Answer:
nitrogen have more protons per atom than phosphorus
Oxygen and fluorine are the two elements that have more protons per atom than the element phosphorus.
What is phosphorus?Phosphorus (P), a nonmetallic chemical element of something like the nitrogen group (Group 15 [Va] of the periodic table), is a colorless, semitransparent, soft, sticky solid that glows in the dark at room temperature.
Hennig Brand, a German businessman with an interest in alchemy, appears to have discovered phosphorus around 1669. Brand left 50 buckets of pee alone till they putrified and "produced worms." He then reduced the urine to a paste and burned it with sand to extract elemental phosphorus first from combination. Oxygen and fluorine are the two elements that have more protons per atom than phosphorus.
Therefore, oxygen and fluorine are the two elements that have more protons per atom than phosphorus.
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Which statement describes how a substance melts?(1 point) Molecules in the substance gain kinetic energy and then become less tightly bound to each other. Molecules in the substance gain kinetic energy and then become less tightly bound to each other. Molecules in the substance lose kinetic energy and then become more tightly bound to each other. Molecules in the substance lose kinetic energy and then become more tightly bound to each other. Molecules in the substance lose kinetic energy and then become less tightly bound to each other. Molecules in the substance lose kinetic energy and then become less tightly bound to each other. Molecules in the substance gain kinetic energy and then become more tightly bound to each other. Molecules in the substance gain kinetic energy and then become more tightly bound to each other.
Answer:
Molecules in the substance gain kinetic energy and then become less tightly bound to each other.
Explanation:
According to the forces of attraction , for a substance to melt molecules in the substance gain kinetic energy and then become less tightly bound to each other.
What are forces of attraction?Forces of attraction is a force by which atoms in a molecule combine. it is basically an attractive force in nature. It can act between an ion and an atom as well.It varies for different states of matter that is solids, liquids and gases.
The forces of attraction are maximum in solids as the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.
The physical properties such as melting point, boiling point, density are all dependent on forces of attraction which exists in the substances.
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Significant digits for the number 80
Answer:
8 and 0
Explanation:
8 and 0 together make 80
a magnesium ion has 12 protons and a charge of 2 . how many electrons does it contain?
Answer:
It contains 12 electrons.
the product of 13cm and 5.7cm is correctly reported as
a. 75cm^2
b. 74.0cm^2
c. 74 cm^2
d. 74.1 cm^2
Answer:
d] 74.1 cm²
Explanation:
Product means that the values given must be multiplied.
13 cm × 5.7 cm = 74.1 cm²
the wind pushes a paper cup along the sand at a beach. the cup has a mass of 0.025 kg and accelerates at a rate of 5 m/s2. how much force is the wind exerting on the cup
To find the force,
⇒ must know the force's formula ⇒ F = MA
M: mass of the objectA: acceleration of the objectLet's consider the information given:
cup has a mass of 0.025kg --> 'M'accelerates at a rate of 5 m/s^2 --> 'A'Let's solve:
[tex]F=MA=0.025kg*5m/s^2=0.125N[/tex]
Thus the force is 0.125N
Answer: 0.125N
Hope that helps!
any process that results in the formation of an ion
The energy required to cause a gaseous atom or ion to release a electron is what?
Answer:
Ionization is the process by which ions are formed by gain or loss of an electron from an atom or molecule.
two step mole conversions, giving brainliest
Answer:
Our process will be to change the mass of NO2 to moles by dividing by the molar mass, and then we multiply the number of moles with Avogadro's number (6.02 x 10^23)
Molar mass of NO2 = (14) + (16)x2 = 46g/mol
45.8/46 = 0.99 or just 1 mole when you round it.
Now just multiply the moles with Avogadro's number
1 x (6.02 x 10^23)
= 6.02 x 10^23 molecules of NO2 reside in 45.8g of NO2
During the Cellular Respiration reaction glucose reacts with oxygen gas
to form water and Carbon Dioxide. How much carbon Dioxide would be formed from 58 grams of glucose?
try putting 66 grams CO2 for answer
Four students presented different analogies to describe the formation of an ionic bond.
Student A: A tug of war between seven middle school students and a high school student
Student B: A small dog and a big dog tugging at a bone with equal strength
Student C: Two neighbors carpooling to work
Student D: A group of high school students reading from the same book in the library
Which student presented a correct analogy?
A
B
C
D
Answer:
the correct answer is A
Explanation:
I took the test!
Answer:
A probably because its ionic
Which adaptation allowed gymnosperm plants to out-compete spore-bearing plants? stems leaves roots seeds
Please what the element it is
Answer:
Helium
Explanation:
One electron shell is shown in the model of Helium drawn by Bohr, and it has two electrons inside of it. The atomic number of helium is 2, so the number of protons and electrons that can be used to make its Bohr diagram is the same as its number.
Which model of the atom is thought to be true?
A. Protons, electrons, and neutrons are evenly distributed throughout the volume of the atom.
B. The nucleus is made of protons, electrons, and neutrons.
C. Electrons are distributed around the nucleus and occupy almost all the volume of the atom.
D. The nucleus is made of electrons and protons.
Answer:
Hi the answer should be B or 2
Explanation:
Hope this helps!
a side reaction occurs when acid is added to the system. which species reacts with the acid?
A side reaction occurs when acid is added to the system, so the species reacts with the acid is base.
What are acids?Acids are those species which have a pH range in between 0 to 7, generally acids are present with hydrogen atom in their molecular formula.
If in any reaction after adding the acid, side reaction wiull occur then in this condition base will reacts with the acid as it has the opposite behavior as of acid and formation of salt & water molecules takes plavce.
Hence the needed species is base.
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How many molecules are in 0.750 moles of magnesium sulfide?
Answer:
4.51 x 10 to the 23 power
Explanation:
hydrogen ions ________ acidity of the water which is a key point.
Answer:
Raise
Explanation:
H+ ions are acidic and lower the PH of water.
 A car has a displacement of 480 km to the east in eight hours. What is its velocity in kilometers per hour?
[tex] \sf = \frac{480}{8} = 60[/tex]
Answer:
The velocity of the car is 60 Km/hour to the east.
Hope you could get an idea from here.
Doubt clarification - use comment section.
An ion is:
Select one:
a.
An atom with an extra neutron.
b.
An atom or molecule with an electrical charge.
c.
The outermost shell of an atom.
magnesium nitrate contains chemical bonds that are
Answer:
Magnesium Nitrate is an ionic compound formed by:
Magnesium;Mg+2 (the cation) and Nitrate NO−3 (the poly-atomic anion).
In order for these two ions to bond, the charges must be equal and opposite. Therefore, it will take:
two -1 nitrate ions to balance the one +2 magnesium ion.
the process by which glucose is converted to starch is known as
Answer:
polymerization
Explanation:
Glucose is converted into starch by the process called polymerization. In polymerization, several simple and soluble molecules of glucose are put together to form a complex, insoluble molecule of starch.
Glucose is soluble , so it is converted to starch so that it can become insoluble and hence it cannot escape from cell , thus it can also be stored.
What can move from energy level to energy levels when it gains or loses what
Answer:
nothing
Explanation:
The reactant side of a balanced chemical equation is shown below,
PC15 + 4H20 →
How many hydrogen atoms should there be on the product side in the equation? (5 points)
8
6
4
2
Answer:
do u still need the answer..
Explanation:
The elements fluorine (F), chlorine (Cl), and Iodine are all part of the same ____________________ on the periodic table.
Question 9 options:
group
period
Answer:
Halogen Family of elements
Explanation:
Group Seventeen
What is the dependent variable in this graph
Answer:
height (mm)
Explanation:
The independent variable belongs on the x-axis (horizontal line) of the graph, and the dependent variable belongs on the y-axis (vertical line).
What does it mean by solution in salt solution, sugar solution, etc.
How many molecules does 1 mole of Oz gas have?
awnser : 6.02×1023 molcules
The energy required to cause a gaseous atom or ion to release a electron is what?
Answer:
The ionization energyExplanation:
The ionization energy is required to cause a gaseous atom or ion to release a electron.
In the equation 2H2 + O2 → 2H20, what are the reactants?
Answer:
2H2 and O2
Explanation:
The equation shows cellular respiration. During cellular respiration, glucose combines with oxygen to form carbon dioxide, water, and ATP. Uppercase C 6 uppercase H 12 uppercase O 6 6 uppercase O 2 right-arrow 6 uppercase C uppercase 0 2 6 uppercase H 2 uppercase 0 A T P What happens to the energy in the bonds in glucose?.
The energy in the bonds in glucose will be broken down and transferred to ATP molecules.
CELLULAR RESPIRATION:Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules in their cells.
The equation for cellular respiration is as follows:
C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP
Based on the illustration using the above equation, the energy stored in the bonds of glucose molecule is broken down and used to synthesize ATP molecules.
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Look at the diagram of metallic bonding. The light blue area represents a sea of... what?
Answer:
try elcetrons
Explanation:
if not then i'm sorry
The light blue area represents electrons.
What is an electron?
An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom) or bound to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. The larger the spherical shell, the higher the energy contained in the electron.
What is the role of electrons?
Electrons play an essential role in numerous physical phenomena, such as electricity, magnetism, chemistry and thermal conductivity, and they also participate in gravitational, electromagnetic and weak interactions.
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