Answers
Answer:
may be the answer will be study the structure of the earth and resources.
Related Questions
what is the weight of the ethil alcohol that exactly falls a 200 .0 mL container ? the density of ethyl alcohol is 0.789 g/mL
Answers
Answer:
158 grams
Explanation:
a) What is the role of neutrons in an atom?
b) How do we determine how many neutrons are in an atom?
Answers
Answer:
numer 1:Neutrons are required for the stability of nuclei, with the exception of the single-proton hydrogen nucleus. Neutrons are produced copiously in nuclear fission and fusion. They are a primary contributor to the nucleosynthesis of chemical elements within stars through fission, fusion, and neutron capture processes.
number 2:The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).let me know if i helped
Write Cadmium nitride formula using criss cross method
Answers
Explanation:
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
Here calcium is having an oxidation state of +2 called as Ca^{2+}Ca2+ cation and NO_3^{-}NO3− is a polyatomic anion with oxidation state of -1.. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral Ca(NO_3)_2Ca(NO3)2
PLEASE HELP!!!
Most lakes have rivers flowing out of them, carrying water to the ocean. However, some
lakes, including Great Salt Lake and the Dead Sea, have no outlet. Water flowing into
these lakes leaves only through evaporation. Considering that the water flowing into the
lakes contains many dissolved substances, how does the lack of an outlet affect the
composition of these lakes? What would you expect to happen after many more years
of inflow and evaporation?
Answers
Answer:
I feel like it could lead to flooding
pls help i need the Formula
how can you calculate the number of electrons present in a shell? pls help!!! will give brainliest
Answers
Answer:
The maximum number of electrons present in a particular shell is calculated by the formula 2n2, where “n” represents the shell number. For instance, K shell is the first shell and it can hold up to 2(1)2 = 2 electrons. Similarly, L shell is the second shell and it can hold up to 2(2).
What does temperature indirectly measure? 1)Sound 2)Thermometers 3)Chemical Reactions 4)Heat
Answers
Answer:
Heat
Explanation:
Temperature is the average thermal energy (or heat) in a substance. Sound isn't really related, thermometers measure temperature, and chemical reactions can produce heat, but none of those are measured by temperature.
546.8910 - 32.9 = ? Remember to use the appropriate significant figures.
Answers
513.991
Explanation:
546.8910
- 32.9
-----------
513.991
-----------
did this help ??
does the character of a bond become more covalent or ionic when the difference in electronegativity of the bonded atoms increases?
Answers
according to the periodic table, which element is a noble gas?
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Answer:
Argon, neon, krypton, Xenon, Radon and Organesson
Helium is classified as a(n)?
O alkaline earth metal
O alkali metal
O transition metal
O noble gas
Answers
Answer:
NOBLE GAS
Explanation:
Look At The Table Of Elements
Nitrogen has 5 electrons in its valence shell. How many more electrons will it likely gain? As a result, what charge will the Nitrogen in the above problem have?
Answers
Answer: 3 electrons; charge = -3
Explanation:
Nitrogen will likely gain 3 electrons.
Nitrogen will therefore carry a charge of -3. (since gaining electrons causes a negative charge.
A dog has a mass of 12 kg. What is its weight? Round your answer to tr
The dog weighs
NA dog has a mass of 12 kg. What is its weight? Round your answer to the nearest whole number.
The dog weighs
N.
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Answer:
118
Explanation:
ch4, o2 > co2, h20
1. Does this chemical reaction follow the law of conservation of matter?
2. How many atoms of hydrogen do you have in the reactants? How many atoms of hydrogen to you have in the product?
3. Give 1 reason why this chemical reaction/equation follows OR does not follow the law of conservation of matter?
Answers
1. No, it doesn't.
2. 4 Hydrogen atoms are on the reactants side and 2 hydrogen atoms on products side.
3. Because the mass of reactants is not equal to the mass of the products thus it doesn't follow the law of conservation of matter.
But on balancing the eqn,
CH4 + 2O2 > CO2 + 2H2O
The above eqn will follow the law of conservation of matter because the mass of reactants is equal to the mass of products.
Land can also be called
A) Money and/or profit
B) Natural Resources
C) Human Resources
Answers
Answer:
B) Natural resource
Explanation:
Answer:
B
Explanation:
Because it is always there
please help! will give a thanks
Answers
Answer:
Scientific Law
Explanation: Earth will ALWAYS attract objects to the center of itself because of gravity. This will never be disproven.
Which choice is an element? carbon dioxide water carbon air
Answers
Answer:
carbon
Explanation:
Considering the definition of elements ans compounds, carbon is an element.
Elements are simple substances that cannot be broken down by common chemical methods. The atoms in an element are the same as each other, yet they are different from those in other elements. In addition, the elements are represented by a symbol and can be found in the periodic table.
On the other hand, compounds are substances that are the result of the chemical union of two or more elements. This combination makes it impossible to identify each element by its individual and original properties. Compounds can be separated by chemical action.
In summary, the element is a pure chemical substance formed from an atom, which is characterized in that it cannot be divided or transformed by a chemical reaction. Whereas a compound is a pure chemical substance made up of a particular set of molecules or ions that are chemically bound together.
So, being:
carbon dioxide: composed of carbon and oxygen water: composed of two atoms of hydrogen and one of oxygenair: composed mainly of oxygen and nitrogenthen, carbon is an element.
Learn more:
https://brainly.com/question/20716171?referrer=searchResultshttps://brainly.com/question/13654839?referrer=searchResultswhat is the maximum wavelength of photon that will eject a ground state electron from a hydrogen atom?
Answers
Answer:
9.13 x 10^-8 m
Explanation:
The maximum wavelength of photon that will eject a ground state electron from a hydrogen atom is 9.18 * 10^-8.
What is wavelength?
Wavelength is defined as the distance between identical points in the adjacent cycle of a waveform signal propagated in space or along the wires.
Wavelength is calculated as wave speed and frequency.
Wavelength = speed/frequency
SI unit of wavelength is meter.
A ground state atom is an atom in which total energy of the electron can not be lowered by transferring one or more electrons to different orbitals.
Thus, the maximum wavelength of photon that will eject a ground state electron from a hydrogen atom is 9.18 * 10^-8.
To learn more about wavelength, refer to the link below:
https://brainly.com/question/12924624
#SPJ2
how are the light reactions and the calvin cycle connected?
Answers
Answer:
The light reactions provide the Calvin cycle with oxygen for carbon fixation, and the Calvin cycle provides the light reactions with sugars to produce ATP. The light reactions provide ATP and NADPH to the carbon fixation step of the Calvin cycle, and the Calvin cycle provides water and electrons to the light reactions.
Explanation:
The energy that drives the Calvin cycle comes from ATP and NADPH produced by the light reactions, that is, the energy capture reactions in the first stage of photosynthesis.
The Calvin cycle is a process that results from photosynthesis made by plants, through which Carbon dioxide is absorbed and transformed into organic material or biomass.
In the light phase, light energy is stored in organic molecules that provide energy to carry out the process (ATP) and have the ability to donate electrons (reducing power) to another molecule such as NADPH.These molecules formed in the light reactions participate in the reactions that make up this cycle during which carbon dioxide (CO2) taken from the atmosphere is fixed, incorporating it into the body in the form of glucose thanks to the action of the enzyme RuBisCo.Therefore, we can conclude that the molecules constituted in the light reactions (ATP and NADPH) participate in the reduction of carbon dioxide (CO2) through the series of reactions of the Calvin Cycle.
Learn more about the Calvin Cycle here: https://brainly.com/question/13984369
Studying the brightness of a star can help scientist determine what part of the life-cycle a star is in.
Answers
Answer:
yes
Explanation:
Dubnium-262 has a half-life of 34 seconds. How long will it take to decay to 1g if the original amount was 300g?
Answers
Answer:
305 seconds
Explanation:
can someone help me plz
Answers
Answer:
what do you need help with?
Explanation:
Answer:
Hello brainly user! You did not provide a question for us to help you with! In order for someone to help you, you need to provide the question you are in need of help for. What's your question?
Ned help with this question
Answers
Density = 3
Explanation:
Density = Mass/volume
D = 45/15
D = 3
I hope this helps :)
Kinetic energy in the form of moving waves of light or radiation
Answers
Answer:
radiation
Explanation:
Answer:
neither
Explanation:
Kinetic Energy is the physical movement of objects.
the elements in the far upper right corner are classified as
Answers
A bond will form so the outermost energy level of an atom will have _____.
A. room for more electrons
B. exactly four electrons
C. the maximum number of electrons
D. the fewest electrons possible
Answers
Answer:
D
Explanation:
the fewest electrons possible (looking for brainliest)
Answer:d
Explanation:
Elements have different properties because they are made up of different types of
atoms.
Right a 5 sentence paragraph explaining this!!!
Answers
Answer:
,
Explanation:
Answer:
An atom is the smallest partical in the universe that makes up everything you see around you. Every chemical element is also made up of atoms. Since atoms are what give each element their defining characteristics, each element can be composed of multiple atoms but you must have all of the same type of atoms combined in order for it to be considered an element. For example the element gold can only contain gold atoms. If you mix the atoms of one element with the atoms of another your substance has then been changed from an element to a compound.
Explanation:
(WILL GIVE BRAINLESS )Complete the sentence describing Newton's third law of motion: For every action in one direction, O b ос Od a weaker force acts in the same direction. an equal force acts in the opposite direction. a stronger force acts in the opposite direction. an equal force acts in the same direction.
Answers
Answer:
An equal force acts in the opposite direction.
Explanation:
what does temperature measure
Answers
Answer:
Average kinetic energy that's the answer
Answer:
hotness or coldness
.....................
I need helpppppppppp
Answers
Answer:
31: 1366.82
32: 6.45062
33: 12.50400
34: 210.42700
35: 63.88200 cm
36: -970.8772
Explanation:
4.550 x 300.4 = 1366.82
2.45002 + 4.0006 = 6.45062
26.004 - 13.5 = 12.50400
2.667 + (5.6 x 37.1) = 210.42700
2.34 x 4.55 x 6.0 = 63.88200
4.60 x 5.16 x 1.05 + 6.2 - 1002 = -970.8772
7 protons and 8 neutrons to nuclide notation
Answers
Answer:
yes because its nuetrins notation