Answers
Answer:
chemical weathering
physical weathering
biological weathering
Explanation:
biological weathering it when the plants grow the root move into the rocks to cause break down
Related Questions
Which of these statements describes a physical property of hydrogen? Group of answer choices it is found in acids. it is less dense than oxygen gas. it reacts with oxygen to form water. it is highly flammable.
Answers
Answer:
it is less dense than oxygen gas.
Explanation:
Hydrogen is the simplest chemical element that exists. The symbol for the chemical element Hydrogen is "H" and it is a colourless, tasteless, odorless, and highly flammable gas.
Hydrogen is a chemical element found in group (1) of the periodic table and as such it has one (1) electrons in its outermost shell. Therefore, Hydrogen has an atomic number of one (1) and a single valence electrons because it has only one proton and one electron in its nucleus.
In Chemistry, the properties of a chemical element that can be observed and measured without changing its chemical nature is known as a physical property. It includes density, color, freezing point, opacity, smell, melting point, viscosity, etc.
Hence, the statement which describes a physical property of hydrogen is that it is less dense (density) than oxygen gas.
What is a sustainable consumption problem
Answers
Explanation:
Sustainable consumption refers to the proper use of good and services to meet basic needs and to avail better quality of life. Also, it minimizes the uses of natural resources, toxic materials, and emissions of waste and pollutants over the life cycle.
Convert 75k to oC
(I’ll mark you as brainlister)
Answers
Answer:
-198.15
Explanation:
sorry if wrong form
Which is the correct number of moles of nitrogen monoxide that is produced from 13.2 moles of oxygen gas in the presence of excess ammonia (NH3)?
Answers
Answer:
10.56 moles of NO will be produced
Explanation:
The balanced reaction of ammonia, NH₃ with oxygen, O₂ is:
4NH₃ + 5O₂ → 4NO + 6H₂O
Where 5 moles of oxygen react with an excess of ammonia to produce 4 moles of nitrogen monoxude.
If 13.2 moles of O₂ react:
13.2 mol O₂ * (4 mol NO / 5 mol O₂) =
10.56 moles of NO will be producedIf an electron has an acceleration of 2.33 × 102 m/sec2, what is this value in units of m/min2?
Answers
Answer:
The electron has an acceleration of 838800 [tex]\frac{m}{min^{2} }[/tex]
Explanation:
An electron has an acceleration of 2.33*10² [tex]\frac{m}{sec^{2} }[/tex]
To be able to express in units [tex]\frac{m}{min^{2} }[/tex], you must carry out the conversion taking into account that 1 [tex]\frac{m}{sec^{2} }[/tex]= 3600 [tex]\frac{m}{min^{2} }[/tex]. Then you can apply the following rule of three: if 1 [tex]\frac{m}{sec^{2} }[/tex] equals 3600 [tex]\frac{m}{min^{2} }[/tex], 2.33 * 10² [tex]\frac{m}{sec^{2} }[/tex] equals how much [tex]\frac{m}{min^{2} }[/tex]?
[tex]\frac{m}{min^{2} }=\frac{2.33*10^{2} \frac{m}{sec^{2} }*3600\frac{m}{min^{2} }}{1\frac{m}{sec^{2} }}[/tex]
[tex]\frac{m}{min^{2} }=838800[/tex]
The electron has an acceleration of 838800 [tex]\frac{m}{min^{2} }[/tex]
18.
react to cause chemical reactions
Protons
Neutrons
Electrons
Answers
Which statement below accurately describes the atoms of a specific element?An antimony, Sb, atom contains 122 protons inside the nucleus and 51 neutrons outside the nucleus.A manganese, Mn, atom contains 55 electrons outside the nucleus and 25 neutrons inside the nucleus.A chlorine, Cl, atom contains 35 electrons and 27 protons inside the nucleus.An arsenic, As, atom contains 33 protons inside the nucleus and 33 electrons outside the nucleus.
Answers
Answer: An arsenic, As, atom contains 33 protons inside the nucleus and 33 electrons outside the nucleus.
Explanation:
The protons are positively charged, electrons are negatively charged and neutrons has no charge (neutral). The protons and neutrons are present inside the nucleus and the electrons are located outside the nucleus.
Antimony (Sb) has an atomic number of 51 and thus contains 51 electrons and 51 protons. It has a mass number of 121 and thus conatins 70 neutrons.
Manganese (Mn) has an atomic number of 25 and thus contains 25 electrons and 25 protons.
Chlorine (Cl) has an atomic number of 17 and thus contains 17 electrons and 17 protons.
Arsenic (As) has an atomic number of 33 and thus contains 33 electrons and 33 protons.
5. Para la siguiente reacción: KClO3 (s) KCl(s) + O2
Si se descomponen 500 gramos de una muestra impura de clorato de potasio y se recogen 100 litros de O2 medidos bajo condiciones normales de presión y temperatura. Determine la pureza de la muestra.
Answers
Answer:
72.95%
Explanation:
Para resolver esta pregunta, debemos hallar las moles tóricas que se producirían en la reacción asumiendo que los 500g son únicamente de clorato de potasio haciendo uso de la reacción balanceada:
2KClO₃(s) → 2KCl(s) + 3O₂(g)
Donde dos moles de clorato de potasio producen tres moles de oxígeno.
Después de hallar las moles teóricas de oxígeno debemos hallar las moles producidas usando PV = nRT. La pureza SERÁ:
Moles producidas / moles Teóricas * 100
Moles clorato -Masa molar: 122.55g/mol-:
500g KClO₃ * (1mol / 122.55g) = 4.08 moles KClO₃
Moles O₂ teóricas:
4.08 moles KClO₃ * (3 moles O₂ / 2 moles KClO₃) = 6.12 moles
Moles producidas:
PV / RT = n
Donde P = 1atm a STP
V es volumen = 100L
R es constante de los gases = 0.082atmL/molK
T =273.15K a STP
Reemplazando:
1atm*100L / 0.082atmL/molK*273.15K = 4.46 moles
La pureza de la muestra es:
4.46 moles / 6.12 moles * 100 = 72.95%
Work out the empirical formula of a compound that contains 35% of nitrogen , 5% of hydrogen and 60% of oxygen.
Answers
Answer:
[tex]H_5N_5O_6[/tex]
Explanation:
Hello there!
In this case, for the determination of empirical formulas, it is firstly necessary to assume the given percentages of the constituent atoms as the masses so we can compute their moles in the formula:
[tex]n_N=\frac{35gN}{14.01g/mol} =2.5molN\\\\n_H=\frac{5g}{1.01 g/mol}=5molH\\\\n_O=\frac{60g}{16 g/mol} =3molO[/tex]
Thus, we need to divide the resulting moles, by the fewest ones (those of nitrogen) in order to determine the coefficients in the formula:
[tex]N:\frac{2.5}{2.5}=1\\\\H:\frac{5}{2.5}=2\\\\O:\frac{3}{2.5} =1.2[/tex]
However, we need to turn all these numbers, whole numbers, so we multiply by 5 to get:
[tex]H_5N_5O_6[/tex]
Best regards!
Calculate the pH during the titration of 20.00 mL of 0.1000 M HNO2(aq) with 0.1000 M KOH(aq) after 13.27 mL of the base have been added. Ka of nitrous acid = 7.1 x 10-4.
Answers
Answer:
pH = 2.462.
Explanation:
Hello there!
In this case, according to the reaction between nitrous acid and potassium hydroxide:
[tex]HNO_2+KOH\rightarrow KNO_2+H_2O[/tex]
It is possible to compute the moles of each reactant given their concentrations and volumes:
[tex]n_{HNO_2}=0.02000L*0.1000mol/L=2.000x10^{-3}mol\\\\n_{KOH}=0.1000mol/L*0.01327L=1.327x10^{-3}mol[/tex]
Thus, the resulting moles of nitrous acid after the reaction are:
[tex]n_{HNO_2}=2.000x10^{-3}mol-1.327x10^{-3}mol=6.73x10^{-4}mol[/tex]
So the resulting concentration considering the final volume (20.00mL+13.27mL) is:
[tex][HNO_2]=\frac{6.73x10^{-4}mol}{0.01327L+0.02000L} =0.02023M[/tex]
In such a way, we can write the ionization of this weak acid to obtain:
[tex]HNO_2+H_2O\rightleftharpoons NO_2^-+H_3O^+[/tex]
So we can set up its equilibrium expression to obtain x as the concentration of H3O+:
[tex]Ka=\frac{[NO_2^-][H_3O^+]}{[HNO_2]}\\\\7.1x10^{-4}=\frac{x^2}{0.02023M-x}[/tex]
Next, by solving for the two roots of x, we get:
[tex]x_1=-0.004161M\\\\x_2=0.003451M[/tex]
Whereas the correct value is 0.003451 M. Finally, we compute the resulting pH:
[tex]pH=-log(0.003451)\\\\pH=2.462[/tex]
Best regards!
__Is when water changes from a solid to a liquid
Answers
andnfndlzns d
When water changes from a solid to a liquid it is called melting.
Solid ice melts and forms into a liquid: water.
If this incorrect, please, don't refrain to tell me. Thank you.
3) Explain why elements in the same group
similar properties
Answers
Answer:
The elements of the same group have the same number of valence electrons, that is why they have similar properties
Using the figure, angels p and w are example of
Answer :)
Answers
Answer:
D
Explanation:
we just did this in class last week haha i know my math :)
A trait in which one allele for a gene contributes and the phenotype is an intermediate between the dominante
and recessive is what type of trait?
Answers
which part of a food chain absorbs the Sun's light and heat
Answers
The plants are the part that absorb the Sun's light and heat.
The part of a food chain that absorbs the sun's light and heat is producers that are plants.
What is a food chain?A food chain is the chain that shows the transfer of energy from one part to another.
The bottom of the food chain is the producers that make their own food, then the consumers and the decomposers.
Thus, the part of a food chain that absorbs the sun's light and heat is producers that are plants.
Learn more about food chain
https://brainly.com/question/16065961
#SPJ2
Help ASAP If you know what to do comment if u don’t I’ll report you ! Points added
Answers
Proton:
Positive
Found in Nucleus
Mass of 1 AMU
Neutron:
Neutral
Found in Nucleus
Mass of 1 AMU
Electron:
Negative
Found in orbitals
Mass of 0 AMU
What would happen to Earth's temperature if the energy absorbed from the sun (solar radiation) was less than the emitted (thermal) energy leaving the Earth?
Answers
Answer:
The Earth would become cooler until it probably attains a new equilibrium between absorbed solar energy and emitted solar energy.
Explanation:
The earth's energy balance refers to the balance between the energy absorbed from the sun (solar radiation) and the emitted (thermal) energy leaving the Earth. This balance ensures that the earth's surface temperature remains fairly constant.
When energy from the sun reaches the earth, it is absorbed and used by various features of the earth which uses it for their energy needs. Eventually, any excess radiant energy is sent back or emitted from the earth back into space such that the balance between absorbed and emitted energy is maintained.
However, if there is an imbalance whereby more energy is emitted than is absorbed, this would result in the earth losing more heat than it receives. This would result in the earth becoming more significantly colder until it probably attains a new equilibrium between absorbed solar energy and emitted solar energy.
PLEASE HELP ASAP!!!!!!????
Answers
Answer:
The third one!
What are the three major categories used to classify elements?
a Solids, liquids, gases
b Protons, neutrons, electrons
c Groups, periods, states
d Metals. non-metals, metalloids
Answers
Answer:
i think option no. " D " = " metals, non-metals, metalloids " is the correct answer.
hope this answer will help u.
have a great time
Hope this helped you!
Classify the following as a chemical or physical property: Iron melts at 1535 degrees C. chemical or psychical?
Answers
Answer:
Physical property
Explanation:
Change in state is a physical property of matter.
HELP DUE IN 7 minutes TwT
Which product forms from the synthesis reaction between sodium (Na) and
sulfur (S)?
O A. Nasz
B. Nas
C. Na2S
O D. Na2S2
Answers
Answer:
Answer is C
Explanation:
the valency of sulphur is 2 ans sodium is 1
by crossing it forms NA2S
1 and 2 answer choice help please?
Answers
Sorry if it’s not correct
Answer:
I think its b be ause it looks like a better answer and it has some detail to it
Identifying Cell Structures
Which structures are found in plant colls, but not in animal cells? Check all that apply
)
coll wall
coll membrane
chloroplasts
O lysosomes
ribosomes
vacuoles
Answers
Answer:
cell wall and chloroplasts
Explanation:
Present in a state where it molecules are far apart during a change of state it's molecules slow down which change of state has most likely taken place from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma
Answers
Answer:
The change of state that has occurred is from a gas to a liquid
Note: The question is incomplete. The complete question is given blow.
H₂O is initially present in a state where its molecules are far apart. During a change of state, its molecules slow down. Which change of state has most likely taken place?
from a gas to a liquid
from a liquid to a gas
from a solid to a liquid
from a gas to a plasma
Explanation:
Water can exists in three states: as gaseous water vapor, as liquid water, and as solid ice. Each of these states of water can be interconverted from one to another by the addition or removal of heat in a process known as change of state.
Liquid water can be converted to solid ice by the removal of heat, while solid ice ice can be converted to liquid water by the addition of heat. Also, liquid water can be converted to water vapor by the addition of heat, while water vapor can be converted to liquid water by the removal of heat.
Of the three states of water, the one in which the molecules are farthest apart is in the gaseous state. The molecules have high kinetic energy and move randomly while colliding with one another. When a heat is removed from these highly energetic molecules, the molecules slow down and lose some of their kinetic energy and a change of occurs from gaseous to liquid state.
Therefore, the change of state that occurred as described, is from gas to liquid.
This unit discusses in detail the role of catalysts to lower the activation energy of reactions. The term catalyst appears in nonscientific discussions to refer to something that provokes or speeds significant change or action. Consider this example from the 2006 Associated Press article "Chernobyl cover-up a catalyst for glasnost":
"For the Soviet Union, Chernobyl was a catalyst that forced the government into an unprecedented show of openness that paved the way for reforms leading to the Soviet collapse"
Discuss how this scientific term has made its way into common usage. Does the term catalyst carry the same meaning in regular usage? How is it used differently in a scientific context compared to a nonscientific contexte
Answers
Answer:
It can be brought into regular conversation easily I feel it means to "provoke" or "speeds significant change or action" I can see someone saying that in a conversation, "chlorine acts as a catalyst promoting the breakdown of ozone".
I would say it would take the same meaning depending on how you say it and when and what the context of what you're saying it in.
For scientists, it means to change quickly. For someone who says it in a conversation may be saying to stop provoking someone.
Explanation:
most of the earth's landmasses is covered by a mixture of bits of rock and bit of once~living part of plants or animal. this material is called
and its not fossil
Answers
how many molecules are in 45.0 g of water
Answers
Given mass = 45g
Molar mass of H2O = 2+16 = 18g
Moles = Given mass/Molar mass
= 45/18 = 2.5moles
No of molecule in 1 mole = 6.022*10²³
No of molecue in 2.5 mole = 2.5*6.022*10²³
= 1.5055*10²³
in what two ways do minerals form
Answers
Answer:
Minerals can form in three primary ways being precipitation, crystallization from a magma and solid- state transformation by chemical reactions (metamorphism). Mineral Precipitation is when a mineral is formed by crystallization from a solution. Examples include quartz, halite (table salt), calcite, and gypsum.
Answer:
When magma cools slowly, deep below the surface, it has time to form large crystals in regular patterns. The second way that minerals form is through solutions. (A solution is when one substance is dissolved uniformly in a liquid.) When elements and compounds leave the solution, they can crystalize.
During photosynthesis, plants change light energy into:
chemical energy
solar energy
mechanical energy
electrical energy
i will mark brainlest
Answers
Answer:
chemical energy
Explanation:
just put that
Answer:
chemical energy
Explanation:
it is the light dependent reaction
Pleseee help me pretty please ✨
Answers
Answer:
6 N.
Every thing has equal and opposite reaction.
Answer:
The answer is C I believe, I do not know for sure but I think that is the answer..
I'm sorry if I'm wrong.
Explanation: