How do you find the IUPAC name for a compound like ZnO
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You've just solved a problem and the answer is the mass of an electron, me=9.11×10−31kilograms. How would you enter this number into the answer box?
How many hydrogen atoms are represented in the formula (CH3)2CH2?
Describe two human activities that can affect the water cycle.
3. Rank each of the following in order of DECREASING atomic radiusa. Cl, Br, Ga
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Explanation:
Atomic number is defined as the sum of total number of protons present in an atom. Each element has different atomic number.
Whereas mass number is the sum of total number of both protons and neutrons present in an element.
For example, an atom with mass number as 15 and has atomic number 7. Then it means it has 7 protons.
Therefore, number of neutrons present in it will be calculated as follows.
Mass number = no. of protons + no. of neutrons
15 = 7 + no. of neutrons
no. of neutrons = 15 - 7
= 8
Thus, we can conclude that the number of neutrons is calculated as mass number minus total number of protons present in the atom.
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Most of the positively charged particles should bounce back at a range of angles as they collide with the atoms in the foil; only a few should pass straight through the foil.
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Answer:
Phosphorus cycle
Explanation:
Biogeochemical cycle, any of the natural pathways by which essential elements of living matter are circlated.
There are four types of biogeochemical cycle, they are ; water cycle,carbon cycle,nitrogen cycle and phosphorous cycle
Carbon cycle is the cycle in which photosynthesis and cellular respiration take place.
Water cycle involves transpiration.
Nitrogen cycle Is the cycle that is dependent upon bacteria for nitrogen fixation and denitrification.
Phosphorus cycle is one of the slowest biogeochemical cycle. It does not stay in the atmosphere, because it is normally in a liquid state at room temperature. It does not include the atmosphere.
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2. Agitation ( Stirring )
3. Increasing the Surface area
however, 1 and 2 act opposite in gases while 3 doesn't affect gases.
The only thing that affect gases is
4. pressure
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The examples that represent potential energy are:
A. A candy bar
B. A stretched rubber band
D. A roller coaster at the top of a hill
What is Potential energy?
It is the stored energy in any object or system by virtue of its position or arrangement of parts. This energy depicts zero motion or movement unlike kinetic energy. For example : A candy bar, stretched rubber band and roller coaster at the top of a hill all indicate positions without any said explanation of movement.
Thus, correct options are A, B and D.
Find more information about Potential energy here:
Answer:
A candy bar
A stretched rubber band
A roller coaster at the top of a hill
Explanation:
Potential energy is the energy present as a result of the position of an object. This energy depicts zero motion or movement unlike kinetic energy.
A candy bar, stretched rubber band and roller coaster at the top of a hill all indicate positions without any said explanation of movement.
The other option choices depicts a type of movement .This is why the three option choices are correct in this scenario.