Answer:
It is a exothermic reaction.
Explanation:
Exothermic reactions release energy to their surroundings.
(pls mark brainliest.)
(Boost your knowledge questions)
1. Can you light Diamond on fire?
2. What is the difference between a Chemical Process and a Physical Process?
3. How many electrons fit in each shell around an atom?
Answer:
a) Diamond can indeed be set on fire since it is made of carbon. ... Although diamond requires a higher temperature to burn, it does indeed burn via normal carbon combustion. You can even burn diamond in a regular flame if you are patient and conditions are right.
b) In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. The distinction between physical and chemical change is not clear cut.
c) Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons.
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I need help with this
What does it mean for a unit to be "derived"?
Answer:
you differentiate to find the derivative
Explanation:
Answer:
A derived unit is a unit that results from a mathematical combination of SI base units.
OR
A unit of measurement obtained by multiplication or division of the base units of a system without the introduction of numerical factors.
Explanation:
i dont know if that answered your question
How many metals, nonmetals and metalloids are there in the periodic table?
Answer:
There are 118 elements in the nature.
Metals s = 92
Non metals = 20
Metalloids Ms = 6
Explanation:
is it possible for a molecule to have polar bonds and not have a net dipole?
When do forces occur?
Answer:
When there is an interaction between two objects.
Explanation:
What compound is this?
Answer:
Carbon Tetrachloride
Explanation:
1 Carbon atom, 4 chlorine atoms (hence "tetra" prefix)
A 12.0 L helium balloon is inflated in an air-conditioned store at 21.0C. Assuming that the pressure remains constant, how large is the balloon when it is taken outside on a hot day at 40.0C?
The ballon will be 22.86L large when it is taken outside on a hot day at 40⁰C
According to pressure law, the volume of a given mass of gas is directly proportional to the temperature. This is expressed as:
V = kT
k = V1/T1 = V2/T2
Given the following parameters
V1 = 12.0L
T1 = 21⁰C
T2 = 40.0⁰C
Required
Final volume
Substitute the given parameters into the formula
12/21 = V₂/40
21V₂ = 12 * 40
21V₂ = 480
V₂ = 480/21
V₂ = 22.86L
Hence the ballon will be 22.86L large when it is taken outside on a hot day at 40⁰C.
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Which of the tests would involve a chemical change in the mineral?
hmmm water
Explanation:
Water can change if you put food coloring
in it
Which of the following is equal to avogadros number?
A. The number of atoms of bromine in 1 mol Br2
B. The number of molecules of chlorine in 0.50 mol Cl2
C. The number of molecules of nitrogen in 1 mol N2
D. The number of atoms in 1 mol CO
Answer:
A. The number of atoms of bromine in 1 mol Br2
Explanation:
Hello?
In Avogadro's constant/ number, we talk about atoms in 1 mol and not molecules.
In Avogadro's constant/ number, we talk about atoms in 1 mol and not molecules. The solution will have also been C. But it is talking about molecules. Please bear in mind that molecules is based on grams that it an element contains overall.
I hope this helps. Have a nice studies.
i need help TnT
do you think someday human beings will become extinct also because of diseases and pandemics?
What program or projects you would like to propose to avoid the extinction of human beings to happen?
Write your advocacy program or projects on the space provided below. (You may state your answers with a minimum of 5 sentences in a paragraph or bulleted paragraph form). *
Explanation:
I don't think human beings will ever extinct
cause they are smart and adaptive
Q1. I don't know the future but I would say that Humans will not become extinct because of diseases and pandemics.
rust results from iron’s reaction to oxygen. an iron nail gains mass when it rusts. how does this reaction support the law of conservation of mass?
Why is it important to possess fundamental research skills in pursuing your study?
Answer:
Research Skills enable people to identify a problem, collect informational resources that can help address the problem, evaluate these resources for quality and relevance and come up with an effective solution to the problem.
Explanation:
It is important because it might increase you critical thinking skills and it's much more easy for you to collect data. It also helps you analyze information from different sources off the internet.
Which two options are examples of chemical changes?
Answer:
gas and liquid ;-;
Explanation:
correct me if im wrong
3. Which part of a cell is not found in the cytoplasm?
a. chromosomes
b. Golgi body
c. ribosome
d. vacuole
Answer:
vacuole
Explanation:
Brainliest please
Pls help me, I’ll give 30 points
Match the correct function to the correct organelle.
Functions
Organelle
Allow substances to enter and leave the cell ___________
Vacuole
Store water or fluids __________
Ribosome
Powerhouse of the cell _________
Golgi Bodies
Produce protein _________
Nucleus
The cell ‘post office’ modify, sort and package protein __________
Cell Membrane
Control the life process of the cell __________
Mitochondria
Answer:
Allow substances to enter and leave the cell=Cell Membrane
Store water or fluids=Vacuole (vacuoles are much bigger in plant cells)
Powerhouse of the cell=Mitochondria
Produce protein=Ribosome
The cell ‘post office’ modify, sort and package protein=Golgi Bodies
Control the life process of the cell=Nucleus
Kinda confused on this. i need some help.
How many electrons does an alpha particle contain
The primary way in which the amount of carbon dioxide in the atmosphere can be increased is by ____.
the burning of fossil fuels
How are valence electrons and ionization energy related?
a 50.0 ml beaker contains 680. g mercury what is the density of mercury
Answer:
5.43 grams
Explanation:
because, Its one of the smallest planets, and is also very close to the Sun.
I can’t find the answer, can you help me please?
Answer: Warm ocean air then rises into the storm, then forming an area of low pressure underneath. :)
Explanation:
students are comparing the parts of a cell to the parts of a city. Which of the following would provide the best comparison to the nucleus of a cell?
Answer:
City Hall - directs necessary activities throughout the city
Explanation:
Answer:
Town Hall,
Explanation:
Perform the following mathematical operation, and report the answer to the correct number of significant figures.
0.34 x 0.568 = [ ? ]
Answer:
0.19312
0.19312 0.19312
What’s boiling/melting point
Answer:
Melting point is the temperature at which solid and liquid phases of a substance are in equilibrium.
Boiling point is the temperature at which its vapour pressure is equal to the external pressure.
Answer:
melting point is the temperature at which a solid changes into a liquid.
boiling point, temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure
Explanation:
A chemist who frequently carries out a complex experiment is
likely to have high:
a. Precision, but low accuracy
b. Precision
c.Accuracy, but low precision
d.Accuracy
Answer:
c.
Explanation:
This is because the chemist will get the average of the experiment from multiple attempts but not precision because the experiment is complex rather than simple.
The chemist will most likely have high accuracy, but low precision. A
chemist who has been performing experiments frequently will be accurate
when taking the required measurements for the experiment due to the
frequency.
Precision however won't be affected because precision deals with how
close his results from the experiment are. The complexity of the
experiment and the different variables used makes him likely to have low
precision.
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Which is a common unbalanced force acting on objects in motion?
a. friction
b. speed
c. inertia
d. acceleration
Answer:
a. friction
Explanation:
What is a common unbalanced force acting in motion? Common forces that are often unbalanced include the force of gravity and applied forces. When these forces are unbalanced, objects accelerate, change their position and find new configurations for which all forces are again balanced.
Friction is a kind of force.
Based on their definitions, electron affinity could be considered the opposite of
Based on their definitions, electron affinity could be considered the opposite of electron affinity. This is the force required to remove an electron from an atom while it is gaseous, or the propensity of an atom to lose electrons.
What is meant by electron?The electron is a subatomic particle with a negative one elementary charge electric charge. Due to their lack of components or substructure, electrons, which are part of the lepton particle family's first generation, are typically regarded to be elementary particles.
An electron is a negatively charged subatomic particle that can exist either free or bound to an atom (not bound). Along with protons and neutrons, electrons are one of the three primary types of particles that make up an atom. Together, protons, neutrons, and electrons make up the atom's nucleus.
This is the force required to remove an electron from an atom while it is gaseous, or the propensity of an atom to lose electrons. Conceptually, this is the polar opposite of electron affinity.
To learn more about electron refer to:
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The answer would be ionization energy
THIS IS DUE LIKE REALLY SOON I RLLY NEED HELP :,)
