The Linnaean system of classification sorts organisms into groups using a hierarchical system of levels.
List the following terms correctly in the Linnaean classification system from the most general to the most specific.
Order
Phylum
Species
Kingdom
Genus
Class
Family
→ →
Answer:
The order for the Linnaean classification system is:
Species, Genus, Family, Order, Class, Phylum, Kingdom, Domain
4 Al (s) + 302(8)
-
2Al2O3(s)
How many grams of Al2O3 can be formed from 77.58 g of Al and 33.92 g of O2?
(Hint: You need to determine which one is the limiting reactant).
Explanation 2Al2O3(s)-->4Al(s)+302(g)What is the total number of moles of O2 that are produced when 8.0 mol of Al2O3(s)are totally decomposed ?
A 300.0g sample of glass at 76.0C was placed in a large calorimeter containing 1000.0g of water. The water temperature was initially 23.9C. After the heat transfer, the water temp rose to 27.0C. Calculate the specific heat of the glass; then determine the percent error in this value.
For a 300.0g sample of glass at 76.0C placed in a large calorimeter containing 1000.0g of water, the specific heat of the glass and the percent error in this value are mathematically given as
C= 0.211 cal / g
% E = 5.5%
What are the specific heat of the glass and the percent error in this value.?
Generally, the equation for the balanced heat on glass is mathematically given as
Mg* SH of glass *dT of glass = Mwater * SH of water * dT of water
Therefore
300 * C * (76 - 27) = 1000 * 1 * (27 - 23.9)
C = 1000 * 3.1 / (300 * 49)
C= 0.211 cal / g
In conclusion,The precent error is
% E = (0.211 - 0.2) * 100 / 0.2
% E = 5.5%
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What would be the multiplier if oxygen had come out to be 2.33 mol?
2
3
4
Answer:
The multiplier is 3
Explanation:
For this problem, we need to find an integer for the number of moles of oxygen. Let's see the results by multiplying 2.33 and 2, 3, 4:
2.33 mol · 2 = 4.66 moles.
2.33 mol · 3 = 6.99 moles ≈ 7 moles.
2.33 mol · 4 = 9.32 moles.
You can note that if we multiply 2.33 moles by three (3), we obtain an integer of the number of moles.
every early childhood education program should develop a
A. plan for children and adults to eat separately
B. method to overcome food intolerance
C. procedure that allows families to bring in homemade food
D. written nutrition , feeding, and food service plan
Answer:
I guess D ...,...,.....
Which of these is not a cycle studied by scientists?
O carbon
o hydrogen
O
rock
O
water
Answer:
Rock
Explanation:
There is a carbon cycle that scientists have studied that shows how carbon is reused in an ecosystem so carbon is not the answer.
There is a hydrogen cycle that scientists have studied that shows how hydrogen is exchanged between biotic and abiotic sources.
There is no rock cycle
There is a water cycle that has been studied by scientists that shows the movement of water within the earth and the atmosphere
The answer is Rock
Choose the term that is described.
use of the Internet to access programs and data on computers that are not owned and managed by the user often using
large data centers
states that processing power for computers would double every two years
uses biological components like DNA to retrieve, process, and store data
the anticipated next generation of technologies that are expected to drastically increase processing capabilities
Answer:
first is cloud computing second is moores law third is biocomputing and the last one is quantum computing
Explanation:
The use of biological components like DNA to retrieve, process, and store data in the anticipated next generation of technologies that are expected to drastically increase processing capabilities are not possible.
What is DNA?
DNA has a property by which it can replicate that si why said to be self-replicating material and always present in all living organisms few of them which cannot take but almost all.
DNA is the main constituent of chromosomes which is responsible to carry genetic information to the next generation and which cannot be used in computers as it is a natural thing controlled by nature only.
Therefore, the use of biological components like DNA to retrieve, process, and store data in the anticipated next generation of technologies that are expected to drastically increase processing capabilities are not possible.
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4. How many grams of water are produced from 100 grams of oxygen?
Answer:
11 grams of hydrogen and 89 grams of oxygen
Explanation:
When is a secondary source more helpful than a primary source?
A. When you are an expert in the field being studied in the experiment
B. When you want to perform the experiment yourself
C. When you want all the details of the experiment
D. When you want a quick summary of the experiment
Answer:
D. When you want a quick summary of the experiment
Explanation:
Answer:
I'm pretty sure the answer is D
Explanation:
Typically with primary sources - there is a lot of detail and secondary sources generally lack some of the key details. This is why I believe D to be right because it would be just a quick summary and a few details.
I hope this helps you :)
Other than the process in the title, what are two other processes that are explained in the passage? A. the changing of seasons and precipitation B. photosynthesis and chlorophyll C. precipitation and temperature change D. photosynthesis and transpiration
PLEASE HELP
source: the life of a leaf
Answer:
life of leaf and leaf is obob
"A certain group one metal combines with Hydrogen, to form a molecule with the formula XH. The equilibrium bond length of this compound is 1.5957 Å. If this molecule exhibits a pure rotational spectrum with a rotational constant of 7.5131cm−1, calculate the molecular weight of metal X."
I thought that you would use a mix of the reduced mass and rotational constant formulas to get:
[tex]1.66e-27(\frac{(m1)(m2)}{m1+m2})=\frac{h/2\pi}{4\pi Bcr^{2} }[/tex]
However, that just gives a negative answer, and mass cannot be negative. I am confused and would appreciate any help
Based on the bond length, the molecular weight of the unknown metal X is 23.
What are ionic compounds?Ionic compounds are compounds which are formed between oppositely charged ions.
When hydrogen combines with the group 1 metals, they form ionic compounds.
The group one metals that combine with hydrogen to firm ionic bonds include:
Lithium to give Lithium hydride with equilibrium bond length of 0.239Å. Sodium to give sodium hydride with equilibrium bond length of 1.896Å.Potassium to give potassium hydride with equilibrium bond length of 2.321ÅThe molecular weight of lithium is 7 g
The molecularweight of sodium is 23
The molecular weight of Potassium is 39.
Therefore, based on the equilibrium bond length, the molecular weight of the unknown metal X is 23.
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What coefficient should be written in front of CO2 to balance the chemical reaction?
2C8H18 + 25O2 → ______ CO2 + 18H2O
Answer:
The answer is 16 as the coefficient
Explanation:
I hope this helps
Convert 0.014 Mg to moles
Determine the pH of 1 x 10^-2 NaOH.
a. 2.0
b. 4.0
c. 8.0
d. 12.0
Answer:
i think the answer is 12.0
I need help with Chemistry: Mole Conversion
It must be answered in complete detail
Answer:
As Per Given Information
Number of moles SO₂ ( Sulphur dioxide ) is 0.30
We 've been asked to find the number of atoms in given moles of Sulphur dioxide .
Value of Avogadro Number is 6.022 × 10²³ mol⁻¹
For finding the number of atoms we will use formale
[tex]\underline{\boxed{\textbf{\textsf{ Number \: of \: atoms \: = Given \: moles \: . Avogadro \: number}}}}[/tex]
Putting the given value we obtain
[tex] \sf \twoheadrightarrow \: Number \: of \: atoms \: = 0.30 \times 6.022 \times {10}^{ 23} \\ \\ \sf \twoheadrightarrow \: Number \: of \: atoms \: = \: 1.8066 \times {10}^{ 23} atoms[/tex]
So, the number of atoms in sulphur dioxide is 1.8066 × 10²³
No of atoms
No of moles ×Avagadro no0.3×6.023×10²³1.8066×10²³atomsWhat is the molarity of 2.00L of a solution containing 1.00 mole of KCl?
Question 4 options:
0.500M
2.00M
1.00M
.100M
The molarity of the solution is equal to 0.500M.
Mole calculation
To calculate the molarity of a solution, one must use the value of the amount of moles and the volume, so that:
[tex]M = \frac{mol}{v}[/tex]
So, applying the values given in the question we have:
[tex]M = \frac{1mol}{2L}[/tex]
[tex]M = 0.5mol/L[/tex]
So, the molarity of the solution is equal to 0.500M.
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Which structure of the skeletal system holds bones together?
joint
ligament
cartilage
Answer:
The answer is ligament
Explanation:
Hope that helps!
Write an introductory text about metals, adding details you know
Answer:
See below
Explanation:
Most of the elements found on earth are metals. A look at the periodic table shows that these elements occupy the entire left-hand stretch of the table, from the main group, through the transition metals, lanthanides, actinides, alkali and alkaline earth elements. One element included here, hydrogen, is rarely classified as a metal. On earth, hydrogen is a gas, and it is usually classified as a non-metal, like oxygen and nitrogen. However, at very low temperatures and very high pressures, hydrogen is a solid, and under the right conditions it is expected to behave more like a metal. It is thought that gas giants, such as Jupiter and Saturn in our solar system, may have metallic hydrogen cores. Metallic elements are not generally found as single atoms. Instead, the atoms in an element such as iron cluster together to make a larger structure. The materials formed in this way have some similar properties. Metals are shiny. Metals are malleable; they can be bent and formed into different shapes (at least when heated). Metals are good conductors of electricity. In metals, large groups of atoms cluster together. Metal atoms form large, extended arrays, with the atoms repeating in specific patterns throughout the solid.
The properties of metals are really important. The fact that metals are malleable allows them to be formed into sheets that can be used to make cars, airplanes, railway lines, cargo containers and ships, as well as more delicate items such as jewelry and surgical tools. A related property, ductility, allows metals to be stretched into long, thin wires. Together with the conductivity of metals, this property allows transmission lines to carry electricity from generating stations to people like you. Sometimes, the source of electricity is hundreds of miles away; electricity used to power a laptop in New York may come from places like La Grande Baleine or James Bay, in northwestern Quebec. Some of these properties can be understood by thinking about the structure of metallic elements. A great deal of our structural understanding of metals and other materials comes from x-ray diffraction studies. A very focused beam of x-rays can be sent into a material, where they will bounce off the atoms and scatter in different directions. The outcome sounds chaotic, but if the solid is highly organized, the x-rays behave in very predictable ways. The result is an x-ray diffraction pattern. A diffraction pattern is a little like the pattern of ripples on a pond when a stone is thrown into calm water. The pattern can be studied and decoded mathematically to find the locations of the atoms within the material. X-ray diffraction can reveal the atomic-level structures of highly ordered materials such as metals. What does x-ray diffraction tell us? Evidently, a chunk of metal is not just a mass of atoms stuck together randomly. Instead, the atoms arrange themselves in neat layers in very specific ways. These layers of atoms sit on top of each other to form a three-dimensional solid. One of the properties that results from this organized arrangement of atoms is the malleability of metals. If you take a nice, soft metal such as copper, after annealing it in a fire or oven, it can be bent and shaped easily. With copper, this can be done even after the metal has cooled to room temperature. When you bend the copper, you are actually causing layers of atoms to slide over each other, until you stop bending and they come to rest in a new location. If you have ever done this, you'll know that the more you work with the copper, the harder it is to bend. That's because while you are sliding layers of atoms back and forth, occasionally an atom (or an entire row of atoms) slips out of place. It is no longer part of a smooth layer, and so other atoms can't slide past it as easily. This situation is called a defect. Once there are enough defects in the metal, it is impossible to bend the material anymore. Metal atoms are found in organized layers. Because these layers can roll over each other, metals can be worked into different shapes.
If you combine 390.0 mL of water at 25.00 ∘C and 100.0 mL of water at 95.00 ∘C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.
heat water 1 = heat water 2
mass of water = density x volume
because density = 1 g/ml then:
mass water 1 = 100 g
mass water 2= 390 g
Input the equation:
mcΔt 1 = mcΔt 2
100 . c . (95 - T) = 390 . c . (T - 25)
9500 - 100T = 390T - 9750
9500+9750 = 390T+100T
19250=490T
T=39.29 °C
Liquid octane CH3CH26CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. If 78.8g of carbon dioxide is produced from the reaction of 83.39g of octane and 122.6g of oxygen gas, calculate the percent yield of carbon dioxide.
Answer:
get it back to me by tomorrow
Explanation:
I am currently in life generally but will be perfect
Is it as critical for your tap water to be a good buffer as it is for the water at the
nearest lake to be a good buffer? Why or why not?
Yes, it is critical for your tap water to be a good buffer as it is for the water at the nearest lake to be a good buffer.
Why the tap water and lake should be good buffer?This is because the tap water is the water coming from the nearest lake so it should also be a good buffer just like the nearest lake so we can conclude that it is critical for your tap water to be a good buffer as it is for the water at the nearest lake to be a good buffer.
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When an ACID ionizes in water, the number of hydronium ions in the solution _____ and the value of the pH _?
decreases; increases
decreases; decreases
remains the same; cannot be predicted
increases; decreases
increases; increases
How many moles are in 59.6 grams of BaSO4
Answer:
0.2553669915026199 BaSO4
Explanation:
hi, give brainliest?
Which are the functions of the skin? Check all that apply.
helps control body temperature
moves parts of the body
serves as a barrier of protection
releases waste materials
produces vitamin A
gives the body support and shape
Answer:
A,C,D
Explanation:
I TOOK THE TEST
Is the size of your muscles a part of your DNA? Explain.
Answer:
yes
Explanation: Our DNA determines how many muscle fibers a person is born with. This number never changes cause one can't make more muscle fibers during their lifetime. With more muscle fibers, one has the potential to be stronger.
It is an acquired trait because you could train your muscles to become bigger. When you train, for example resistance training, your muscle produces more myofilaments which increases their diameter. This is why you develop large muscles when you train.
Ca+Fe(No3)2—> Fe+Ca(No3)2
What is the balanced reaction?
Answer:
Ca+Fe(No3)2 —> Fe+Ca(No3)2
Explanation:
This reaction is already balanced, you can tell because if you add up all the numbers that are on each side you get the same number. (3+2=2+3)
As shown in the following reaction, 50.0 grams of Magnesium (Mg) and 75.0 grams of (HCl) are reacted:
Mg + 2 HCl -----------> MgCl2 + H2
What is the limiting reactant?
Answer:
mg
Explanation:
there are 2.05 moles mg and 2.05 moles hcl
MM Mg = 24 g/mol
MM HCl = 36.5 g/mol
mol Mg = 50 : 24 = 2.083
mol HCl = 75 : 36.5 = 2.055
moles of reaction: divide the moles of each reactant by its corresponding coefficient in the balanced equation.
Mg : HCl = 2.083/1 : 2.055/2 = 2.083 : 1.028
HCl is the limiting reactant because it gives the fewest moles of reaction.
5) What type of energy does an x-ray give off?
A) Radiant B) Mechanical C) Electrical
D) Chemical
PLEASE HELP!
If 0.00516 mols of HC2H302 are reacted with 0.00585 mols of NaHCO3, which is the limiting reactant?
Show your work.
NaHCO3(s) + HC2H302(aq) → C2H302Na(aq) +H2CO3(aq) H2CO3(aq) - H2O(1) +CO2(g)
Look at the reaction
More than 1mol of HC2H3O2 is required so the mols will be doubled atleast
0.00516(2)=0.01032molNow
NaHCO_3 is less
So Sodium bicarbonate is the limiting reagentIn the given query, the limiting reagent in provided chemical reaction is: [tex]\rm NaHCO_3(s) + HC_2H_3O_2(aq) \rightarrow C_2H_3O_2Na(aq) +H_2CO_3(aq)+ H_2O(l) +CO_2(g)[/tex] is [tex]\rm HC_2H_3O_2[/tex].
In a reaction, limiting reagent is a chemical substance that is completed used or is totally consumed resulting into limiting the formation of further products.
In the provided reaction:
[tex]\rm NaHCO_3(s) + HC_2H_3O_2(aq) \rightarrow C_2H_3O_2Na(aq) +H_2CO_3(aq)+ H_2O(l) +CO_2(g)[/tex]
Given: 0.00516 mol [tex]\rm HC_2H_3O_2[/tex] and 0.00585 mol [tex]\rm NaHCO_3[/tex].
Using balanced equation, the stoichiometric ratio of [tex]\rm HC_2H_3O_2[/tex] to [tex]\rm NaHCO_3[/tex] is 1:1. Meaning that, for every 1 mole of [tex]\rm HC_2H_3O_2[/tex], we need 1 mole of [tex]\rm NaHCO_3[/tex].
Therefore, the number of moles of [tex]\rm NaHCO_3[/tex] needed to react with 0.00516 mol of [tex]\rm HC_2H_3O_2[/tex] is:
0.00516 mol [tex]\rm HC_2H_3O_2[/tex] × (1 mol [tex]\rm NaHCO_3[/tex]/ 1 mol [tex]\rm HC_2H_3O_2[/tex])
= 0.00516 mol [tex]\rm NaHCO_3[/tex].
Since we have 0.00585 mol of [tex]\rm NaHCO_3[/tex], which is greater than the amount needed (0.00516 mol), [tex]\rm NaHCO_3[/tex] is not the limiting reactant.
Calculate the number of moles of [tex]\rm HC_2H_3O_2[/tex]needed to react with 0.00585 mol of [tex]\rm NaHCO_3[/tex]:
0.00585 mol [tex]\rm NaHCO_3[/tex] × (1 mol [tex]\rm HC_2H_3O_2[/tex]/ 1 mol [tex]\rm NaHCO_3[/tex]) = 0.00585 mol [tex]\rm HC_2H_3O_2[/tex]
As we see, only 0.00516 mol of [tex]\rm HC_2H_3O_2[/tex] are present, which is less than the amount needed (0.00585 mol), [tex]\rm HC_2H_3O_2[/tex] is the limiting reactant.
Therefore, [tex]\rm HC_2H_3O_2[/tex]is the limiting reactant in the provided chemical reaction.
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Do you think plate motion would take place on that planet? Why or why not? (Use the words in the Word Bank if it helps you answer the question.)
Explanation:
Tectonic plate motion only occurs when the core of the planet is molten. If the planet does not have a magnetic field, then that means the core is frozen. If the core is frozen, then there is no plate motion