Answer:
The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.
Explanation:
Answer:
The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.
Explanation:
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Lokesh is sawing boards to make a deck. What is the area of the deck?
12 ft
9 ftil
6 ft
8 ft
OA. 198 square feet
O B. 234 square feet
O C. 207 square feet
O D. 171 square feet
Answer:
Explanation:
171
What kind of chemical reaction occurs when fossil fuels and biomass are burned? What is produced in addition to energy?
Answer:
Combustion is familiar to all of us, but many do not realize that it is essentially a chemical reaction. In the process of combustion, two ingredients (biomass and oxygen) are combined in a high temperature environment to form carbon dioxide, water vapor, and heat
Explanation:
Combustion of Fossil Fuels. Combustion is a reaction with oxygen. In the case of the combustion of fossil fuels, the combustion reaction is what we think of as a burning process. In the combustion reaction, the species reacting with the oxgyen is oxidized (because oxygen is very electronegative).
How do I write a Major Electron Level Notation in the ground state??
Convert 154 kPa to atmospheres
Answer:
1.51986 atm
Explanation:
You can also search "154 kPa to atm" and a converter will appear
What is this element on this periodic table
80
Hg
Mercury
200.59
Balance the following equations. Show your work.
1. __________________ __P + __O2 → __P4O10
2. __________________ __Mg + __O2 → __MgO
3. __________________ __HgO → __Hg + __O2
4. __________________ __Al2O3 → __Al + __O2
5. __________________ __Cl2 + __NaBr → __NaCl + __Br2
Pls help :(
Answer:
1. 4P + 5O2 = P4O10
2. 2Mg + O2 = 2MgO
3. 2Hg = 2Hg + O2
4. 2Al2O3 = 4Al + 3O2
5. Cl2 + 2NaBr = 2NaCl + Br2
Explanation:
Sorry for the no explanation
what is the orbital diagram for manganese?
Explanation:
Oxidation States. +2,3,4,6,7
Electrons Per Shell 2 8 15
Electron Configuration [Ar] 4s2 3d5
1s2 2s2 2p6 3s2 3p6 4s2 3d5
limitations of paper chromatography
Answer:
Limitations of Paper Chromatography.
1.Large quantity of sample cannot be applied on paper chromatography.
2.In quantitative analysis paper chromatography is not effective.
3.Complex mixture cannot be separated by paper chromatography.
4.Less Accurate compared to HPLC or HPTLC.
Answer:
Limitations of paper chromatography is described below in complete details.
Explanation:
Limitations of Paper Chromatography
A huge number of representations cannot be employed in paper chromatography.In a quantitative investigation, paper chromatography is not sufficient.The complex compound cannot be separated by paper chromatography.Less Accurate correlated to HPLC or HPLC.nonya sack of biskety
6. How many molecules are in 2.7 moles of carbon dioxide
Answer:
2.7×6.022×10^23
=16.594×10^23 moleclules
Explanation:
number of mol= 2.7
1 mol of any element=6.022×10^23
therefote 2.7 mol =2.7×6.022×10^23
=16.594×10^23
Conduction and Convection involve the movement of particles. Radiation does not
True or False
Answer:
False
Explanation:
Because it is false heat will always transfer so it require matter
Answer:
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Explanation:
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In the reaction 2H2 + O2 --> 2H2O, how many moles of oxygen are required to fully react with 6.0 mol of hydrogen?
A) 1.0 mol
B) 2.5 mol
C) 3.0 mol
D) 7.5 mol
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Actually Welcome to the Concept of the Stochiometry.
Hence, here we can clearly see that, for 2 moles of Hydrogen, we need 1 mole of oxygen molecules,
so, then 6 moles of Hydrogen we need, 3 moles of Oxygen.
hence option c.) 3 mole
How many moles of carbon dioxide are formed after reacting completely with 20. moles of calcium carbonate?
Answer:
20. mol
Explanation:
i got it right on my quiz
PLEASE HELP
Michael is cooking pasta. He starts with just a pot of hot water then he adds the cold pasta how does the pasta get cooked?
A. Conduction
B. Convection
C. Boiling
D. Radiation
When placed in a container at room temperature, which substance has a definite volume but takes the shape of the container
Answer: anything that is a liquid
PLS HELP
Geothermal power plants drill deep wells underneath
Earth's surface to pump water that is heated by magma. The steam from this hot water spins a turbine
that is hooked up to a generator that produces electricity. The cold water is then pumped back into
Earth to be reheated.
Do you think geothermal energy is a renewable resource? Why or why not? What are the benefits of
using this energy to power homes and businesses? Can you think of any consequences to communities
or the surrounding environment?
I
Answer:
Geothermal provides a reliable source of energy as compared to other renewable resources such as wind and solar power. This is because the resource is always available to be tapped into, unlike with wind or solar energy.
Explanation:
Because its source is the almost unlimited amount of heat generated by the Earth's core. Even in geothermal areas dependent on a reservoir of hot water, the volume taken out can be reinjected, making it a sustainable energy source.
Answer:
A geothermal power plant gets energy from the heat deep below the surface of the earth. Shafts are drilled down, often as deep as several kilometres, one to pump water down to the hot rocks, and another nearby which will allow the heated water (or steam) to rise up. This steam is then used to spin electricity turbines to generate electricity.
Explanation:
What is the word equation for 2Mg+O2=2 MgO
Answer:
magnesium + oxygen ----> magnesium oxide
Answer: Magnesium+Oxygen=Magnesium Oxide
Explanation:
Mg is the chemical symbol for magnesium and O is the chemical symbol for Oxygen.
MgO is Magnesium Oxide because when you react a metal with oxygen you get a ‘metal oxide’.
What part of the isotope notation help you determine the number of electrons within an isotope?
Which describes a precipitate in a chemical reaction?
a gaseous reactant that forms aqueous products
a solid reactant that forms aqueous products
a gaseous product formed from aqueous reactants
a solid product formed from aqueous reactants
Answer:
D
Explanation: A precipitation reaction is a type of chemical reaction in which two soluble salts in aqueous solution combine and one of the products is an insoluble salt called a precipitate.
Answer: D. a solid product formed from aqueous reactants
Boreal forests are characterized by _______ trees. A. Creosote b. Eucalyptus c. Coniferous d. Deciduous Please select the best answer from the choices provided A B C
Answer:
c
Explanation:
coniferous trees, Tianga also called Boreal forest biome (major life zone).
hope it's perfect.
Answer: C is correct.
please help me someone ASAP!!!!
Answer:
Explanation:
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Iron (III) oxide is formed when Iron combines with oxygen in the air. How many grams of Fe₂O₃ are formed when 16.7 grams of reacts completely with oxygen? 4Fe + O₃ ---> 2Fe₂O₃
Answer:
23.9g of Fe₂O₃ are produced
Explanation:
Are formed when 16.7g of Fe reacts completely...
Based on the reaction:
4Fe + O₃ → 2Fe₂O₃
4 moles of Iron react per 1 mole of O₃ producing 2 moles of Fe₂O₃.
To solve this question we need to convert the mass of iron to moles. The ratio of reaction is 2:1 -That is, 2 moles of Fe produce 1 mole of Fe₂O₃-. Thus, we can find the moles of Fe₂O₃ produced and its mass:
Moles Fe -Molar mass: 55.845g/mol-:
16.7g Fe * (1mol / 55.845g) = 0.299 moles of Fe
Moles Fe₂O₃:
0.299 moles Fe * (2 mol Fe₂O₃ / 4 mol Fe) = 0.150 moles Fe₂O₃
Mass Fe₂O₃ -Molar mass 159.69g/mol-:
0.150 moles Fe₂O₃ * (159.69g / mol) =
23.9g of Fe₂O₃ are produced
IM IN A TEST NEED HELP ASAP
When 2.00 mol of the acid react with sodium carbonate, 1.00 mol of carbon dioxide is formed.Calculate the volume of carbon dioxide formed, in cm 3 , from 8.00 g of the acid at room temperature and pressure.
good luck on ur test i wish i could help u more but im only in 7th grade :/ and i dont know that yet, so sorry again! :(
Explanation:
What is the quantity of atoms in KMnO4 ?
Answer:
Potassium permanganate has a molar mass of 158.04 g/mol. This figure is obtained by adding the individual molar masses of four oxygen atoms, one manganese atom and one potassium atom
Explanation:
TELLURIUM ELECTRONS GAINED OR LOST?
Answer:
Gains
Explanation:
An atom of Tellurium gives off energy when it gains an electron to form an ion of Tellurium.
ANSWER ASAP!!
Why are Convection Currents important in Plate Tectonics?
Convection currents play a role in the circulation of fluids. Convection currents are the result of differential heating. ... Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.
There is your answer.
Answer:
The Earth's crust and upper part of the mantle are broken into large pieces called tectonic plates. ... The plates move because of convection currents in the Earth's mantle. These are driven by the heat produced by the decay of radioactive elements and heat left over from the formation of the Earth.
Explanation:
Write a balanced symbol equation for the incomplete combustion of hexane (C6H14) to produce soot.
Answer:
I77
Explanation:
Describe how differences in temperatures cause the convection process in oceans.
Answer:
The higher the temperature the more water evaporates and that affects the convection process
Explanation:
i still need a bit of help.
How many kg of salt would you need to add to make 3 dm3 of a 600 g/dm3 salt solution?
Answer:
.
Explanation: