by which carbon is recycled between the atmosphere and the geosphere.
In the carbon cycle, the process of recycling carbon do not include deep burial, compaction, and cementation.
Volcanic eruptions are one natural way that carbon can move OUT of the geosphere.
Fossil fuels, atmosphere, land biomass and rocks are all carbon reservoirs, but fossil fuels contains the MOST carbon.
The atmosphere is the carbon reservoir that changes the quickest and has the biggest direct effect on climate.
Ocean acidification occurs because the ocean absorbs more human-produced CO2, causing the acidity to increase.
A potential impact of ocean acidification is that ocean ecosystems may suffer, making it harder for humans to get food from the ocean.
Therefore, the carbon cycle is important in maintaining carbon balance on the earth.
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47. How did you determine the stoichiometric coefficients of the X-630 reaction?
Please help! Is hot tea with lemon juice a heterogeneous, homogeneous, or pure substance? Will award brainliest!
Answer:
Homogeneous
Explanation:
Pure substances are untouched substances.
Homogeneous mixtures are in uniform.
Heterogeneous mixtures are un-uniform.
The formula for zirconium(VI) dichromate
Answer:
Zr(Cr2O7)2
Explanation:
What is the mass in grams of 0.250 mol CH2Cl2?
Answer:
21.2 grams CH2Cl2
Explanation:
Number of moles: .25
Molar mass of CH2Cl2: 84.93 g/mol
Mass in grams: 84.93(0.250) = 21.2325
Considering the definition of molar mass, the mass of 0.250 moles of CH₂Cl₂ is 21.225 grams.
Definition of molar massThe molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.
The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.
Molar mass of CH₂Cl₂In this case, you know the molar mass of the elements is:
C= 12 g/moleCl= 35.45 g/moleH= 1 g/moleSo, the molar mass of the compound CH₂Cl₂ is calculated as:
CH₂Cl₂= 12 g/mole + 2× 1 g/mole + 2× 35.45 g/mole
Solving:
CH₂Cl₂= 84.9 g/mole
Mass of 0.250 mol CH₂Cl₂Next, you can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 84.9 grams, 0.250 moles of the compound contains how much mass?
[tex]mass=\frac{0.250 molesx84.9 grams}{1 mole}[/tex]
mass= 21.225 grams
The mass of 0.250 moles of CH₂Cl₂ is 21.225 grams.
Learn more about molar mass:
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Summarize how a dinosaur can become a fossil.
How can changing the reaction conditions influence the yield of a chemical reaction?
please explain in detail
Answer:
I found this on the web hope this helps.
Explanation:
Le Châtelier's Principle states that a change in pressure, temperature, or concentration will push the equilibrium to one side of the chemical equation. So, if you manipulate the conditions to favor the product side, you increase the yield and vice versa.
The diagram shows a pedigree for a recessive inherited trait. If H represents the dominant allele and h represents the recessive allele what are the genptypes of the parents shown in the pedigree.
Answer:
Hh
Explanation:
if you have a dominant allele and a recessive allele they'd be different (heterozygous)
If H represents the dominant allele and h represents the recessive allele, Hh is the genotypes of the parents shown in the pedigree.
What is genotypes?The type of variation present at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolize it. For illustration, BB, Bb, and bb might be employed to denote a certain gene variant.
The actual DNA sequence, such as CC, CT, or TT, can also serve as a representation of a genotype. In a single experiment, the genotypes spanning millions of sites in a genome can be determined using DNA sequencing as well as other techniques. If H represents the dominant allele and h represents the recessive allele, Hh is the genotypes of the parents shown in the pedigree.
Therefore, Hh is the genotypes of the parents shown in the pedigree.
To know more about genotypes, here:
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Long ago, living things were divided into two main groups: _________
Answer:
I think the answer is Prokaryote and Eukaryote
Explanation:
What determines the type of bond (single, double, or triple) an element will form?
The type of bond formed depends on the valence electrons (no: of electrons in the outermost shell)
When two atoms share one electron pair between each other, then they are said to be bonded by single covalent bond
When two atoms share two electron pairs between each other, they are said to be bonded by double covalent bond
When two atoms share three electron pairs between each other, they are said to be bonded by triple covalent bond.
Hope u understand
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a student is trying to classify an unidentified, solid gray material as a metal or a non metal. which question will best help the student classify the material?
F. Is the material malleable or ductile?
G. Does the material feel hard to the touch?
H. Will the material float in water?
J. Does the material feel rough or smooth?
Answer:
i think the answer is f as metals are malleable and ductile
Answer:
F
Explanation: Most metals carry the trait that they are malleable and ductile.
What is the chemical equation?
Electrolysis (splitting) of water.
H20-->
Answer:
hydrogen(H2) and oxygen gas(O2
An atom will be neutral if which of the following are true of its arrangement of subatomic particles?
The number of its protons is equal to the number of its electrons
All of its electrons orbit its nucleus at exactly the same distance
The sum of the atom's protons and neutrons is greater than zero
The nucleus of the atom contains more neutrons than anything else
Which of the following could not be an empirical formula? a CH4 b Na2O c NaCl d H2O2
Answer:
C NaCl will not be an empirical formula.
Answer:
C naCl
Explanation:
it wouldnt be an empiricla formula
A carrier *
Organism that transmits disease through blood
O Person or animal that is infected with the disease but is asymptomatic
O Used to treat a bacterial infection, cannot be used to prevent an infection
Used to prevent a viral infection, must be given before the person is infected
Answer: carrier, is a person or other organism that has inherited a recessive allele for a genetic trait or mutation but usually does not display that trait or show symptoms of the disease. Carriers are, however, able to pass the allele onto their offspring, who may then express the genetic trait.
i think it is Person or animal that is infected with the disease but is asymptomatic
Explanation:
what is the formula for carbon decabromide?
Answer:
CBr4
Explanation:
Answer:
CBr4
Explanation:
It is CBr4 I hope it helps
How are chemical reactions classified from an energy point of view?
Answer:
normanie tykohoukdh kjdj jj jjd
Explanation:
calculate the [H+] if the [OH-] is 7.34x10^-10
pls show work