Answer:
I think 100 times greater than the electric force
Explanation:
Because, as it is the greatest, it should be a larger number.
Answer:
c.) more than 100 times greater than the electric force
Explanation:
The awnswer is c :)
Help me with this this is something i dont know and its not on here please help meeeeeee
Answer:
it would be option A
Explanation:
This is becuase if you look at the chart you can see tyhat the group of rats that got feed to vitamans did gain more wati then the ones on the normal diet.
How many neutrons does this atom have?
4
6
10
14
Answer:
6
Explanation:
Electrons are floating around, and protons are outside of the nucleus center. The ones in the center are neutrons. I hope this helps.
A hydrocarbon contains 92.24 % carbon by mass and has a molar
mass of 78.12 g mol-1.
Determine the empirical formula and molecular
formula of the hydrocarbon
Explanation:
so for this one you know 92.24 is the mass of C so to work out the mass of hydrogen u so 100-92.24=7.76
so
C : H
92.24/12 : 7.76 /1
7.68 : 7.76
so 7.76÷7.68=1.01
so CH
12+1=13
78.12÷13=6.009
so CH×6= C6H6
hope this helps:)
Barbara is conducting an experiment to observe heat flow. She places one piece of metal in a freezer at -18 degrees Celsius (°C) and a second piece of metal in an oven at 200 °C. After 2 hours, she takes the metal pieces out of the freezer and oven and places them both in the same beaker of boiling water for two minutes. Which of the following best describes how some of the heat will initially move in this system?
Heat will flow from the frozen metal into the hot metal.
Heat will flow from the boiling water into the hot metal.
Heat will flow from the boiling water into the frozen metal.
Heat will flow from the frozen metal into the boiling water.
Answer: The correct answer is heat will flow from the boiling water into the frozen metal.
Explanation:
According to the law of conservation of energy, energy cannot be destroyed nor created but it can be transformed from 1 form to another form.
There are 3 processes of heat transfer:
Conduction: This type of heat transfer occurs when there is direct contact between the two objects.Convection: This type of heat transfer occurs when there is a movement of fluid (liquid or gas) due to the movement of hot layers to the top and cold layers to the bottom which leads to convection currents. Radiation: This type of heat transfer occurs when there is a direct transfer of energy through space.The heat moves from a hot surface to a cold surface to maintain equilibrium.
We are given:
A metal is placed in a freezer (cold object) and another metal is placed in an oven (hot object) and then both the metals are placed in boiling water.
Initially, the heat will flow from the boiling water (hot object) into the frozen metal (cold object) to maintain equilibrium
Hence, the correct answer is heat will flow from the boiling water into the frozen metal.
Which mineral can be easily scratched by a finger nail, has cleavage, a metallic luster and has a black streak? 11. Which two elements are found in all minerals on the chart?
Answer:
Galena
Explanation:
Galena is also known as lead glance. This is a natural mineral of the form lead(II) sulfide. It is one of the most important ore for lead. It is widely found and is mainly distributed in sulfide minerals.
Galena can be easily scratched by finger nails. It has black streak and have a metallic luster. Galena have cleavage. It usually occurs as cubic crystals.
If a shell can hold a maximum of 32 electrons, what is the value of n?
Answer:
The value of N would be 4.
Explanation:
The equation would be 2n^x = 32 and therefore, 4.
What important points do you need to remember about combustion?
Explanation:
A substance burning in the presence of oxygen and leads to the formation of heat and light is called combustion.
Some important points about combustion are as follows:
Fuel should be present for burning.Air should be present for the supply of oxygen.There should be heat (or ignition temperature) to initiate the chemical reaction.What makes radioisotopes useful for dating objects?
O A. They have unique emission spectra.
O B. They decay at a predictable rate.
C. Their decay products are easy to detect.
O D. They all have extremely long half-lives.
Answer:A
Explanation:
Option D. They all have extremely long half-lives makes radioisotopes useful for dating objects.
What are radioisotopes?Radioisotopes exist as radioactive isotopes of an element. They can also be described as atoms that include an unstable combination of neutrons and protons, or surplus energy in their nucleus.
A radionuclide exists as a nuclide that contains excess nuclear energy, causing it unstable. This excess energy can be utilized in one of three methods: emitted from the nucleus as gamma radiation; assigned to one of its electrons to terminate it as a conversion electron; or utilized to create and emit a unique particle from the nucleus.
Radioactive isotopes of radium, thorium, and uranium, for example, exist found naturally in rocks and soil. Uranium and thorium also happen in trace amounts in water. Radon, induced by the radioactive decay of radium, stands present in the air.
Hence, Option D. They all have extremely long half-lives makes radioisotopes useful for dating objects.
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1) list at least four uses of metals from your day to day life.
Answer:
alloy,copper,gold, silver,cobalt
Explanation:
4. A shepherd is increasing his heard from 300 goats to 600 goats. Currently, the land is sufficient to feed 300 goats; what could be the result?
Answer: 300 goats want get food
Explanation:
Why does the melting of the ice caps lower the concentration of salt in the
ocean?
A. The ice caps have a high salt concentration.
B. The ice caps do not contain water.
C. The ice caps are made of freshwater
0
D. The ice caps are melting slowly.
Answer:
The answer is C
Explanation:
There is no salt in ice hope this helped :)
Answer: C
Explanation: The ice caps are made of fresh water, so when they melt they are adding more freshwater into the ocean therefore lowering the concentration of the salt.
Ayudaaa. ¿Cuál es el punto de ebullición del agua en grados Celsius?
The question is: Help. What is the boiling point of water in degrees Celsius?
Answer: The boiling point of water in degrees Celsius is [tex]100^{o}C[/tex].
Explanation:
The temperature at which vapor pressure of a liquid becomes equal to the atmospheric pressure is called boiling point.
For example, the boiling point of water is [tex]100^{o}C[/tex].
This means that at [tex]100^{o}C[/tex] the molecules of water are having an equilibrium between liquid and vapor state of theirs.
Thus, we can conclude that the boiling point of water in degrees Celsius is [tex]100^{o}C[/tex].
What is the electron structure of an oxygen atom?
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How many grams of Cl2 will be produced along with 250.0 kJ of heat in the following reaction? Pc 5(g) + 87.9 k/
Answer:
As per the given chemical equation, 1 mole of Cl₂ is formed when 87.9 kJ of heat is absorbed. 201.64 g of Cl₂ will be produced along with 250.0 kJ of heat in the given reaction.
Explanation:
Which list BEST identifies how the arrows should be arranged around the paper leaf in the model to represent the movement of matter and flow of energy during photosynthesis? A. Point into Leaf: sugars, oxygen (02), Point away from leaf: carbon dioxide(CO2), water(H2O) B. Point into Leaf: sugars, sunlight, Point away from leaf: carbon dioxide(CO2), oxygen (02), water(H2O) C. Point into Leaf: water(H2O), sunlight, Point away from leaf: carbon dioxide(CO2), sugars, oxygen (02) D. Point into Leaf: water(H2O), carbon dioxide(CO2) sunlight, Point away from leaf: sugars, oxygen (02
Answer:
D. Point into Leaf: water(H₂O), carbon dioxide (CO₂) sunlight, Point away from leaf: Sugars, oxygen (O₂)
Explanation:
Photosynthesis is the process used in the production of chemical energy in the form of energy containing organic compounds and oxygen from atmospheric carbon dioxide and liquid water enabled with the energy captured from light (mainly Sunlight) by the chlorophyll in green plants and other organisms
The basic chemical reaction involved in a photosynthesis reaction is presented as follows;
[tex]{}[/tex] Sunlight
[tex]{}[/tex] ↓
[tex]{}[/tex] CO₂ + H₂O (l) → C₆H₁₂O₆ + O₂
Carbon dioxide [tex]{}[/tex] Water Glucose Oxygen
B The allusions recall specific locations and horrors of the Vietnam conflict.How many moles of H2O are produced when 12 moles of NH3 reacts with excess O2?
4 NH3 + 5 O2 → 4 NO + 6 H2O
Group of answer choices
18 moles H2O
12 moles H2O
6 moles H2O
9 moles H2O
Answer: 18 moles of [tex]H_2O[/tex] will be produced.
Explanation:
We are given:
Moles of ammonia = 12 moles
The given chemical equation follows:
[tex]4NH_3+5O_2\rightarrow 4NO+6H_2O[/tex]
By the stoichiometry of the reaction:
4 moles of ammonia produces 6 moles of water
So, 12 moles of ammonia will produce = [tex]\frac{6}{4}\times 12=18mol[/tex] of water
Hence, 18 moles of [tex]H_2O[/tex] will be produced.
What is the mass of 0.850 mole of SO2?
Answer:
[tex]1 \: mole \: of \: sulphurdioxide \: weighs \: 64 \: g \\ 0.850 \: moles \: will \: weigh \: (0.850 \times 64) \: g \\ = 544 \: g[/tex]
The mass of 0.85 mol of sulfur dioxide has been 54.4 grams.
Moles can be calculated as the ratio of the mass to the compound to the molecular mass. The moles can be expressed as:
Moles = [tex]\rm \dfrac{mass}{molecular\;mass}[/tex]
Mass = moles [tex]\times[/tex] molecular mass
The molecular mass of sulfur dioxide = Mass of sulfur + 2 [tex]\times[/tex] mass of oxygen
= 32 + 2 [tex]\times[/tex] 16
= 32 + 32
= 64 g/mol
The given moles of sulfur dioxide = 0.850 mol
The mass of sulfur dioxide = 0.850 [tex]\times[/tex] 64
The mass of sulfur dioxide = 54.4 grams.
The mass of 0.85 mol of sulfur dioxide has been 54.4 grams.
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EJEMPLOS DE SOLUCIONES QUÍMICAS EN LA NATURALEZA
ahí esta la respuesta espero que te sirva
How many moles are equal to 3.0x10^23 atoms of germanium? PLS ANSWER WITH WORK!
which two terms best describe the level of organization of life shown in this photo?
Answer:
there's no photo, I'm sorry
can someone explain the answer.
Answer:
A
Explanation:
Alkanes undergo substitution reaction with halogen molecules in the presence of light. This reaction occurs by free radical mechanism and the initiation step is the formation of the halogen radical.
The propagation steps involves the abstraction of a hydrogen from the alkane by the halogen radicals.
The termination steps involves the coupling of alky radicals.
Thus for the reaction of ethane and chlorine;
C2H6 + Cl2 -------> C2H5Cl + HCl
que tipos deagua oxigenada hay
Answer:
El agua oxigenada se encuentra en cuatro concentraciones diferentes expresadas “en tanto por ciento”: 8%, 30%, 35% y 50%. Sin embargo, hay quien prefiere hablar de “volúmenes” y no de “porcentajes”.
water is to ____as liquid is to soild
water is to gas as liquid is to solid
Which describes the forces in an unstable nucleus?
A. The electrostatic force is greater than the strong nuclear force.
B. The electrostatic force is greater than the weak nuclear force.
C. The weak nuclear force is greater than the strong nuclear force.
D. The strong nuclear force is greater than the electrostatic force.
Answer:
C. The weak nuclear force is greater than the strong nuclear force
Explain the method of preparation of alkyl halides using phosphorus halide
Answer:
The phosphorus first reacts with the bromine or iodine to give the phosphorus(III) halide. These then react with the alcohol to give the corresponding halogenoalkane, which can be distilled off
hope this helps bby<3
Use the information from the diagram to calculate the enthalpy of combustion for methane. (HELP ASAPPP!!)
A)
+752 kJ
B)
–921 kJ
C)
–604 kJ
D)
+604 kJ
Answer:
where is the diagram sisters
What factor makes it possible for animals with endoskeletons to grow larger than animals with exoskeletons?
A. Endoskeletons can be removed and replaced.
B. Endoskeletons are lighter than exoskeletons.
C. Endoskeletons are made of fluid-filled tubes.
D. Endoskeletons lack joints that can break down.
i need help
Given 7 moles of nitrogen gas, how many moles of ammonia can you make?
Explanation:
just use the molar ratios to figure it out. Notice, you have to balance the chemical equation.
An experiment was done to discover the right amount of water to use on a plant. Seeds were planted in three identical pots. The plants were given the following amounts of water each day for forty days. Pot 1, 50mL; Pot 2, 100mL, Pot 3, 150mL. The height of each plant was measured at the end of the experiment.
What is the independent variable in this experiment?
The amount of water is the independent variable in this experiment.
What is plant?Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses.
Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ability to produce normal amounts of chlorophyll or to photosynthesize, but still have flowers, fruits, and seeds. Plants are characterized by sexual reproduction and alternation of generations, although asexual reproduction is also common.
Learn more about plant
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If voume is held constant (the width remained the same in the simulation), what happens to P as T increases?
оа
It remains the same
Oь
It decreases
oc
It depends- it can either increase or decrease randomly
d
It increases
Answer:
If there is a decrease in the volume there is less space for molecules to move and therefore they collide more often, increasing the pressure. If there is an increase in the volume the molecules have more space to move, collisions happen less often and the pressure is decreased.
Explanation:
If there is a decrease in the volume there is less space for molecules to move and therefore they collide more often, increasing the pressure. If there is an increase in the volume the molecules have more space to move, collisions happen less often and the pressure is decreased.
