Answer:
The nitrogen atom is sp³ hybridized
This is trigonal pyrymid shape
Explanation:
Step 1: Data given
A compound contains only nitroen (N) and Iodine (I)
The procent of nitrogen by mass = 3.55%
Atomic mass of N = 14.0 g/mol
Atomic mass of I = 126.9 g/mol
Step 2: Calculate mass % of iodine
Mass % iodine = 100 % - 3.55%
Mass % iodine = 96.45 %
Step 3: Calculate number of moles
Let's suppose the total mass = 100 grams
Mass of N = 3.55 grams
Mass of I = 96.45 grams
Moles N = 3.55 grams / 14.0 g/mol = 0.254 moles
Moles I = 96.45 grams / 126.9 g/mol = 0.760 moles
Step 4: Calculate empirical formula
For 0.254 moles N we have 0.760 moles I this is 1:3
This means that for 1 mol N we have 3 moles I
The empirical ( and also the molecular) formula is I3N
The nitrogen atom is sp³ hybridized.
This is trigonal pyrymid shape
Which type of macromolecule carries genetic information from parents to
their children?
A. Nucleic acids
B. Carbohydrates
C. Proteins
D. Lipids
Answer: Its A nucleic acids
Explanation:
Nucleic acids, and DNA in particular, are key macromolecules for the continuity of life. DNA bears the hereditary information that's passed on from parents to children, providing instructions for how (and when) to make the many proteins needed to build and maintain functioning cells, tissues, and organisms.
Nucleic acids carry genetic information from parents to their children.
What are Nucleic acids?Nucleic acids are biopolymers, macromolecules, essential to all known forms of life.[1] They are composed of nucleotides, which are the monomers made of three components: a 5-carbon sugar, a phosphate group and a nitrogenous base. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). If the sugar is ribose, the polymer is RNA; if the sugar is the ribose derivative deoxyribose, the polymer is DNA.
Nucleic acids are naturally occurring chemical compounds that serve as the primary information-carrying molecules in cells and make up the genetic material. Nucleic acids are found in abundance in all living things, where they create, encode, and then store information of every living cell of every life-form on Earth. In turn, they function to transmit and express that information inside and outside the cell nucleus to the interior operations of the cell and ultimately to the next generation of each living organism. The encoded information is contained and conveyed via the nucleic acid sequence, which provides the 'ladder-step' ordering of nucleotides within the molecules of RNA and DNA. They play an especially important role in directing protein synthesis.
Learn more about Nucleic acids
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If 12.5 grams of Hydrogen and 5.14 grams of Oxygen react in a container what would be the excess leftovers? Thanks! :)
Answer:
Explanation:
The reaction is 2H2 + O2 -> 2 H2O
So the molar ratio of H2 and O2 is 2:1
No. of moles of H2 = 12.5/2 = 6.25
No. of moles of O2 = 5.14/32 =0.16
As 6.25 > 0.16*2 = 0.32
there will be H2 leftovers of 6.25-0.32 = 5.93 moles or 11.86 grams
Answer:
Explanation:
2 H2 + 1 O2 => 2 H2O
molecular wt of H2 = 2
molecular wt of O2 = 32
so wt of H2 : wt of O2 = 2x2 : 16 = 4 : 16 = 1 : 4
there are way more H2 as 12.5 > 5.14/4 = 1.285
H2 leftovers = 12.5 - 1.285 = 11.215 gram
You observed the formation of several precipitates in the Reactions in Solution lab exercise. Identify the precipitate in each of the following reactions: a. The yellow precipitate formed in the reaction between KI and Pb(NO3)2 is . b. The white precipitate formed in the reaction between BaCl2 and H2SO4 is . c. The brown precipitate formed in the reaction between NaOH and FeCl3 is . d. The blue precipitate formed in the reaction between CuSO4 and NaOH is .
Answer:
See explanation
Explanation:
a) the reaction between KI and Pb(NO3)2 occurs as follows;
2KI(aq) + Pb(NO3)2(aq) ---> PbI2(s) + 2KNO3
Hence the yellow precipitate in the reaction is PbI2
b) the reaction between BaCl2 and H2SO4 occurs as follows;
BaCl2(aq) + H2SO4(aq) ---> BaSO4(s) + 2HCl(aq)
Hence the white precipitate in the reaction is BaSO4
c) the reaction between NaOH and FeCl3 is as follows;
3NaOH(aq) + FeCl3(aq) ----> Fe(OH)3 + 3NaCl(aq)
Hence the brown precipitate is Fe(OH)3
d) the reaction between CuSO4 and NaOH occurs as follows;
CuSO4(aq) + 2NaOH(aq) ---> Cu(OH)2(s) + Na2SO4(aq)
Hence the blue precipitate is Cu(OH)2
How much of a 3.75 M KI solution would you need to prepare 252.5 mL of a 0.780 M KI solution?
HCl(aq) and KOH(aq) Express your answer as a balanced chemical equation. Identify all of the phases in your answer.
Answer:
HCl(aq) + KOH(aq)---------->KCl (aq)+ H2O(l)
Based on a specific example of titration method. How do titration methods play a role in agriculture industry? Discuss
Answer:
Titration is an analytical technique that is widely used in the food industry. It allows food manufacturers to determine the quantity of a reactant in a sample. For example, it can be used to discover the amount of salt or sugar in a product or the concentration of vitamin C or E, which has an effect on product colour.
2
Drag the tiles to the correct locations on the equation. Not all tiles will be used.
Two atoms interact with each other as shown by the equation. Complete the equation by filling in the missing parts.
1
2
3
4
5
5
H
le
Li
?H + He -
+
TH
H
Reset
Next
Answer:
4 on the top
He in the middle
2 on the bottom
Explanation:
Correct on plato
The missing of the part of the chemical equation when the two atoms interact is Helium with mass number 4 and atomic number 2.
What is interaction of the two atoms?The two atoms interact with each other as shown by the equation below;
[tex]^4_2He[/tex]
where;
He is Helium atom4 is the mass number of the helium atom2 is the atomic number of the helium atom.Thus, the missing of the part of the chemical equation when the two atoms interact is Helium with mass number 4 and atomic number 2.
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Can y’all please help me with these 2? I had surgery and missed this entire unit and it’s due Monday
What separation technique can the mixture of sodium chloride and iodine be separated
Answer:
Sublimation
Sublimation is the best method for separating iodine from common salt (NaCl).
Explanation:
sana makatulong
respiration of rabbit
Answer:
A rabbits respiration should be 30-60 breaths per minute
Suppose 0.879 g of ammonia reacts with 28.5 mL of a hypobromite solution. Calculate the concentration of the hypobromite solution.
Answer:
0.877 M
Explanation:
Number of moles of ammonia = 0.879 g /17 g/mol = 0.05 moles
The reaction equation is ;
2NH3 + OBr-→ N2H4 + Br- + H2O
2 moles of NH3 reacts with 1 mole of hypobromite
0.05 moles of NH3 reacts with 0.05 moles ×1 mole/2 moles
= 0.025 moles
Number of moles = concentration × volume
Concentration = Number of moles / volume
Concentration = 0.025 moles × 1000/28.5
Concentration = 0.877 M
help pls I'll give you briliantest by tomorrow 11:59pm pls no links
Answer:
It's sunset because the sun sets in the west and rises in the east. The shadow is going west therefore the sun must be in the east. Also the shadow is super long meaning the sun has to be close to the horizon.
Explanation:
How many moles of lithium nitrate are theoretically produced if we start with 3.0 moles of Ca(NO3)2 and 3.0 moles of Li3PO4? Reaction: 3Ca(NO3)2 + 2Li3PO4 → 6LiNO3 + Ca3(PO4)2
Answer:
6.0 mol LiNO₃
Explanation:
3Ca(NO₃)₂ + 2Li₃PO₄ → 6LiNO₃ + Ca₃(PO₄)₂First we need to determine which reactant is the limiting reactant:
We calculate with how many Ca(NO₃)₂ moles would 3.0 moles of Li₃PO₄ react, using the stoichiometric coefficients of the reaction:
3.0 mol Li₃PO₄ * [tex]\frac{3molCa(NO_3)_2}{2molLi_3PO_4}[/tex] = 4.5 mol Ca(NO₃)₂There are not as many Ca(NO₃)₂ moles, so Ca(NO₃)₂ is the limiting reactant.
Using the number of moles of the limiting reactant, we calculate how many moles of LiNO₃ would be formed:
3.0 mol Ca(NO₃)₂ * [tex]\frac{6molLiNO_3}{3molCa(NO_3)_2}[/tex] = 6.0 mol LiNO₃At about what age does basal metabolic rate begin to gradually decrease?
15
25
30
45
Answer:
at age 15 the BMR begin to gradually decrease
True or False: There are more genes on
Earth today than ever before.
Answer:
true
Explanation:
because scientist are discovering new things everyday.
Answer:đúng nhé người ae
Explanation:
Calculate the pKa of hypochlorous acid (HClO, a weak acid). A 0.015 M solution of hypochlorous acid has a pH of 4.64.
Answer:
"7.46" is the correct answer.
Explanation:
Given that:
[tex]pH=4.64[/tex]
[tex]C=0.015 \ M[/tex]
The equation:
⇒ [tex]HA \rightleftharpoons H^++A^-[/tex]
HA = C - Cα
H⁺ = Cα
A⁻ = Cα
now,
⇒ [tex]pH=-log(H^+)[/tex]
[tex]=-log(C \alpha)[/tex]
[tex]=4.64[/tex]
[tex]C \alpha = 2.3\times 10^-5 \ M[/tex]
As we know,
⇒ [tex]K_a=C \alpha^2[/tex]
[tex]=(\frac{C \alpha}{C} )^2\times C[/tex]
[tex]=\frac{(2.3\times 10^{-5})^2}{0.015}[/tex]
[tex]=3.5\times 10^{-8}[/tex]
hence,
⇒ [tex]pK_a=-log(K_a)[/tex]
[tex]=7.46[/tex]
pls help !!!!!!!!!!!!!!!!
Answer:
Definitely A.
Explanation:
very hot...................
Waves conduct energy through
A fungicide was used to kill the mushrooms in a
lawn. Some mushrooms were not affected by the
fungicide. The resistant mushrooms reproduced.
The resistance of some of the mushrooms to the
fungicide was
Answer: a
Explanation:
La rapidez a la que cantan los grillos de árbol es de 2.0 ×102 veces por minuto a 27°C
Answer: Accroding to my calculations One time when I went to deny i got lost and I was very tired and hungry So i licked my ice cream then I found my parents and had fun I hope you enjoyed my answer
Explanation: Whdd
The ideal gas law is PV = nRT.
Use 8.31 for R. (8.31 Lx kPa / Kx mol)
What is the temperature of 3.0 moles of a gas that is in a closed container of
volume 9L, and has a pressure of 85kPa?
1. 3.4 kelvin
2. 0.03 kelvin
3. 30.7 kelvin
4. 28.6 kelvin
Answer: 30.66945 kelvin
Explanation:
(S)-3-Methylhexane undergoes radical bromination to yield optically inactive 3-bromo-3-methylhexane as the major product. Is the product chiral
Answer:
No, the product is not chiral
Explanation:
The compound (S)-3-Methylhexane is chiral. However, the bromination of this compound via free radical mechanism yields an achiral intermediate as shown in the image attached to this answer.
This achiral intermediate is a flat and planar tertiary radical. Attack on either face of this radical specie is possible. This leads us to obtain a 50-50 mixture of (R) and (S) - 3-bromo-3-methylhexane.
This is a racemic mixture hence it is optically inactive.
What happens to the Cl atom when it becomes part of a stable molecule NaCl?
Answer:
It looses an electron
Explanation:
We must remember that sodium chloride is an ionic compound. In an ionic compound, a metal is often bonded to a non metal.
The metal looses electron(s) and the nonmetal accepts electron(s). The metal forms its cation while the non metal forms its anion.
Thus an ionic compound is basically a pair of ions held by electrostatic interaction.
Thus, when chlorine becomes part of sodium chloride, it gains one electron from sodium and becomes Cl^-
Rank the following four isomeric hydrocarbons in order of increasing stability: - cis-1,4-Dimethylcyclohexane - 1-Cyclopropylpentane - Ethylcyclohexane - cis-1-Ethyl-2-propylcyclopropane
Answer:
cis-1-Ethyl-2-propylcyclopropane <1-Cyclopropylpentane <cis-1,4-Dimethylcyclohexane <Ethylcyclohexane
Explanation:
The least is the number of additives especially at the position 1,4 of the cyclohexane, the more is the stability.
Hence, the correct order of increasing stability is
cis-1-Ethyl-2-propylcyclopropane <1-Cyclopropylpentane <cis-1,4-Dimethylcyclohexane <Ethylcyclohexane
write any 5 great scientist name
Albert Einstein
Marie Curie
Isaac Newton
Charles Darwin
Nikola Tesla
Galileo Galilei
Ada Lovelace
Please mark me brainliest!
Albert Einstein Charles Darwin Robert Hooke Issac Newton
Galileo Galilei
An imaginary line dividing the earth's surface into two hemisphere the northern and southern hemisphere, it is locatedat 0⁰, which of the following imaginary lines is being described? a.equator b.latitude c.longitude d.prime meridian
Answer:
A. Equator
Explanation:
The equator is located in the centre of the Earth, dividing the northern and southern hemispheres.
Answer:
Equator because equator divides the earth into Northern and Southern hemisphere.
If the pH of a solution increases from 4.0 to 6.0, the hydronium ion concentration.
A) increases by a factor of 100.
B) decreases by a factor of a 100.
C) decreases by a factor of 1.5
D) increases by a factor of 1.5
Answer:
decrease by a factor of 1.5
What is the function of a lyase enzyme?
a. To assist the substrate by binding to the enzyme, enabling substrate to active site engagement
b. To facilitate a reaction of one substrate to form two products with the use of water
c. To facilitate a reaction of one substrate to form two products without the use of water
d. To tell fibs
Answer:
c. To facilitate a reaction of one substrate to form two products without the use of water
Explanation:
A lyase is an enzyme that catalyzes - accelerates the chemical reaction - in which a substrate is broken into two molecules. The reaction does not involve hydrolysis or oxidation, so the water molecule is not included in the chemical reaction. Thus, the enzyme facilitates the reaction in which a molecule (substrate) is decomposed into two molecules with the elimination of chemical bonds.
Help plz and thanks I will Mark you as BRAINLIEST
Answer:
did not mean to type that sorry i'm pretty sure the answers are c and b.
Explanation:
Answer:
Question 9
Explanation:
An everyday chemical reaction is rusting and iron reacts with oxygen to form rust
Question 8
Chemical reactions do not include fusion and fission only nuclear reactions like radioactivity
Theory of light and color: Newton separated white light into its colors using a __________ __________
(a triangular geometric figure) and proved that ___________ ___________ consists of different colors.
• The corpuscular theory: Newton explained that light is made up of ______________ called corpuscles,
and they move in a _____________ line.
• Newton’s laws of motion: Newton investigated ___________ and ___________.
• The theory of gravity: Newton explained that ___________ was the mutual ______________ of all
matter.
The diagram from Sir Isaac Newton's crucial experiment, 1666-72. A ray of light is divided into its constituent colors by the first prism (left), and the resulting bundle of colred rays is reconstituted into white light by the second. ... The violet is bent more than the yellow and red, so the colors separate.Newton's Corpuscular Theory Statement
According to the Newton's corpuscular theory: Light is made up of tiny particles called 'corpuscles' having negligible mass. These particles (corpuscles) are perfectly elastic. The corpuscles are emitted from the luminous sources such as Sun, candle, electric lamp etc.
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