Mass of Hydrogen = 3.7 g
Further explanationThe empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
180.2 g/mol of glucose-C₆H₁₂O₆ contains 72.1 grams of carbon, 96 g/mol of oxygen and the remainder is hydrogen
Remainder Hydrogen :
[tex]\tt 180-(72.1+96)=11.9~g/mol[/tex]
% mass of Hidrogen in Gllucose :
[tex]\tt \dfrac{11.9}{180}\times 100\%=6.61\%[/tex]
So mass of Hydrogen in 55.5 g Glucose :
[tex]\tt 6.61\%\times 55.5~g=3.7~g[/tex]
How many atoms are in 2.78 moles of carbon (C)?
Answer:
4.61/6
=0.7683 atom are there in 4.61 moles of carbon
Explanation:
a compound needed for photosynthesis
Answer:
Carbon dioxide as well as water are needed for photosynthesis.
Explanation:
How have observations in the sky enabled humans to explore and travel?
Answer:
Observations of the sky allowed explorers to mark the passage of time both in hours and through the months of the year. Early astronomers also realized that the night sky does not look the same from different places on the Earth.
WILL GIVE BRAINLIEST
Which statement describes earthquakes?
They release energy.
They are caused by reduced stress in rocks.
They begin at the epicenter.
They result from movement on Earth’s surface.
Answer:
A
Explanation:
Sixth-grade students study the relationship between potential and kinetic energy.
Which statement gives an example of potential energy converting into kinetic energy?
A.
A soccer player kicks a stationary ball toward the goal.
B.
A rollercoaster at the top of an incline and a rollercoaster rolling down an incline.
C.
O
A bow and arrow pulled back and the string on the bow and arrow released.
D.
All of the above
i think it is D
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1)
Layers of cells that form a basic structural material of a plant or animal are known as
A.) system
B.) organ
C.) tissue
D.) organism
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2)
All of these plant structures are used in reproduction except
A.) spore
B.) stamen
C.) pistil
D.) phloem
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3)
A nonliving or chemical factor that affects the ability of organisms to survive and reproduce is called
A.) a limiting factor
B.) a biotic factor
C.) an abiotic factor
D.) succession
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4)
The phyla that is the largest and most diverse is the
A.) sponges
B.) flatworms
C.) arthropods
D.) chordates
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5)
In order to survive all organisms must be able to do all of these except
A.) grow
B.) reproduce
C.) move from place to place
D.) eliminate wastes
Answer:
c
Explanation:
Which of the following best represents and explains the formula for a compound made from fluorine and hydrogen?
A. HF, because both fluorine and hydrogen are capable of forming only one ionic bond.
B. HF, because both fluorine and hydrogen are capable of forming only one covalent bond.
C. H2F, because fluorine is short of two electrons, and hydrogen is short of one electron.
D. H2F, because fluorine is capable of forming one, and hydrogen is capable of forming two covalent bonds.
Thank you
The answer is B
HF, because both fluorine and hydrogen are capable of forming only one covalent bond.
The formula for a compound made from fluorine and hydrogen is HF, because both fluorine and hydrogen are capable of forming only one covalent bond. The correct option is option B.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion. Covalent bond is weaker than ionic bond.
There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron.
The formula for a compound made from fluorine and hydrogen is HF, because both fluorine and hydrogen are capable of forming only one covalent bond.
Therefore, the correct option is option B.
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the boiling points of two liquids are 120°C and 240°C, to what minimum temperature do I have to heat them in order to separate them?
Answer:
120C°
Explanation:
Object A has a mass of 500g and object B has a mass of 300g. Which object is more dense?
Answer:
500g because 300g is less dense than 500g its kinda like a weight
Explanation:
i
7. What are the coefficients needed to balance the following chemical equation?
N2+ H2 + NH3
a. 1,2,3
b. 1,3,2
c. 1,3,3
d. 2,2,3
Answer:
D, 2,2,3,
Explanation:
Every element has a unique amount of
Transcription of the sequence TTA AGC produces which sequence?
AAT UCG
AAT TGC
UUT TCC
AAU UCG
Answer:
AAU UCG
Explanation:
According to the base-pairing rule, the purine bases always pair with the pyrimidine bases. More specifically, Adenine always pairs with Thymine/Uracil while Guanine always pairs with Cytosine.
T - A
T - A
A - U
A - U
G - C
C - G
Hence, the transcription of the sequence TTA AGC will produce AAU UCG.
how do you determine valence electrons of a metal? A non Metal?
Answer:
Check the electronic configuration of elements.
Explanation:
▪Valence electrons are the elwctrons present in the outermost shell of any element.
For example,
Electronic Configuration of Sodium = 2,8,1
Here , Sodium has 1 valence electrons.
▪Valency of an element is the total no. of electrons to be gained/losed in order to achieve duplet/octate state.
For example,
Electronic configuration of Sodium = 2,8,1
Sodium can achieve octate state either by losing 1 electron or gaining 7 electrons. But losing 1 electron is eay than gaining 7 electrons. So Valency of Sodium = +1
☆Metals have 1 or 2 or 3 valence electrons.
☆Non metals have 4 or 5 or 6 or 7 valence electrons.
☆Noble gases tend to stay in duplet/octate state i.e they have 2 or 8 valence electrons.
Which of the definitions below is best for the word molecule? Atoms of different elements chemically joined together More than one atom chemically joined together A type of compound More than one atom of the same type chemically joined together A group of atoms together
Answer: More than one atom of the same type chemically joined together
Explanation:
An atom is the smallest unit of any matter which may or may not have independent existence. Example: Argon (Ar) is an element which exist as Ar atom only.
Molecule is the smallest unit of any matter which always have independent existence. For example: Hydrogen (H) is an element which can exist in nature as [tex]H_2[/tex] molecule only.
Atoms of different elements chemically joined together is called as a compound. Example: [tex]H_2O[/tex] is a compound formed by chemical combination of hydrogen (H) and oxygen (O) atom.
Can someone help me please!
A student wants to know what elements are present in the star sirus b.what instruments would he use
Answer:
Hydrogen and helium are the most abundant elements in a star.
Explanation:
What is the charge that oxygen gets when it becomes an ion?
Answer:
Explanation: Every electron has a single negative(-) charge, the addition of two electrons results in an oxygen ion with a charge of negative(−)2. This is in fact true of every element located under oxygen in the periodic table.
P.S. hope this helps :)
Which chemical equation represents a decomposition reaction?
O A. 2C2H6 + 702 + 4CO2 + 6H20
O B. AgNO3 + LiCl → AgCl + LINO3
O C. Ca + MgS → CaS + Mg
O D. 2H20 2H2 + O2
Decomposition reaction D. 2H20⇒ 2H2 + O2
Further explanationEvery chemical reaction involves a compound consisting of reactants and products
Reactants are compounds that react and form new compounds called products
There are several forms of reactions that can occur, including single replacement, double replacement, synthesis, decomposition, etc.
A. 2C2H6 + 702 ⇒ 4CO2 + 6H20
Combustion : reaction of Hydrocarbon and Oxygen
B. AgNO3 + LiCl → AgCl + LINO3
Double replacement : there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product
C. Ca + MgS → CaS + Mg
Single replacement :one element replaces the other elements of a compound to produce new elements and compounds
D. 2H20⇒ 2H2 + O2
Decomposition : One compound breaks down into 2 components
Decomposition, often known as rot, is the breakdown of dead organic matter into more basic organic or inorganic components such as carbon dioxide, water, simple sugars, and mineral salts. Here among the given options, the decomposition reaction is 2H₂O→ 2H₂ + O₂. The correct option is D.
Decomposition reactions occur when complex chemical entities split apart into smaller components. Decomposition reactions often demand energy input. For instance, the thermal breakdown of potassium chlorate (KClO₃) is a typical technique used in laboratories to generate oxygen gas.
Soft drink carbonic acid breaks down to release carbon dioxide gas. As water breaks down, gases like hydrogen and oxygen are released. Food digestion is a response to breakdown.
Thus the correct option is D.
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The solids and liquids with the strongest intermolecular forces of attraction will have the
lowest melting and boiling points.
a. TRUE
b. FALSE
Please help
As the temperature increases, the molecular motion of the molecules decreases and it
becomes difficult to overcome the polar attractions.
a. TRUE
b. FALSE
whether the solution is acidic or basic And how much if we dissolve 6 grams of nitric acid and make 500cm3 of solution helpp pleasee
Answer:
i have no clue good luck
Explanation:
The membrane enclosing the nucleus of an eukaryotic cell is
called the nuclear ___
Answer:
It's called the nuclear envelope.
What is the formula to calculate speed?
O S= t/d
O S=d/t
OS=dxt
O S=txd
Answer:
the formula to calculate speed is d/t.
How many atoms are in 1 mole of cobalt atoms?
Answer:
Explanation:
Explanation: NA,Avogadro's number specifies 6.0221×1023 individual particles. It is simply another collective number like a dozen, or a score, or a gross. NA has the property that 6.0221×1023 individual cobalt atoms has a mass of 58.93⋅g
Answer:
6.0221×1023
Explanation:
if a sprinter runs across a football field that is 100 yards long, what is the distance in miles?
Answer:
100/20 = 5
Explanation:
give me song lyrics that use
To break we add
To add we break (correct me if I'm wrong)
and lyrics should be related to chemistry
Due in 10 mins
good luck with the song lyrics, you got this! :)
She remembered that chemical equations can summarize what happens in a chemical reaction. What is the name of the two parts found on the left side of the equation below? 4 Fe + 3O2 → 2Fe2O3 A. products B. reactants C. scientific notation D. synthesis
Answer:
The name of the two parts found on the left side of the equation is reactants.
Explanation:
Chemical reaction is the way one substance reacts against another. That is, a chemical reaction is that chemical process in which two or more substances, by the action of an energy factor, are converted into other substances. The new substance (s) that are formed usually present a totally different appearance from that of the starting substances.
In a chemical reaction there are the substances that react, that is, the reactants, and the substances produced, called products.
A chemical reaction is represented by a chemical equation. The formulas of the reactants are written on the left, and those of the products on the right, both separated by an arrow indicating the direction of the reaction.
Reactants ⇒ Products
Then, the name of the two parts found on the left side of the equation is reactants.
What is composed of two different atoms?
Give an example of a trait and explain how a genetic trait is passed down from
parent to offspring in animals.
Your answer
Explanation:
Parents pass characteristics such as hair color, nose shape, and skin color to their offspring. Not all of the parents' characteristics will appear in the offspring, but the characteristics that are more likely to appear can be predicted.
I'm just trying to answer questions. T^T
There are 1,000 J in a kJ
