Answer:
Explanation:
48000 minutes [ 1 hour / 60 min ] 1 day / 24 hours ] [365 days / year]
48000 * [ 1/(60 * 24 * 365)]
48000 * [1 / 525600]
There are 0.0930954years in 48000 minutes
How are reactivity and electronegativity related? 1 point)
. An element will be more reactive if it has a very high or very low electronegativity
Elements with lower electronegativity are more reactive than elements with higher electronegativity
Elements with higher electronegativity are more reactive than elements with lower electronegativity
Anmentess reactive it has a very high or very low electronegativity
Elements which have high electron negativity are more reactive than elements with low electron negativity.
This is because elements with high electron negativity will gain more electrons to become more stable.
When electron negativity of an element decrease it becomes more into its element form.
There will be more ionization energy of the elements who have more electron negativity.
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Answer: An element will be more reactive if it has a very high or very low electronegativity.
Is your answer
el magnesio (z=12) tiene tres isotopos 24mg, 25mg, 26mg. calcula la masa atómica promedio del magnesio
Answer:
k pleased with t shirt with the scab the formation the underlined the formationWhat is the second quantum number for one of the electrons in the 4p energy
sublevel of bromine?
O A. 1 = 1
B. /= 3
C. /= 2
D. /= 4
Answer:
D. l=1
Explanation:
The second quantum number for one of the electrons in the 4p energy
sublevel of bromine is 1=1. Therefore, the correct statement is option A.
What is the second quantum number?The second quantum number also called the azimuthal quantum number describes the shape of the orbital.
The possible values of l for a given value of the principal quantum number (n) range from 0 to (n-1) where n is a principal quantum number that describes the size of the orbital and the energy of the electron, where possible values of l determine the shape of the orbital.
In the 4p energy sublevel of bromine, n is equal to 4 because the energy sublevel and fourth principal energy level are associated. For p orbitals, the possible values of l are 1, which corresponds to a bell-shaped orbital.
Therefore, the second quantum number for one of the electrons in the 4p energy sublevel of bromine is 1.
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Which of the following two conditions will favor a spontaneous reaction?
a) an increase in entropy and a decrease in enthalpy
b) an increase in both entropy and in enthalpy
c) a decrease in entropy and a decrease in enthalpy
d) a decrease in entropy and an increase in enthalpy
Answer:
option A
an increase in entropy and a decrease in enthalpy
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prove thatp=dgh prove that P is equals to Dgh
Answer:
i hope it will help you
Explanation:
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Which of the following substances can be used to neutralize HF? Question 6 options: A) NaOH B) HF C) HCl D) SO2
Answer:
A) NaOH
got it right on the test.
Explanation:
Answer:
NaOH
Explanation:
sodium plus chloroform sodium chloride friends in the balance equation home
Explanation:
since sodium is a group 1 metal, it can easily bond with Chlorine to form Sodium Chloride (table salt).
15. Sodium chloride is called an electrovalent compound whereas carbon dioxide is called covalent compound why?
Answer:
NaCl is an electrovalent compound because the sodium and chlorine atoms give one electron from their outermost shells to each other in order to complete their octets
Explanation:
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Which of the following molecules contains six bonding electrons?
A C2H4
B CO2
C H2S
D NCl3
Answer:
c2h4 (etthane........
bexcuse it has 6 bond of hydrogen
C₂H₄ molecules contains six bonding electrons. Therefore, option A is correct.
What do you mean by the term bonding ?Chemical bonding is the process through which two or more atoms, molecules, or ions establish a chemical link to create a chemical compound. The atoms in the resultant molecule are held together by these chemical bonds.
Chemical bonds have three basic characteristics that must be taken into account: their strength, length, and polarity. The distribution of electrical charge among the atoms connected by a bond determines its polarity.
C₂H₄ molecules has six bonding electrons. This molecule is called as Ethylene. When bonding is done between two atoms, each atom shares a pair of electrons with each other.
Hence, for every one bond, two electrons are shared between two atoms
Thus, option A is correct.
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Which of the following is an element?
A. Steel
B. Sodium chloride
C. Fire
D. Carbon
Answer:
Which of the following is an element?=⟩Carbon is an element .Explanation:-
Carbon is an element having atomic number 6 and atomic mass 12 .c is the symbol to represent carbon .hope it is helpful to you
symbol for the magnesium oxide reactants
Answer:
MgO
Explanation:
Magnesium oxide is formed up of the ions Mg2+ and O2
Answer:
MgO
Explanation:
Mg2 + O2 is MgO, have a nice day
Based on this chart, what percentage of energy comes from fossil fuels?
Sources of Energy
Petroleum
37%
Other
1%
Natural Gas
24%
Renewable
Energy
7%
Coal
23%
Nuclear
Electric Power
8%
O A. 60%
OB. 23%
Ο Ο Ο Ο
C. 84%
O D. 37%
Answer:
37%+24%+23%=84% , i wish my answer is correct
why do the aquatic plants not break down by water current?
SOMEONE PLEASE HELP HURRY
I think the answer is A. I know it's Planet X.
Identify any three acids.
Identify any three bases.
What process is used to refine aluminum from its ore bauxite?
A. Electrolysis
B. Electrolytic oxidation
C. Voltaic cell processing
D. Smelting
The correct option for the process used to refine aluminum from its bauxite ore is option D.
D. Smelting
The reason why smelting is the correct choice is as follows;
Bauxite is the aluminum ore from which alumina, also known as aluminum
oxide, Al₂O₃, is produced. Bauxite is extracted from the topsoil regions of
some subtropical and tropical regions, and the Bayer process is primarily
then used to produce alumina from the bauxite.
Aluminum is produced from the alumina by an aluminum smelting process
known as the Hall—Heroult electrolytic process which involves the use of a
carbon anode and direct current to produce aluminum by reducing the
aluminum oxide
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what is the use and harm of acid write 3 points of each
Answer:
The use and harm is:
use
1. used as a flavouring agent
2. used in production of car battery
used in the treatment of scurvy
harm
1. acids are caustic
2. vapours from some acid may damage the eye
3. is corrosive in nature
Answer:
It has been shown that acid rain has detrimental effects on trees, freshwaters and soils, destroys insects and aquatic life-forms, causes paint to peel, corrosion of steel structures such as bridges, and weathering of stone buildings and sculptures, as well as impacts on human health.
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h2o how many molecules
Answer:
1 mole H2O has 6.02 × 10^23 molecules
Explanation:
What is a saturated solution that cannot dissolve any more solute because it is too concentrated?
Answer: A saturated solution, by definition, contains an amount of solute equal to the amount of dissolved solute in equilibrium with an undissolved solute. We could, however, make a supersaturated solution in which the solvent contains more solute than would be in equilibrium with undissolved.
Explanation: More solute cannot be dissolved at a given temperature in a saturated solution. This is because the solute dissolves in a solvent due to the space between the solvent particles, but with the continuous addition of solute, the space between the solvent particles is filled. As a result, no more solute particles can dissolve in the solvent.
Answer:
saturated
Explanation:
Balance in basic solution: O2(g) + Cr³+ (aq) → H₂O2 (1) + Cr₂O7²- (aq)
cr2o72+H2o2-(r3+o2)
Explanation:
r62o72+H2o2-(r3+o2)
differentiate between Acidic radical and basic radical
Explanation:
Acidic radical
Acid radical is the ion formed after the removal of Hydrogen ion (H+) from an acid. Example: When H2SO4 loses H+ ion, it forms HSO4− which is an acid radical.
Basic radical
The ion formed after the removal of hydroxide ion (OH−) from a base is known as basic radical.
PLS GUYS ITS FOR 10TH GRADE CHEM
Answer:
1. 2.63x10^6
2. 39.2
Both answers have been rounded
which option correctly shows the bond angle of a linear molecule?
a. 109.5 degrees
b. 90 degrees
c. 120 degrees
d. 180 degrees
Taking into account the definition of molecular geometry, the correct option is option d.: the bond angle of a linear molecule is 180 degrees.
In first place, molecular geometry or molecular structure is the spatial distribution of atoms around a central atom. Atoms represent regions where there is a high electron density, and are therefore considered electronic groups, regardless of the bonds they form.
That is, molecular geometry is the three-dimensional arrangement of the atoms that make up a molecule.
The molecular geometry of an element characterizes some of its physical or chemical properties, such as boiling point, viscosity, and density.
Linear molecules are molecules of the AB₂ type in which the central atom does not have lone pairs. To avoid repulsions between the binding pairs, arrange the B groups as far apart as possible. For that they must oppose each other 180 °.
In summary, linear molecular geometry describes the arrangement of different atoms with 180º bonds.
So, the correct option is option d.: the bond angle of a linear molecule is 180 degrees.
Learn more about molecular geometry with this example:
https://brainly.com/question/11298860?referrer=searchResultshttps://brainly.com/question/14203216?referrer=searchResultshttps://brainly.com/question/9965422?referrer=searchResultsSuppose 'A' is a liquid aromatic compound with molecular weight 78 and burns with sooty flame. a.Give the name of the compound 'A' b.write the molecular structure of 'A' C. What is the product when 'A' is treated with ? i.conc.HNO3 with conc.H2SO4 as catalyst ii.Halogen (cl2)in presence of sunlight and mention the use of the product obtained
Aromatic compounds are compounds that contain carbon-carbon multiple bonds.
The question did not mention that a heteroatom is present in the compound so we can assume that there is none of such. In that case, the compound contains only hydrogen and carbon.
So,
(CH)n = 78
where n is the number of each atom present.
(12 +1)n = 78
n = 78/13
n = 6
The molecular formula of the compound is C6H6
When C6H6 is treated with .conc.HNO3/conc.H2SO4 the compound shown in image 1 is formed. The reaction occurs at the C-C multiple bond.
When C6H6 is reacted with chlorine in the presence of sunlight, hexachlorobenzene (shown in image 2 attached) is formed.
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Answer:
wat
Explanation:
Answer:
Basic ABCHope it helps..Define physical and chemical properties, provide three examples of each, discuss their reversibility, and explain the fundamental differences between them.
Answer:
Physical properties are defined as the properties which can be observed without changing their chemical composition.
For example, color, volume, and molecular weight.
Chemical properties can be defined as, a properties that can be seen only after changing the substance's chemical identity.
For example, reactivity, toxicity, and flammability.
The fundamental differences between physical and chemical properties are as follows:
Chemical properties are related to chemical bonds of the substance, while physical properties are not.
In chemical properties, the chemical identity of substance changes while physical properties does not have any change.
Chemical properties predict the reaction of a substance, while physical properties only describe the appearance of the substance.
Explanation:
is riding a bike or bus quicker way to get to school?
IV:_____________
DV:____________
Hypothesis:________________________________________________
If an object is travelling 25.0 meters/second, how far will it travel in 45 minutes?
[tex]\\ \rm\longmapsto Distance=Speed(Time)[/tex]
[tex]\\ \rm\longmapsto Distance=25(2700)[/tex]
[tex]\\ \rm\longmapsto Distance=67500m[/tex]
The object travelling at 25 m/s, will travel a distance of 67500 m in 45 mins.
We'll begin by converting 45 mins to seconds. This can be obtained as follow:1 min = 60 s
Therefore,
45 mins = 45 × 60
45 mins = 2700 sFinally, we shall determine the distance travelled by the object in 2700 s (i.e 45 mins). This can be obtained as follow:Time = 2700
Speed = 25 m/s
Distance =?Distance = speed × time
Distance = 25 × 2700
Distance = 67500 mTherefore, the object will cover a distance of 67500 m in 2700 s (i.e 45 mins)
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What are the top three sources of US electricity generation?
The three major categories of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources.
What is the answer to 9.7300x10^2+9.8700x 10^3 1.0843x 10^ in scientific notation
Explanation:
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