Research the future of energy production. What improvements to (or new methods of) electrical energy production are scientists currently developing? How will they improve on present methods of energy production (what makes these new methods better than the old)? What are the cons of these improvements?
Answer:
Fossil fuels like coal, oil and natural gas supply 80 percent of the world’s energy to warm homes, charge devices and power transportation. They are also the primary human source of greenhouse gas emissions. Stanford scientists broadly agree that curtailing our use of fossil fuels would have significant benefits like improving health and reducing the number and severity of natural disasters, but it’s not yet clear what can replace them.
Explanation:
What is formed if two or more atoms join together?
A. Compound
B. Electronegativity
C. Nucleus
D. Element
HELP
Answer:
compound
Explanation:
compound = A substance consisting of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule.
An elephant takes a deep breath, releasing 9.50g of CO2. How many molecules CO2 is this?
Answer:
3 significant figures.
Explanation:
So, a mole is essentially a group of things. In this case, a mole of carbon dioxide will contain
6.022 ⋅ 10 [ by the 23rd power]
molecules of carbon dioxide. In other words, in order to have
1 molecule of carbon dioxide, you need to have 6.022 ⋅ 10 [by the 23rd power] molecules of carbon dioxide.
You know that 5.00 ⋅ 10 [ by the 2nd power] molecules of carbon dioxide are exhaled from the lungs when we breathe out. You can use Avogadro's constant as a conversion factor to help you figure out how many molecules are present.
What products are obtained by the electrolysis of CuSO4 solution using copper electrode ? Show with help of chemical reaction.
Answer: The products will be copper and oxygen.
Explanation: Copper electorde is an active electrode so it constantly takes part in the electrolysis. Cathode is a pure copper negative electrode and anode is a impure copper positive electrode. So the copper present in the solution, along with the copper present in the anode will come off and go to the cathode. As a result, cathode gains copper. And the remaining impurities settle down in the bottom.
In the anode, oxygen will be given off because according to the order of discharge, if SO4 is present then the ions will stay in the solution and oxygen will be released. So at the end, solution of SO4 and H2O will be remaining while copper and oxygen is extracted.
The half equations are-
Cathode: Cu2+ + 2e- = Cu
Anode: Cu + 2e- = Cu2+
Something you might not know: The solution in electrolysis turns blue when copper goes to the cathode. So copper electrodes are also used in electroplating.
How to write a chemical formula ?
Answer:
To write a chemical equation, the reactants should be written on the left, and the products should be written on the right and the coefficients should be written next to the symbols of entities to indicate the number of moles of a substance produced used in the chemical reaction.
what is the chemical formula of tetraphosphorus heptasulfide?
Answer: P4S7
Explanation:
How do covalent compounds differ from ionic compounds?
Answer:
1. Ionic bonds result from transfer of electrons, but covalent bonds are formed by sharing.
2. Ions are arranged in a three-dimensional array (like crystals). Covalently bonded substances exist as discrete molecular units.
3. Ionic compounds often dissociate into ions in solution, but covalently bonded molecules retain their molecular identity in solution.
Hope this helps :)
the boiling point of water at standard pressure is
Answer:
100 Celsius mostly because water boils at sea level
50 POINTS!!!! PLEASE HELP I AM BEGGING!!!!!!
3CH4 and C3H12 have the same number and kind of elements. How are they different?
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Mulchem with what would happen we have
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* Vedhere very little proteson against uyiri, Senal amage, ara pathogens the viruses are busers
35 Wd be able to be one to our body and remove carbon diote on our biker
45 Wd be able to gicky react to save ourselves from daneous stations
3 Wed he wable to crostate and deliver orygen ad carbon dioxide throughout our body
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Next >
Difference between Laboratory Thermometer and Clinical Thermometer.
Explanation:
Can you please mark me the brillantest?
Conversion of units of temperature
Answer:
1. -5
2. 88.7
3. -23.3333
4. 126.5
5. 69.8
6. 30.61111
7. 118.4
8. 275
9. 94.82
10. 44.6
Explanation:
Answer:
here you go
Explanation:
1.-5
2.88.7
3.23.333
4.126.5
5.69.8
6.30.6111
7.118.4
8.275
9.94.82
10.44.6
In the first half of the citric acid cycle, ____________ is oxidized, yielding a pair of electrons that reduce a molecule of NAD to NADH.
Answer:
isocitrate
Explanation:
In which one element replaces a similar element in a compound
In which one element replaces a similar element in a compound?
Answer:-A single-replacement reaction
Explanation:-A single-replacement reaction is a reaction in which one element of a compound is replaced by another.
Filtration of wastewater flowing over a surface of land with vegetation and water is a
an artificial wetland
a stabilization pond
a biodegradable treatment
an open aeration pond
Filtration of wastewater flowing over a surface of land with vegetation and
water is a biodegradable treatment.
Biodegradable substances are those which can be recycled for other uses
such as manure etc. The filtration of the waste water helps to remove
organic materials and pathogens present in it. The organic materials
removed can then be used for other purposes.
The pathogens are then destroyed to prevent the spread of diseases within
the area. The explanation makes biodegradable treatment most appropriate.
Read more on biodegradable treatment on https://brainly.com/question/1172912
oxygen is odorless and colorless physical or chemical
Answer:
(Physical or Chemical) properties of a substance can easily be observed. … (Physical or Chemical) properties can be used to identify substances. physical property. Oxygen is odorless and colorless.
Explanation:
What’s the correct answer to this problem?
What state is represented by the sign (s)
liquid
gas
solid
dissolved in water
solid.
liquid is (l)
gas is (g)
dissolved in water is (aq)
Which of the following methods of heat transfer causes the tectonic plates to move?
Conduction
Convection
Evaporation
Radiation
I am having the worst day ever, Someone please cheer me up. :( I'll mark you as brainiest. :(
Once I told a chemistry joke
I got no reaction.
What do you do with a sick chemistry teacher?
If you can't helium, and can't curium, you might as well barium.
I don't trust atoms,
I heard they make up everything
Hope I helped make ur day. :)
how molecular structure affects solubility?
Answer:
The molecular structure affects solubility mainly biased on its polarity or bonded ions.
Explanation:
Polar molecules will better interact with the water molecules and will dissolve easier. Nonpolar molecules can dissolve if they are small enough, however they don't interact well with the polar molecules. Bonded ions, such as NaCl split into a cation Na and an anion Cl which the positive charge on the Na will be attracted to the oxygen, and the negatively charged Cl will be attracted to the positive Hydrogen.
**Remember this rule, like dissolves like, meaning nonpolar dissolves nonpolar and polar dissolves polar.
I hope this helps!
¿Cómo pueden los padres pasar a sus
hijos rasgos como el color de ojos?
Answer:
Los padres transmiten rasgos o características, como el color de ojos y el tipo de sangre, a sus hijos a través de sus genes. Algunas condiciones de salud y enfermedades también pueden transmitirse genéticamente. A veces, en
which of these gaseous elements is least reactive hydrogen helium nitrogen or oxygen
Answer: Nobel gases
i dont know what the options were but i hope that helped
how much heat is released when 32g of water cools from 46°C and freezes
The amount of heat released when 32g of water cools from 46°C and freezes is 6182.4 J
Heat: This is a form of energy that brings about the sensation of warmth. The S.I unit of heat is Joules (J)
⇒ Formula:
Q = cm(t₂-t₁).................. Equation 1⇒ Where:
Q = amount of heat releasedc = specific heat capacity of waterm = mass of watert₁ = Initial temperaturet₂ = Final temperatureFrom the question,
⇒ Given:
m = 32 g = 0.032 kgt₁ = 46 °Ct₂ = 0 °C (Freezing point)c = constant = 4200 J/kg.°C⇒ Substitute these values into equation 1
Q = 0.032(4200)(0-46)Q = -6182.4 JNote: The negative sign tells that heat is released and as such can be ignored.
Hence, The amount of heat released is 6182.4 J
Learn more about heat here: https://brainly.com/question/9614649
Which chemical equation below shows a combination (or synthesis reaction?
A) 2KClO3 —> 2KCI+3O2
B) C+ O2 —> CO2
C) 2H2O —> 2H2 + O2
D) NaCl —> Na + Cl
Answer is C
A synthesis reaction looks like this:
A+ B → AB
what are three different facts about mass
plz tel will give brainlyest
Answer: all mass takes up space. everything has mass. Theres a unit of mass called a slug thats not the bug!
Explanation:
How many molecules are in 1.3 moles of water?
Answer:
7.8286e+23
Explanation:
Use Avogadro's number
which of the following atom could reside in the same group? Explain your answer
How much does the universe(galaxy) weigh?
Answer: Universe
Mass of ordinary matter
The mass of the observable universe is often quoted as 1050 tonnes or 1053 kg. In this context, mass refers to ordinary matter and includes the interstellar medium (ISM) and the intergalactic medium (IGM). However, it excludes dark matter and dark energy.
Density (of total energy): 9.9×10−27 kg/m3 ...
Mass (ordinary matter): 1.5×1053 kg
Contents: Ordinary (baryonic) matter (4.9%); D...
Volume: 3.566×1080 m3
Explanation: Galaxy
around 1.5 trillion solar masses
Their answer: The galaxy weighs around 1.5 trillion solar masses. This number helps put in perspective how very small we are. Take, for instance, where stars in the Milky Way fit in.
magine that you are a water molecule in a group of many water molecules. Write a letter to a friend telling them about your journey through the water cycle on Earth. You can begin your journey anywhere you’d like, but you must complete an entire cycle and end the journey where you began. Write your letter in complete sentences. Use each of the following terms correctly in your letter: • condensation • evaporation • precipitation • collection (HELP PLS ILL GIVE 54 points *all my points* AND GIVE BRAINLIEST HELP PLS)
Answer:
Explanation:
One day I was sitting on a leaf, in the early morning if a Tuesday, and I was just relaxing there. I then heard Bob( the water molecule next to me) say that he heard it was going to get pretty hot today. As the day went on I started to get pretty warm and I starting to evaporate and fly into the sky! It was really weird to see the world from up high. I stayed up there bouncing between clouds with Bob for a few hours, until the wind started to pick up and it got colder. I then started to shiver and began condensing with the other water molecules (and Bob). As it got colder we began to plummet to the earth really fast in the precipitate form of a water droplet. We hit the ground with a big ker-plop! I looked around me and we weren't the only ones. A bunch of other droplets had started to collect and form a puddle.
Hope this helps!
