Answer:
Sulphur
Explanation
Rhombic and monoclinic sulphur are its allotropic forms
Why is geothermal energy not used as
frequently as other renewable energy source?
Answer:
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.
Explanation:
Geothermal energy is underutilized and underutilized in comparison to other renewable energy sources such as solar and wind energy. This is due to the difficulty of extracting energy from the subsoil, as complications can arise that affect both the environment and the cost of energy.
What is geothermal energy ?Geothermal energy is the thermal energy in the Earth's crust that results from the planet's formation and radioactive decay of materials in currently unknown but potentially roughly equal proportions.
Geothermal energy is not always a renewable energy source because the extraction of heat from the earth's crust over time can cause depletion, causing some geothermal wells to cool and run out of water.
Geothermal energy can be found at depths accessible by drilling in these areas. It is simply too deep to reach in other parts of the world. The second reason is that it has high capital expenses. The costs of drilling and power plants are somewhat high.
Thus, Geothermal energy is underutilized and underutilized in comparison to other renewable energy sources such as solar and wind energy.
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what type of molecule are these and what is the strongest IMFs in between?
Answer:
CH2O is formaldehyde a covalent compound and its intermolecular forces are week
KCl is an ionic compound formed by electrostatic force of attraction between positive and negative charge. Ionic compounds also exists in three dimensional crystal lattic that is why intermolecular forces in KCl is stronger.
Moreover melting point of KCl is higher than CH2O
Explanation:
PLEASE HELP I WILL GIVE YOU BRAINLIEST
(the linked photo)!!! thank you
Answer:
1. nitrous oxide
2. copper sulfide
3. cl2o7
4. MgBr2
Explanation:
hope it helps
Suppose you wanted to dissolve 40.0 g NaOH in enough H2O to make 6.00 dm3 of solution
Molarity of solution = 1.6 M
Further explanationGiven
40 g NaOH
6 L solution
Required
Steps to solve the problem of molarity
Solution
No additional information about the question.
If you want to make the solution above, then we just need to put the existing NaOH (40 g) into 6 L of water, then do the stirring (in a warm temperature above the hot plate will speed up the NaOH dissolving process)
But if you want to know the molarity of a solution, then
1. we calculate the moles of NaOH[tex]\tt mol=\dfrac{mass}{MW}[/tex]
MW(molecular weight) of NaOH=
Ar Na+ Ar O + Ar H
23 + 16 + 1 = 40 g/mol
so mol NaOH :
[tex]\tt mol=\dfrac{40~g}{40~g/mol}=1~mol[/tex]
2. Molarity(M)[tex]\tt M=\dfrac{n}{V}\\\\M=\dfrac{1}{6}\\\\M=0.16[/tex]
Chemistry conversion:
Convert 3.0099 dumps to wigs.
6375.23 dumps = 1 wig
Round your answer to 5 sig figs.
dumps and wigs are made up units for this question.
Answer:
0.00047212
Explanation:
Given parameters:
Quantity of dumps = 3.0099 dumps
Unknown:
Amount of wigs in this dumps = ?
Solution:
Since it is given that;
6375.23 dumps = 1 wig
To find 3.0099dumps;
3.0099 dumps = x wigs
6375.23x = 3.0099
x = [tex]\frac{3.0099}{6375.23}[/tex] = 0.00047212 wig
Phosgene is a highly toxic gas made up of carbon, oxygen, and chlorine atoms. Its density at 1.05 atm and 258C is 4.24 g/L. (a) What is the molar mass of phosgene
Answer:
Molar mass = 99 g/mol
Explanation:
Phosgene contains carbon, oxygen and chlorine atoms. Its molecular formular is; COCl2
The molar mass is given as the sum off the individual atomic mass of the elements in the compound.
Molar mass = C + O + 2Cl
Molar mass = 12 + 16 + 2(35.5)
Molar mass = 99 g/mol
Hydrogen bromide is a chemical compound. It’s formed from atoms of hydrogen and bromide, two
A
electrons.
B
elements.
C
neutrons.
D
nuclei.
Answer: The correct option is B. elements.
Explanation:
A chemical compound is defined as the specie which is formed by the combination of two or more elements. For example: Water, carbon dioxide, etc..
Elements is defined as the chemical specie which consists of only one type of atom. For example: Hydrogen, Oxygen, etc..
Now, when hydrogen element and bromine element combines, it leads to the formation of a heteronuclear chemical compound known as hydrogen bromide having chemical formula HBr.
Hence, the correct option is B. elements.
Hydrogen and bromine are two elements that form hydrogen bromide (HBr).
COMPOUND:
A compound is a chemical substance made up of chemical combination of two or more elements. According to this question, Hydrogen bromide is a chemical compound formed from atoms of hydrogen (H) and bromine (Br). These two atoms that make up hydrogen bromide are that of elements. Therefore, it can be said that hydrogen and bromine are two elements that form hydrogen bromide (HBr).Learn more at: https://brainly.com/question/13516179?referrer=searchResults
PLEASE HELP ASAPPPP I WILL VENMO YOU MONEY IF YOU DO THIS CORRECTLY Write the name for the following compounds.
1. N2O (Covalent)
2. Cu2S (Ionic)
Write the Chemical Formula for the following compounds.
3. Dichlorine heptoxide (Covalent)
4. Magnesium bromide (lonic)
Answer:
Dichlorine heptoxide=Cl₂O₇
magnesium bromide=MgBr2
Explanation:
When salt water is heated leaving behind solid salt, this is separating a mixture by what method ?
How many grams of H2O are in 34.53 moles of H2O??
Answer:
m=621.54g
Explanation:
number of moles= mass of H2O/molar mass of H2O
n=m/mm
make mass the subject of the formula
m=n*mm
find molar mass of water
H2O=1(16)+2(1)
mm= 18.0g/mol. n=34.53mol
hence, m=34.53mol*18.0g/mol
m=621.54g
Which of the following is a true statement? The narrow bay formed by the movement of glaciers are fjords. Coral reefs and sandbars form lagoons. Glaciers affect the size of lagoons. Glacier movements can produce distributaries.
Answer:
A the first one
Explanation:
Answer:
The Answer is fjords
Explanation:
Hope It Helps! Make Me Braninest
Plsss name this compound
Explanation:
It looks like 2,2,4-trimethylpentane.
Longest alkane chain contains 5 carbons. => -pentane
3 methyl groups on the 2nd, 2nd and 4th carbons.
what is the empirical formula for a compound that is 40% S, and 59.9% O?
Answer:
O3S
Sulfur Trioxide
Explanation:
How does knowing the reactants and products
help you classify a chemical reaction? Write a
short paragraph explaining.
Answer:
Here's the Sample Response: The reactants and products determine the type of chemical reaction. If there are more products than reactants, then it is a decomposition reaction. If there are more reactants than products, it is a synthesis reaction. If oxygen is a part of the reactant, it is a combustion reaction. If one ion replaces another, it is a single replacement reaction. If there are two compounds in a reactant where cations switch, it is a double replacement reaction.
Explanation:
Draw both the chair and boat conformation of 1,4-dimethylcyclohexane with the methyl groups as cis and trans for both conformations. Label your molecules for cis and trans. Tell which is the highest in energy.
Answer:
Boat conformation cis 1,4-dimethyl cyclohexane has the highest energy.
Explanation:
From the conformations, the boat conformation cis 1,4-dimethyl cyclohexane is least stable due to the fact that two methyl groups are located in opposite direction to each other, this leads to the production of a higher strain. Similarly, Chair conformations appear more stable than boat conformation. Hence, energy is inversely proportional to stability. As a result of the aforementioned, boat conformation cis 1,4-dimethyl cyclohexane has the highest energy.
Why can you see solids and liquids, but not most gases?
Why can gases and liquids be paired but not solids?
The atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds. A gas will fill any container, but if the container is not sealed, the gas will escape. Gas can be compressed much more easily than a liquid or solid.
4. On the island of Hawaii, Keanu notices that the sand on the beach is black, the same color as the
rock formations on the island. Keanu realizes the sand used to be part of the rock formations. How
did material from the rock formations turn into sand?
Answer:
The ricks were degraded over time by wind and water and were crushed down into tiny, smaller rocks, which is sand.
Explanation:
This is my first answer sorry im not that smart
Adding oil to a table would ___________ the friction when sliding a book across it.
Increase or decrease
Answer:
Increase
Explanation:
Hope it helps you
Answer:
Decrease
Explanation:
If the oil you're referring to is just some normal oil, it'll lessen the friction and cause it to side more smoothly
what does (I) means in a chemical equation
Answer:
the l sign means the substance in the chemical equation is a liquid. (hope this helped : D )
How many moles in 206.91 g Na
Answer:
The answer is 9.000090040048176
Describe the process of freezing ice cream in terms of heat flow.
Answer:
Freezing the mix is one of the most important operations in making ice cream, for upon it depend the quality, palatability, and yield of the finished product. Typically, freezing of ice cream is accomplished in two steps: (1) dynamic freezing, where the mix is frozen quickly while being agitated to incorporate air and to limit the size of ice crystals formed; and (2) static freezing, where the partially frozen product is hardened without agitation in a special low-temperature environment designed to remove heat rapidly. Although these steps primarily encompass freezing, or the formation of ice crystals, there are several other important processes that take place during this time that significantly impact the quality of ice cream. Both the dispersion of air bubbles and rearrangement of fat globules occur during the freezing steps.
Explanation:
Which chemical equations show a precipitation reaction?
Select all the correct answers.
2NaNO3(aq) + NiCl2(aq) → 2NaCl(aq) + Ni(NO3)2(aq)
MgSO4(aq) + CaCl2(aq) → MgCl2(aq) + CaSO4(s)
AlBr3(aq) + 3LiI(aq) → AlI3(aq) + 3LiBr(aq)
FeCl2(aq) + Na2CO3(aq) → FeCO3(s) + 2NaCl(aq)
2AgNO3(aq) + Na2S(aq) → Ag2S(s) + 2NaNO3(aq)
The equations that show a precipitation reaction would be [tex]MgSO_4(aq) + CaCl_2(aq) --- > MgCl_2(aq) + CaSO_4(s)[/tex], [tex]FeCl_2(aq) + Na_2CO_3(aq) --- > FeCO_3(s) + 2NaCl(aq)[/tex], and [tex]2AgNO_3(aq) + Na_2S(aq) --- > Ag_2S(s) + 2NaNO_3(aq)[/tex]
What is a precipitation reaction?It is a reaction in which two soluble salts react in aqueous solutions to form one soluble and one insoluble salt.
Thus, all the equations with an insoluble salt as one of the products will qualify as precipitation reactions. The insoluble is designated as (s).
Hence, the following are precipitation reactions:
[tex]MgSO_4(aq) + CaCl_2(aq) --- > MgCl_2(aq) + CaSO_4(s)[/tex][tex]2AgNO_3(aq) + Na_2S(aq) --- > Ag_2S(s) + 2NaNO_3(aq)[/tex][tex]FeCl_2(aq) + Na_2CO_3(aq) --- > FeCO_3(s) + 2NaCl(aq)[/tex]More on precipitation reactions can be found here: https://brainly.com/question/24158764
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how does the container with the plastic wrap stimulate carbon dioxide in the atmosphere?
Answer:
The Earth’s greenhouse effect is a natural consequence of the chemical makeup of its atmosphere. If it
were not for the greenhouse effect, life as we know it could not exist on Earth: it would be too cold. Our
atmosphere is made mostly of nitrogen and oxygen, but also contains several other gases. These include
carbon dioxide, methane, nitrous oxide, water vapor and ozone, which are known as greenhouse gases.
Greenhouse gases are released naturally through geologic processes and the metabolic activity of living
things. However, there is an ongoing debate over human effects on Earth’s global climate. Human industrial activity on the planet has increased the quantities of greenhouse gases through agriculture, manufacturing, power generation, and engines used for transportation. Key questions include: Is the average temperature of Earth increasing? Does the presence of human beings contribute to global warming? If the temperature of Earth does become warmer, how will it affect us?
Explanation:
What are 3 characteristics of all invertebrates
Answer:
None have backbones
No cell walls
Multicellular
Includes radial or bilateral body symmetry.
Explanation:
What is Darwin's name for species that do not appear to have changed for millions of years?
Since, the options have not been given the question is incomplete.
What is Darwin's name for species that do not appear to have changed for millions of years?
a.
Dinosaurs
b.
Living fossils
c.
Old souls
d.
Ancient moderns
Answer: b. Living fossil
Explanation:
In 1859 Charles Darwin proposed the term living fossil, that means a species or group of species that had not changed in terms of evolutionary context thus can be useful in tracing the extinct or previously existing forms of life. The examples of the living fossils are horseshoe crabs, ginkgo (Conifers) and tuatara. These group of animals were existed unchanged in the Ordovician, Permian, and Triassic periods respectively with few surviving species.
Answer:
the answer is living fossils so it would be b
Explanation:
how do i know i took the test
2.92 x 10^-15/
(5.6 x 10^-3) (4.16 x 10^9)
Answer:
3645.46
Explanation:
calculated
the presidential inauguration is free to watch with or without paying ror traditional tv service. Why is this important?
Answer:
so that people would be able to witness the inauguration of a president, since a president is an important part of a country.
Explanation:
Will the composition of water molecules vary depending on their source?
Answer:
It does not matter where the sample of water came from or how it was prepared. Its composition, like that of every other compound, is fixed.
Kichi made a table to identify where she might find acids and bases in her house based on their common uses. Substance ammonium hydroxide sulfuric acid citric acid potassium hydroxide Location cleaning cabinet cosmetics bag refrigerator flashlight What error did Kichi make?
Ammonium hydroxide would be found in the pantry because it is found in vinegar.
Sulfuric acid would be found in the garage because it is used in car batteries,
Citric acid would be found in the garage because it is used to clean rust from metal.
Potassium hydroxide would be found in the kitchen cabinet because it is used in oven cleaner.
Answer:
Kichi made the an error in the 2nd row which is Sulfuric acid.
Sulfuric acid would be found in the garage because it is used in car batteries
Explanation:
Ammonium hydroxide (NH4OH) is used in household cleaners.
Sulfuric acid (H2SO4) is used in industrial chemicals and car batteries.
Citric acid (H3C6H5O7) is in lemons, limes, and oranges.
Potassium hydroxide is used in batteries.
Kichi made a mistake while locating sulfuric acid which is an acid and is used car batteries ,hence it should be found in garage rather than in cosmetics bag.
What is an acid?Acids are defined as substances which on dissociation yield H+ ions , and these substances are sour in taste. Compounds HCl, H₂SO₄ and HNO₃ are acids as they yield H+ ions on dissociation.
According to the number of H+ ions which are generated on dissociation acids are classified as mono-protic , di-protic ,tri-protic and polyprotic acids depending on the number of protons which are liberated on dissociation.
Acids are widely used in industries for production of fertilizers, detergents batteries and dyes.They are used in chemical industries for production of chemical compounds like salts which are produced by neutralization reactions.
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which is a characteristics of all ions
Answer:
All ions must a overall charge
Explanation:
Answer:
i belive its B
Explanation: