Answer:
6C(s) + 6H2(g) + 3O2(g) --------------------> C6H12O6(s).
Explanation:
One of the examples under the type of sugar; monosaccharide(simple sugar) is the glucose. Glucose(with IUPAC name as D-glucose) as a monosaccharide (simple sugar) has the molar mass of 180.156 g/mol and a Melting point of 146 °C.
Thus, the unbalanced chemical reaction for the formation of glucose is given below;
C(s) + H2(g) + O2(g) --------------------------> C6H12O6(s) ΔH°f = -1273.1KJ/mol.
The balanced chemical reaction for the formation of one mole of glucose is given as;
6C(s) + 6H2(g) + 3O2(g) --------------------> C6H12O6(s).
The balanced chemical equation for the standard formation reaction of solid glucose is: [tex]\mathbf{6C_{(s)} + 6H_{2(g)} +3O_2_{(g)} \to C_6H_{12}O_{6} _{(s)} \ \ \ }[/tex]
Glucose is a simple sugar of a class of carbohydrates known as monosaccharides. It is the principal metabolite for energy production in the human body.
The formation of solid glucose [tex]\mathbf{C_6 H_{12} O_6_{(s)}}[/tex] occurs by the reaction of carbon, hydrogen, and oxygen.
The reaction formation of the solid glucose is:
[tex]\mathbf{C_{(s)} + H_{2(g)} +O_2_{(g)} \to C_6H_{12}O_{6} _{(s)} \ \ \ \Delta H_f^0= -1273.1 \ kJ/mol}[/tex]
Now, the balanced chemical equation can be expressed as follows;
[tex]\mathbf{6C_{(s)} + 6H_{2(g)} +3O_2_{(g)} \to C_6H_{12}O_{6} _{(s)} \ \ \ }[/tex]
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How many neutrons are in the nucleus of an atom with a mass number of 80 and an atomic number of 35?
Answer: 45
Explanation:
mass number = number of protons and neutrons
atomic number = number of protons
to find neutrons subtract atomic number from mass number
so 80 - 35 = 45 neutrons
Which alignment of the Sun, Moon, and Earth causes a lunar eclipse?
A.
B.
C.
D.
Answer:
A lunar eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow). This can occur only when the Sun, Earth, and Moon are aligned exactly with the Earth in the middle. Hence, a lunar eclipse can only occur the full moon phase
Explanation:
please mark me brainlist
Answer:
A sun
Explanation:
because sun has heat and gives light
question is
P2O5 a ionic or covalent bond, its covalent right?
Answer:
Covalent
Explanation:
A general clue that a compound is covalent is two nonmetallic elements bonded together. There is the sharing of electrons but no transfer or formation of ions like there is in ionic bonding.
why organic compounds have a slow rate of reaction
Answer:
first help me plz plz
Explanation:
coz i hate chemistry
5. Name the compound which contain Strontium, Fluorine, and Oxygen.
Options:
Strontium fluorate
Strontium fluoride
Strontium chlorate
Strontium fluorine
Which formula equation shows a reversible reaction? 2 Upper N a + Upper F Subscript 2 Baseline right arrow 2 Upper N a Upper F. Upper C a Upper C Upper O Subscript 3 Baseline right arrow Upper C a Upper O + Upper C Upper O Subscript 2. Upper N Upper H Subscript 4 Baseline Upper C l (s) double-pointed arrow Upper N Upper H Subscript 3 Baseline (g) + Upper H Upper C l (g). 2 Upper H Subscript 2 Baseline Upper O Subscript 2 Baseline (a q) right arrow with n above it 2 Upper H Subscript 2 Baseline Upper O (l) + Upper O Subscript 2 Baseline (g).
Answer:
NH₄Cl ⇄ NH₃ + HCl
Explanation:
The formula equation shows a reversible reaction is:
NH₄Cl(s) ⇄ NH₃(g) + HCl(g)
Classification of reactions according to their reversibilityReversible reactions: They occur in both senses, as denoted by a double arrow.Irreversible reactions: They occur in one sense, as denoted by a single arrow.Let's consider which formula equation shows a reversible reaction.
2 Na + F₂ ⇒ 2 NaFThe single arrow indicates that this is an irreversible reaction.
CaCO₃ ⇒ CaO + CO₂The single arrow indicates that this is an irreversible reaction.
NH₄Cl(s) ⇄ NH₃(g) + HCl(g)The double arrow indicates that this is a reversible reaction.
2 H₂O₂(aq) ⇒ 2 H₂O(l) + O₂(g)The single arrow indicates that this is an irreversible reaction.
The formula equation shows a reversible reaction is:
NH₄Cl(s) ⇄ NH₃(g) + HCl(g)
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Help please. ASAP.
1. Explain how you think changing in the thickness or length of the nail will affect the strength of the electromagnet
Answer:
I believe- If there is more metal for the magnet to reach for, then the strength will grow but it may be harder to pick up off of a surface depending on the weight of the nail. If it is a light nail, it would be more efficient for a quick result in having the magnet to pick it up
Explanation:
Answer:
Ferromagnetic materials make the magnet stronger than non-ferromagnetic materials like paper, wood, or air. A wider nail will make the magnet stronger. Making the nail longer will not make the magnet stronger, unless you also add more turns to the coil.
Explanation:
I hope this helps!!
Consider the reaction.
Upper H subscript 2 upper o (g) plus upper C l subscript 2 upper O (g) double-headed arrow 2 upper H upper C l upper O (g).
At equilibrium, the concentrations of the different species are as follows.
[H2O] = 0.077 M
[Cl2O] = 0.077 M
[HClO] = 0.023 M
What is the equilibrium constant for the reaction at this temperature?
0.089
0.26
3.9
11
Answer:
The value of Equilibrium constant for the given reaction is 0.089
Explanation:
The given data shows the following reaction
H2O (g) + Cl2O (g) ⇄ 2 HClO (g)
The above reaction is in equilibrium.
Equilibrium constant K = [tex]\frac{[C]^c*[D]^d}{[A]^a*[B]^b}[/tex]
for the reaction
aA+bB ⇆ cC +dD
so
K = [tex]\frac{[HClO]^2}{[H2O][Cl2O]}[/tex]
= [tex]\frac{[0.023]^2}{[0.077][0.077]}[/tex] = 23*23/77*77 = 0.089
Therefore the value of Equilibrium constant for the given reaction is 0.089
Answer:
The value of Equilibrium constant for the given reaction is 0.089
what particle joins or bonds atoms to form a compound or molecule
(?)Li2O + (?)H2O → (?)LiOH
what goes inside the question marks?
Answer:
(1)Li2O + (1)H2O → (2)LiOH
Hope this helps!
HELP!! PLEASE 10+ points!
Can you tell from the masses of the reactants which one of the reactants will be the limiting reactant? Defend your answer (use an equation within your defense).
Answer:
Explanation:
so, limiting reactants are the reactant which limit the continuing of the reaction or in simple word they are the element that run out first and are totally consumed
equation :
2koh+h2so4⇒ k2so4 +2h2o
if we have 4 mol of h2so4 and 3 mol of 2koh
number of produced moles of k2so4 on consuming all :
h2so4 ⇒ k2so4
1 mol 1 mol
4 mol ?mol
no of mol of k2so4 if all h2so4 is consumed 4 mol
2koh⇒ k2so4
2 mol 1 mol
3 mol ?mol
no of mol of k2so4 if we consume all koh = 1.5 mol
since the koh produces less mol on consuming it all
the koh is the limiting reactant
HURRY FAST. It is known that complex carbohydrates provide more sustained energy over time than simple sugars such as sucrose. Complex carbohydrates are polysaccharides, which are long chains of smaller sugar molecules bonded together. Simple sugars are monosaccharides that contain only one molecule. Why do complex carbohydrates provide more energy over time versus simple carbohydrates? Complex carbohydrates have more chemical bonds to break than simple sugars, which takes longer for the body to digest and provides more units of energy for the body to use. Complex carbohydrates have bonds that contain more thermal energy than those in simple carbohydrates, which is released when they go through the digestive process. Complex carbohydrates provide Calories for the body while simple carbohydrates provide calories. Calories are bigger than calories and provide more energy. Complex carbohydrates take less energy to digest, which means that the body does not spend all of its calories digesting the food. This saves calories for the body to use later.
Answer:
Complex carbohydrates have more chemical bonds to break than simple sugars, which takes longer for the body to digest and provides more units of energy for the body to use.
Explanation:
Complex carbohydrates contain longer chains of sugar molecules than simple carbohydrates. The body converts these sugar molecules into glucose, which it uses for energy. As complex carbohydrates have longer chains, they take longer to break down and provide more lasting energy in the body than simple carbohydrates.
Answer
The answer is A if you want it simplifited.
from the guy above
What is the order of decreasing reactivity of these 4 metals?
Answer:
Ca, Mg, Zn, Cu
Explanation:
Refer to the Reactivity Series where each metal is more reactive than others.
What percent of a human cell is made of macromolecules?
Answer:
About 70 percent. I hope this helps :)
Non examples of chemical change
List some please
Answer:
Crushing a can.
Melting an ice cube.
Boiling water.
Mixing sand and water.
Breaking a glass.
Dissolving sugar and water.
Shredding paper.
Chopping wood.
Some non-examples of the chemical reaction should be boiling water, glass breaking out, etc.
Chemical reaction
It is a process where one or more substances that we know as reactants should be transformed into one or more distinct substances that we know as products. Here the substances should be treated as the elements of chemicals or the compounds.Chemical reactions are an integral part of technology, culture, and indeed of life itself. Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Chemical reactions abound in the geology of Earth, in the atmosphere and oceans, and in a vast array of complicated processes that occur in all living systems.Therefore, Some non-examples of the chemical reaction should be boiling water, glass breaking out, etc.
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Which of the following causes a physical change in the shape of an object?
A. Using a wire to conduct electricity
B. Heating a piece of iron until it glows
C. Placing a penny in acid to make it shiny
D. Sharpening the tip of a pencil
please helppp
Answer:
B
Explanation:
Heating a piece of iron until it glows.
Heating a piece of iron until it glows causes a physical change in the shape of an object. Therefore, option B is correct.
What is physical change ?The term physical change is define as a type of change where the physical properties of matter change. In physical change, composition and chemical nature of matter does not change.
It involves in change in physical properties. The examples of physical changes are textural change, shape, size, color, volume and density.
Heating a piece of iron until it glows causes a physical change in the shape of an object, because it involves physical property. The changes in which only physical properties of substances are changed, and no new substance is formed
Thus, option B is correct.
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What is the formula for nitrogen monoxide?
O N203
O NO
O N₂O,
O None of the answers are correct
Which of the following is the best way to model the process of weathering?
Using a fan on a pile of sand causing the sand to move into a pile in a new location.
Using a ramp to dump sand at the bottom causing the sand to pile up.
Using a watering can sprinkle water onto sand causing the sand to move to a new location.
Filling a glass bottle with water and allowing it to freeze causing the bottle to break.
The best model of weathering is using a fan on a pile of sand causing the sand to move into a pile in a new location.
Weathering refers to the gradual breakdown of a rock due to the agents of denudation. The agents of denudation could be physical, chemical or biological.
The breakdown of rocks leads to the formation of soil. The closest model to the weathering of rock is using a fan on a pile of sand causing the sand to move into a pile in a new location.
The pile represents the rock which is being broken down as the fan blows the pile and it settles on a new location.
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All atoms, isotopes, and ions of Magnesium have the same...
atomic number
mass number
all of the above
charge
Answer:
option A: Atomic number
Explanation:
The atoms, isotopes and ions of magnesium doesn't change the atomic number of the magnesium.
For example, Isotopes are atoms that have the same number of protons but at the same time have different numbers of neutrons. This means that atomic number remains the same while mass number differs. Now, an ion is defined as an atom or molecule that has either a positive or negative charge.
So only option A is correct: Atomic number
please answer willl give brainlist !!! Name the noble gases. What are the common properties between them?
Answer: Other characteristics of the noble gases are that they all conduct electricity, fluoresce, are odorless and colorless, and are used in many conditions when a stable element is needed to maintain a safe and constant environment. This chemical series contains helium, neon, argon, krypton, xenon, and radon.
What does the chemical formula show?
a) The number of elements in each molecule
b) The number of atoms in each molecule
c) How heavy the molecule is.
d) The elements in the molecule and the number of atoms of each one .
Answer:
A
Explanation:
You can eliminate C because you need to consult a periodic table to determine the mass (not the weight).
There are other answers you could use. The wording is awfully sloppy. D is an example of that. The elements part is true, the atoms part is not really true in all cases. For example NaCl is table salt and both the elements are ions, not atoms. Na is plus ion and Cl is minus one. B is wrong for the same reason.
I think in the end I would choose A. I think this is a very sly question. It is not really testing chemistry. It is testing how well you know your definitions.
The Tissues of vascular Plants are organized into more complex structures that carry out a Variety of functions in the plant what structure is formed by a Group of tissues that work together to carry out a Specific function
A) Cell
B) Organ system
C)Organism
D Organ
Answer:
D Organ
Explanation:
A group of tissues that work together to carry out a specific function is known as organ.
Life is organized into distinct levels. These organization makes it possible for certain cells which are the basic unit of life to carry out their respective function.
A group of cell that performs the same function are organized into tissues. A group of tissues that work together to carryout a specific function are known as organs. A group of organs that perform the same functions forms the organ systems.
As the complexity of an organism increases, so also is their organization of life.
Keep a chart of your observations. You may even want to draw what you see. What do you observe? What does this tell you about the density of the liquids and the objects you put into them?
Answer: The density of a liquid determines whether it will float on or sink in another liquid. A liquid will float if it is less dense than the liquid it is placed in. A liquid will sink if it is more dense than the liquid it is placed in.
Explanation: I hope that helped!!
what should the charge be for calcium and fluoride ions?
what would happen if the
attractive forces between all of the particles
of matter on Earth were equal?
The magnitude of attractive forces between particles that compose matter determine the state of matter. Hence, if all particles of matter on earth have equal attractive forces, only a single state of matter (solid, liquid or gas) will exist on earth.
Matter exists in three states;
SolidLiquidGasIn solids, there exists the greatest magnitude of attractive forces between particles.
There are weaker inter-molecular attractive forces between liquid particles. However, inter molecular attractive forces are almost non-existent in gases.
The reason for the existence of different states of matter on earth is difference in magnitude of inter molecular attractive forces in each state of matter.
If all particles of matter possess equal attractive forces, only one state of matter will be found on earth; either solid, liquid or gas.
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If the solid, liquid, and gas forms of a substance
are made up of the same type of particles, How
could a substance change from one state to
another?
presence of heat can change solid tu liquid
and liquid to gas
A student wants to make a fair comparison of the reactivity of the metals with hydrochloric acid.
Name two variables that must be kept constant.
Answer:
the concentration of the reactants
the temperature in heating
The variable that should be kept constant is the concentration of the reactant and the temperature in heating.
What is hydrochloric acid?Hydrochloric acid (HCl) is called as the muriatic acid represent the colorless corrosive, also the mineral acid should be strong that contains various industrial used also it should be reacted with an organic base it created the hydrochloride salt.
Therefore, we can conclude that The variable that should be kept constant is the concentration of the reactant and the temperature in heating.
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PLEASE HELPPPP! :{
Leandra is performing an investigation. She places one strawberry by the window in the sunlight and another strawberry inside of the refrigerator. Leandra leaves the strawberries for three weeks and observes them. After the three weeks, what observation did Leandra make?
A. The strawberry in the refrigerator rusted faster because it was exposed to less heat.
B. The strawberry by the window rusted faster because it was exposed to more heat.
C. The strawberry in the refrigerator rotted faster because it was exposed to less heat.
D. The strawberry by the window rotted faster because it was exposed to more heat.
What is Constituent Element?
Answer:
hope it helps...
Explanation:
a constituent element, material, etc.; component. a person who authorizes another to act in his or her behalf, as a voter in a district represented by an elected official. Grammar. an element considered as part of a construction. Compare immediate constituent, ultimate constituent.
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Which describes how rubbing fur on a rubber rod makes the rod negatively charged. Select one: A. Electrons move from the fur to the rubber rod. B. Electrons move from the rubber rod to the fur. C. Protons move from the rubber rod to the fur.
Answer:
A
Explanation:
Rubbing fur on a rubber rod results in the rod becoming negatively charged as a result of the movement of electrons from the fur to the rubber rod.
The process is called triboelectric charging. When the two substances are rubbed together, their atoms come into close proximity with each other and their electron clouds interact with the fur losing electrons to the rubber due to the fact that the atoms of the rubber have higher affinities for electrons than the atoms of the fur. Hence, the fur becomes positively charged while the rubber becomes negatively charged.
The repeating subunits that are responsible for the chance of a crystal are know as
unit cells
heavy nuclei
light electrons
amorphous cells