The negative impact of the hydroelectric dam is local drought and massive flood by dam breakage.
The hydroelectric dam is the local water storage body that is used to convert the energy of the water to electrical energy. The plants are a huge source of electricity.
What is the dam's negative impact?The dam is prepared in order to collect the local water in the bodies for the production of electricity. The collection of water required a larger force and pressure-bearing ability, thus dams are constructed with high-quality material.
The dams provide hydroelectricity, but the collection of water has been caused by the local drought conditions in the area. The dam breakage leads to massive floods as well.
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Place the following from smallest to largest
heumatom
carbon-14 atom
electron
proton
glucose molecule
Answer:
i think electron but not sure ans
Answer:
Range
Explanation:
glucose molecule
Proton
heumatom
electron
carbon-14 atom
Consider the reaction Cu + AgNO3 Ag + CUNO3 Which element is reduced? Which element is the oxidizing agent?
Answer:
Ag is both reduced and the oxidizing agent.
Explanation:
Ag is the answer for both
Cu + AgNO₃ → Ag + CuNO₃
Cu is a reducing agent, and AgNO3 is an oxidizing agent.
What is an oxidizing and a reducing agent?Oxidizing agent:In a chemical process, an oxidizing agent, also known as an oxidant, obtains electrons and becomes reduced. The oxidizing agent often referred to as the electron acceptor, is typically in one of its higher oxidation states since it will receive electrons and be reduced.
Reducing agent:In a chemical process, a reducing agent, also known as a reductant, loses electrons and is oxidized. The electron donor is a reducing substance, which is normally in one of its lower oxidation states. A reducing substance undergoes oxidation because of the redox reaction's electron loss.
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briefly describe a green chemistry success story
Scientists at NatureWorks of Minnetonka, Minnesota, makes food containers from a polymer called polylactic acid, made using microorganisms to convert cornstarch into a resin. The resulting polymer is used to replace rigid petroleum-based plastic used in yogurt containers and water bottles.
Chemistry Help!!!! Please Help
Answer:
try it your brain will become shaper more than you practice
What is the mass of 6. 02 x 1023 atoms of carbon-12?.
Answer:
One mole of oxygen atoms contains 6.02214179×1023 oxygen atoms. Also, one mole of nitrogen atoms contains 6.02214179×1023 nitrogen atoms. … So, each carbon-12 atom weighs about 1.99265×10−23g
How does scarcity impact society
Answer:
a market/society is dictated by supply and demand and scarify affects the supply of a product because if something is more scarce/rare then usually there is a higher demand and a higher price. This impacts society because it affects the price of things and how much people are willing to give for it
Explanation:
explain why the metal lid of a bottle or jar unscrews more easily after holding it in a boiling water for a few minutes
Answer:
lets take an glass jar for example
Explanation:
The metal lid and the glass jar absorb different amounts of thermal energy and therefore expand at different rates. Metals, being good conductors of heat, are able to absorb thermal energy from the hot water more easily. Glass, on the other hand, being a bad conductor of heat, cannot absorb the heat energy as well
A comparison often made between solids and
plasmas is based on their densities. How would
you describe the density of a plasma?
o low density
o high density
o varying density
O similar density to a solid
Answer:
the answer is A. low density
Explanation:
The density of a plasma can be described as : ( A ) Low density
DensityDensity is the mass per unit volume of a substance, it is used for comparison between substances because the mass and volume which are scalar quantities of substances are applied.
The density of plasmas are low when compared to solids because the volume occupied by a plasma of the same mass as a solid, is greater when compared to the volume occupied by a solid.
Hence we can conclude that The density of a plasma can be described as Low density.
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Matter cannot change liquid to solid true or false
Answer:
yes, I am pretty sure it can
A+compound+is+found+to+contain+39. 99+%+carbon,+6. 727+%+hydrogen,+and+53. 28+%+oxygen+by+mass. +what+is+the+empirical+formula+for+this+compound?.
Answer:
the emprircsl formula is: CH2O
Explanation:
All metals are good ________ of thermal energy and electricity.
Answer:
all metals are good conductor of thermal energy and electricity.
How many electrons are in a neutral carbon-14 atom?.
Answer:
There are six electrons in a carbon-14.
What are the functions of digestive system
Answer:
ingestion, propulsion, mechanical breakdown, chemical digestion, absorption, and elimination.
Explanation:
Answer: to release waste and process the needed materials used for the construction, maintenance, and healing of the body.
Explanation: In food there are certain things that our body needs such as protein, our body chemically and physically breaks down the nutrients our body needs. Our body also needs a way to get rid of what we don't need through the excretory system.
Hydraulic fracturing, or fracking, is the pumping of highly pressurized water with a mixture of sand and chemicals into boreholes to.
Hydraulic fracturing, or fracking, is the pumping of highly pressurized water with a mixture of sand and chemicals into boreholes to create cracks within rocks.
Hydraulic fracturingHydraulic fracturing (fracking, hydro fracking, and hydro fracturing) involves the fracturing of rock formations through the use of pressurized liquid.
Hydraulic fracturing is the pumping of highly pressurized water with a mixture of sand and chemicals into boreholes to create cracks within rocks .This provides a pathway for natural gas to escape out.
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If you had done the experiment hands-on and the environmental air pressure changed, how would your results have been affected?
Question 3 options:
There is not enough information to make a decision.
There would have been no effect, because air pressure changes would not be strong enough to change the lab results.
There would have been a change in the measurements of balloon volume because air pressure changes would have interfered with the results.
PLEASE HELP!!!
Boyle's law states the relationship between pressure and volume of a gas.
From Boyle's law, we know that volume and pressure of a given mass of gas are inversely proportional to each other. Hence, PV = k.
Now, in carrying out this experiment, the atmospheric pressure is assumed to be constant. If the atmospheric pressure changes during the experiment, here would have been a change in the measurements of balloon volume because air pressure changes would have interfered with the results.
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What is the volume of the air bubble when it reaches the surface? mL.
Answer:
Explanation:
The air pressure is the same as the pressure of the surrounding water, and the volume of the bubble can be determined by the volume formula of a sphere V=43πr3.
15 mL
(got it right on Edge)
What is the total number of atoms represented in the
formula CuSO4.5H,0?
Answer:
you have ten hydrogen atoms and five oxygen atoms in total
Explanation:
hope this helps
why did scientist accept the periodic table as a useful way to organize information about the elements
Answer:
Because the scientists believed that it was an organized and greatly informational table, about the elements and how they relate with each other, in a simplified way.
Note: This was a fast answer, so it may not be what you expected, but hope it helped in any way. Good luck! <3
According to Einstein, why does the photoelectric effect occur?The photoelectric effect is due to the release of electrons from atoms.The photoelectric effect changes with the emission of an atomic spectrum.The photoelectric effect is related to the number of electrons in the shells around a nucleus.The photoelectric effect has to do with the number of atoms in a material.
Answer:
Option A is the answer!
Explanation:
The photoelectric effect occur due to the release of electrons from atoms. Thus option A is correct.
What is photoelectric effect?The photoelectric effect is defined as a phenomenon in which electrically charged particles are released from or within a material when it absorb electromagnetic radiation.
It is also be defined as an emission of electrons when electromagnetic radiation hits the material.
It can be defined as a phenomena whereby light striking a metal surface causes electrons to be expelled from it.
The photoelectric effect is defined as a phenomena whereby electrons can be released from the surface of a metal when light shines on it.
Thus, the photoelectric effect occur due to the release of electrons from atoms. Thus option A is correct.
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6. A hot potato is sitting out on the counter. After 3 hours, you pick up the 5 points
potato and notice that it is no longer hot. Why is the potato not hot
anymore? *
O the cold room made the potato cold
O the potato is molded, and mold makes food cold
the heat from the potato went to the air
ОО
the potato is still hot
7. When your heating up soup on the stove, which heat transfer method is 5 points
Sno...
Yea
Answer:
the heat differs to the air as heat is energy and energy likes to travel
Apart from plants, what other group of organisms photosynthesises?
Answer:
Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis
How many atoms are in 3.6 moles of carbon c atoms
Answer:
There are 2.17×10²⁴ atoms in 3.6 moles of carbon atom
Explanation:
No. of atoms = Mole × NA
= 3.6 × 6.022 ×10²³
= 2.17×10²⁴ atoms
Which tool would a scientist use to measure reaction energy?
A) bond energy meter
B) reaction vessel
C) vacuum flask
D) calorimeter
Answer:
Calorimeter
Explanation:
Hi there ,
Your answer is calorimeter and it is a device for measuring the heat developed during a mechanical, electrical, or chemical reaction,
Calorimeter is the tool would a scientist use to measure reaction energy. Therefore, option D is correct.
What does a scientist use a calorimeter to determine?Calorimeter, a device used to measure the heat produced during a mechanical, electrical, or chemical reaction and to calculate the heat capacity of materials.
To calculate the amount of energy change, the calorimeter measures the mass of the liquid as well as the temperature change. Calorimetry is the process of measuring the amount of heat released or absorbed during a chemical reaction.
A calorimeter is a device that measures the amount of heat in a chemical or physical process. When an exothermic reaction occurs in solution in a calorimeter, for example, the heat produced by the reaction is absorbed by the solution, raising its temperature.
Thus, option D is correct.
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2C2H2(g) 5O2(g) → 4CO2(g) 2H2O(g) This is a balanced equation for the combustion of acetylene (C2H2). How many moles of oxygen(O2) are required to react completely with 1. 0 mole of acetylene?.
The moles of oxygen required to completely react with 1 moles of acetylene is 2.5 mol.
The balanced chemical equation for the reaction is given as:
[tex]\rm 2\;C_2H_2\;+\;5\;O_2\;\rightarrow\;4\;CO_2\;+\;2\;H_2O[/tex]
Computation for moles of Oxygen requiredThe stoichiometric coefficient in the balanced chemical equation gives the information for the moles of products and reactants in the reaction.
From the given balanced chemical equation, for reacting with 1 mole of acetylene, 5 moles of oxygen is required.
The moles of oxygen required to react with 1 mole of acetylene are:
[tex]\rm 2\;mol\;C_2H_2=5\;mol\;O_2\\\\1\;mol\;C_2H_2=\dfrac{5}{2}\;\times\;1\;mol\;O_2\\\\ 1\;mol\;C_2H_2=2.5\;mol\;O_2[/tex]
The moles of oxygen required to completely react with 1 moles of acetylene is 2.5 mol.
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In a _______ wave the matter in the medium moves back and forth at right angles to the direction
that the wave travels.
Transverse.
Longitudinal travels in the same direction as medium.
Before an experiment, you calculated that you should produce 55.7g of copper. When you measure your final product you only Made 32.6 g. What is your percent yield.
The percent yield would be 58.53 %
What is percent yield?It is the ratio of the amount of yield a reaction produced compared to the amount expected following the stoichiometric equation of the reaction.
Mathematically: percent yield = actual yield/theoretical yield x 100
In this case, actual yield = 32.6 g and theoretical yield = 55.7 g
Thus;
Percent yield = 32.6/55.7 x 100
= 58.53 %
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Consider chemical reactions between main group metals and non-metals. Based on known bonding patters, which of the following compounds are possible?
Answer:
You didn't list the compounds it gave you so i cant cross check them to see it they are ionic bonds( which is the chemical bonding is formed between metal and nonmetal)
if you reply with the compounds it list I will be happy to check for you
FORENSICS
Micah is a forensic scientist, and he suspects that an illegal drug found at a crime scene is actually a mixture of several substances. Which test should Micah use to help him identify the substances?
spectrophotometry
gas chromatography
microcrystalline
narcotic
plssss help meeeeeeee
All you need to do is to look at both sides of the equation and see who has the same element, state, coefficient, and charge and those will be your spectator ions.
In this question, the spectator ions would be [tex]Na^{+}[/tex] and [tex]Cl^{-}[/tex].
How many neutrons are in an atom of chlorine-36?
a
19
b
need more information
c
17
d
36
Answer:
a 19
Explanation:
Cl-36 has 19 neutrons
17 protons
And 17 electrons
Explanation:
a. 19 neutrons
hope this helps you
have a nice day
