Answers
Answer:
step 2
Explanation:
ofcourse rocks dont melt
maybe lol
Related Questions
ANSWER THESE 3 QUESTION AND I WILL GIVE OUT THE BRAINLIEST
1. what is a positive acceleration
2. what is a zero acceleration
3. what is a negative acceleration
Answers
Answer:
A positive acceleration means and increase
A negative acceleration is a decrease
a zero acceleration is a constant movement so its not increasing or decreasing just constant
Explanation:
What is a positive acceleration ?
[tex] \sf \blue{Answer}[/tex]If the velocity of an object increases with time, its acceleration is positive.
[tex] \sf \pink{Question}[/tex]What is a zero acceleration ?
[tex] \sf \blue{Answer}[/tex]Zero acceleration is an acceleration, just with zero magnitude. Motion with constant velocity is just a special case of motion with uniform acceleration.
[tex] \sf \pink{Question}[/tex]What is a negative acceleration ?
[tex] \sf \blue{Answer}[/tex]A negative acceleration means you will subtract from the current value of the velocity, and a positive acceleration means you will add to the current value of the velocity. ... And if the acceleration points in the opposite direction of the velocity, the object will be slowing down.
How many moles are there in 100g of helium
Answers
Explanation:
so for this one u need to remember this equation and use it to find out moles= mass /mr . Mr of helium is 4
so moles= mass /mr
=100/4
=25 moles
hope this make sense:)
Hydrogen gas reacts with oxygen gas to form water. At STP, how many liters of hydrogen gas react with 32.4 liter of oxygen gas? (H2 + O2 -> H2O)
Answers
Answer:
I think its 1.2L? i may be wrong
Explanation:
Recall old Avogadro's hypothesis...........
Equal volumes of gases contain AN EQUAL NUMBER of PARTICLES
And thus if there are
2.4
⋅
L
of dihydrogen, stoichiometric equivalence requires
1.2
⋅
L
of dioxygen. How many litres of water g
If an atom has 8 electrons and 8 protons and 9 neutrons then what is it's net charge?"
choices:
0
1+
1-
2-
Answers
100 POINTS!!! AND BRAINLIEST!!!
This tree species was preserved as a fossil in the Arizona desert. The species is now extinct. Describe what the environment was like when the tree lived and how it is different now. Then, infer why this type of tree and other living things that lived with it are extinct.
Answers
12. A. 2 g of ferrous sulphate crystals 5 points
are heated in a dry boiling tube. a)
Name and define the type of reaction
that has taken place. b) Write
balanced chemical equation for the
above reaction. c) List two main
observations of this reaction. B. A
shining metal 'M'on burning gives a
dazzling white flame and changes to
a white powder ‘N’. a) Identify ‘M'and
'N'. b) Name the type of reaction
taking place and write the balanced
chemical equation.
Answers
Answer:
A) Decomposition reaction.
Decomposition reaction is defined as a chemical reaction whereby a compound is broken down into 2 or more simpler substances.
B) 2FeSO4 + Heat > Fe2O3 + SO2 + SO3
C) - Gas evolution because a gas is part of the product
- Upon heating its colour gradually changes from pale green to reddish brown which implies a change in state
Explanation:
A) Name of the reaction is; Decomposition reaction.
Decomposition reaction is defined as a chemical reaction whereby a compound is broken down into 2 or more simpler substances.
B) The balanced chemical equation is;
2FeSO4 + Heat > Fe2O3 + SO2 + SO3
C) From experience, the 2 main observations of this reaction are;
- Gas evolution because a gas is part of the product
- Upon heating its colour gradually changes from pale green to reddish brown which implies a change in state.
. Which of these types of electromagnetic radiation has the lowest energy?
a. Radio waves
b. Visible light
c. Gamma rays
Answers
Radio waves are the lowest-energy electromagnetic waves. They also have the longest wavelengths and the lowest frequencies. Hope this helps!
Which of the following processes is not an example of physical weathering?
A. acidification
B. abrasion
C. frost action
D. exfoliation
Answers
Answer:
acidification
Answer:
I think its A
Explanation:
Hope this helps: )
What is the percent by mass of carbon in carbon dioxide (CO2)?
A. 27%
B. 33%
C. 43%
D. 73%
Answers
Which of the following statements is FALSE? *
a.Smog is a phenomenon brought about by natural events.
b.Forest fires may be caused by human activities or by natural events.
c.Volcanic eruptions may contribute large amounts of pollutants to the atmosphere.
d.Under normal condition, the greenhouse effect maintains a temperature that support life on Earth.
Answers
Answer:
A:smog is a phenomenon brought about by natural events
Explanation:
false because of how phenomenon it is smog did not bought phenomenon and natural events!!
DOES THIS HELPFUL?
why do different people have differently shaped proteins?
Answers
The sequence of amino acids in the chain determines how the chain will fold up to make the protein, so different proteins have different three-dimensional shapes. ... This is because proteins form attachments and interact with many other molecules and structures inside organisms.
Please help me I need help.
Answers
A leaking underground storage tank or wastewater pouring into a river from a pipe would be examples of
Answers
Answer:
Water pollution.
Explanation:
This is because water pollution refers to the release or disposal of harmful substances called contaminants which contaminate water bodies which include rivers, oceans, lakes e.t.c.. These harmful substances affect aquatic organisms and make water unfit for good use. This can lead to the death if aquatic lives in the water bodies, release of bad smells and make the water bad . A leaking underground storage tank or wastewater pouring into a river from a pipe can be a source of water pollution.
Will lithium become a cation or anion?
Answers
Answer:
Lithium Cation is a monovalent cation that is metabolized much like sodium and is important in many cellular functions inside or on the surface of cells. lithium has a single valence electron that is easily given up to form a cation. Because of this, lithium is a good conductor of heat and electricity as well as a highly reactive element, though it is the least reactive of the alkali metals
Which of these would most likely happen to a species that is not able to adapt to a changing environment?
Answers
Answer:
If a species cannot adapt to the changes in their ecosystem, they may move to another location. If they will not move, the species may become threatened, endangered or extinct.
Explanation:
The way the question is worded, it sounds like there are options for you to chose from that you are not showing. I could help you out more if I actually knew the options.
Extinction is likely if conditions change faster than a species can evolve, and if members of that species lack the traits required to survive in the new environment.
What is an extinction ?The death of all members of a species of plants, animals, or other organisms is referred to as extinction.
The primary cause of higher extinction rates is habitat loss. Other causes include habitat changes, commercial overexploitation of wildlife, the introduction of harmful nonnative species, pollution, and disease spread.
If a species is unable to adapt to changes in its ecosystem, it may relocate. The species may become threatened, endangered, or extinct if they do not move.
Thus, Extinction is likely if environmental conditions change faster than a species can evolve and members of that species lack the traits needed to survive in the new environment.
To learn more about the extinction, follow the link;
https://brainly.com/question/14480057
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a chemist determined by measurements that 0.015 moles of tungsten participated in a chemical reaction. Calculate the mass of tungsten that participated in the chemical reaction.
Answers
Answer: 0.84g
Explanation:
Help i’m taking a test!!
What new element is formed from the equation below? (Answer form is
MN:, AN: , S)
Answers
Answer:
Element Z
Explanation:
I hope this is correct and helps you!
1) Escribe oraciones coherentes que incluyan los siguientes términos con los conceptos correspondientes:
CARBÓN-PETRÓLEO-GAS NATURAL-RECURSO NO RENOVABLE-
COMBUSTIBLES FÓSILES-HIDROCARBUROS-RESERVAS-CONTAMINACIÓN-
MAREAS NEGRAS
Answers
La respuesta correcta para esta pregunta abierta es la siguiente.
Estas son las oraciones apropiadas.
El carbón, el petróleo, y el gas natural son recursos naturales no renovables.
Estos generadores naturales de energía son considerados combustibles fósiles que produce la mayor parte de hidrocarburos que se usan en el mundo. Sin embargo, estas reservas energéticas se están agotando porque son recursos naturales no renovables. Además, estos combustibles son altos generadores de contaminación como es el caso de las mareas negras.
Independientemente de estas ideas, es apropiado decir que los combustibles fósiles han sido fuertemente cuestionados por los ambientalistas y los científicos porque son causantes del llamado calentamiento global y del cambio climático.
Por esa razón, la sociedad y los expertos ambientalistas están pidiendo que los gobiernos comiencen a utilizar más energías alternativas y renovables como la energía solar y las turbinas de viento o energía eólica.
What is the pH of a 0.21 M solution of LiOH?
Answers
Answer:
13.32
Explanation:
pOH=-log(0.21)=0.68
pH=14-pOH=14-0.68=13.32
Calculate the molar solubility of aluminum hydroxide (AlOH)3) in a 0.027M solution of aluminum nitrate (Al(NO3)3). The Ksp of AlOH)3 is 2.0x10-32.
Answers
Answer:
s = 5.22x10⁻⁹ M
Explanation:
Let's write the equilibrium reaction for this compound:
Al(OH)₃ <-------> Al³⁺ + 3OH⁻ Ksp = 2x10⁻³²
To get the solubility, we need to write the equilibrium expression:
Ksp = [Al³⁺] [OH⁻]³
Al(OH)₃ does not contribute to the equilibrium expression, because is a solid compound. Now, according to this, we have the following:
Al(OH)₃ <-------> Al³⁺ + 3OH⁻
I. 0 0
E. s 3s
Replacing into the Ksp expression:
2x10⁻³² = (s) (3s)³
2x10⁻³² = s * 27s³
2x10⁻³² = 27s⁴
s = ⁴√2x10⁻³² / 27
s = 5.22x10⁻⁹ MThis would be the solubility of the compound.
Hope this helps
At STP, which of the following would have the same number of molecules at 1 L of C2H4 gas? Assume that each behaves as an ideal gas.
A. 0.5 L of H2 gas
B. 2 L of H2O gas
C. 1 L of Ne gas
D. 3 L of Cl2 gas
Answers
Answer: 1L of Ne gas
The answer is Option C , 1L of Ne gas will have the same number of molecules at 1 L of C₂H₄ gas
What is STP ?At standard temperature and pressure, a system is said to have a temperature of zero degrees centigrade (273 Kelvins) and the pressure equal to the atmosphere is always 1 atm.
Additionally, one mole of any gas at STP occupies a volume of 22.414 L.
This concept only holds true for gases.
So for a gas having same pressure , temperature and moles according to the Ideal Gas Law , volume also needs to be same
pV=nRT
and in the given option ,Option C has the same volume as that of 1 L of C₂H₄ gas .
To know more about STP
https://brainly.com/question/26107741
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At which positions will the Earth have spring and fall?
Answers
Answer:
In fall and spring the planets axis is in line with the sun. It's directly over the equator, equally hitting the northern and southern hemispheres.
Marie Curie's work with radioactive materials eventually lead to her death. At the age of 66, what
disease did Madame Curie die from?
Answers
Answer:
Radiation-induced Luekimia
Explanation:
They worked with many radioactive elements, so it caused Leukemia which is
a disease in which the bone marrow and other blood-forming organs produce increased numbers of immature or abnormal leukocytes.
Hoped this helped
Which heat source is most directly connected to the seasons?
Answers
Answer:
the solar heat source from the sun is what gives us most of the heat
Explanation:
What is the momentum of a motorcycle and a rider weighing 215 kg traveling at a speed of 62 meters per second?
Answers
Answer:
[tex]p=13330kg*\frac{m}{2}[/tex]
Explanation:
Hello there!
In this case, since the momentum of any body is calculated by multiplying the mass and the velocity:
[tex]p=m*v[/tex]
We simply need to multiply the 215 kg of the motorcycle by the velocity it has, 62 m/s to obtain:
[tex]p=215kg*62m/s\\\\p=13330kg*\frac{m}{2}[/tex]
Regards!
How many days does it take the moon to orbit the Earth once.
Answers
Answer:
27.3 days
Explanation:
I really have no explanation lol.
Answer:
Hope thia helps
Explanation:
it takes 27.3 days!!!
Write out a “for every” statement that relates the amount of methane to the amount of oxygen gas (CH4 + 2O2 = CO2 + 2H2O)
Answers
Answer:
For every one molecule of methane, one molecule of oxygen is required to release one molecule of CO2 and 2 molecule of H2O
Explanation:
As we can in the balanced equation below -
CH4 + 2O2 = CO2 + 2H2O
One molecule of CH4 reacts with two molecule of oxygen to release one molecule of CO2 and 2 molecule of H2O.
Hence, it can be said
For every one molecule of methane, one molecule of oxygen is required to release one molecule of CO2 and 2 molecule of H2O
____N2 + ____H2 ____NH3
Answers
Answer:
N2 + 3H2 + 2NH3
Explanation:
I'm assuming you're balancing the chemical equation
[tex]nitrogen \: reacts \: with \: hydrogen.[/tex]
N2 + 3H2 → 2NH3.
Explanation:-
L.H.S.
N = 2, H = 3×2 = 6.
R.H.S.
N = 2, H = 3×2 = 6.
What is the acceleration of a 7 kg
mass being pulled by a 56 N force?
Answers
Answer:
8 meters per second per second
Explanation:
Newton's second law: [tex]f=ma[/tex], force = mass multiplied by acceleration.
Therefore 56 / 7 = acceleration = 8
if (H+] = 10^-2 M
what will be pH = ?
Answers
pH = -log(10^-2)
pH = 2