Answer:
2 ch3oh(l) + 3 o2(g)
Explanation:
because they are at the beginning and they are what are being changed.
In the given chemical reaction: [tex]\rm 2 CH_3OH(l) + 3 O_2(g) \rightarrow 2 CO_2(g) + 4 H_2O(g)[/tex], the reactants are [tex]\rm CH_3OH[/tex] and [tex]\rm O_2[/tex], respectively.
Reactants are the starting materials or substances that are consumed in a chemical reaction to produce new products.
The reaction is a combustion reaction, where a fuel (in this case, methanol) reacts with oxygen gas to produce carbon dioxide and water vapor.
[tex]\rm 2 CH_3OH(l) + 3 O_2(g) \rightarrow 2 CO_2(g) + 4 H_2O(g)[/tex]
The starting molecules (reactants) in this reaction is [tex]\rm CH_3OH[/tex] and [tex]\rm O_2[/tex], which reacts to produce [tex]\rm 2 CO_2(g)\ and\ \4 H_2O(g)[/tex] as the final product.
Therefore, [tex]\rm CH_3OH[/tex] and [tex]\rm O_2[/tex] are the reactants in the given chemical reaction, respectively.
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Identify the state(s) of matter that each property describes.
takes the shape of its container:
gas
liquid
solid
fills all available space:
gas
liquid
solid
maintains its shape:
gas
liquid
solid
can be poured:
gas
liquid
solid
is compressible:
gas
liquid
solid
has a fixed volume:
gas
liquid
solid
Answer:
See below!
Explanation:
Gases and liquids take the shape of the container.
A gas fills all available space.
A solid maintains its shape.
A liquid can be poured.
A gas is compressible.
A liquid and solid have fixed volumes.
Identification of the state(s) of matter that each property describes.
The Gas and liquid takes the shape of the container.A gas fills all available space.A solid maintains its shape.A liquid can be poured.A gas is compressible.A liquid and solid have fixed volumes.Difference between properties of solid, liquid and gas?Solids liquids Gases
Rigidity Highly rigid Less rigid Not rigid
Shape Difinite Acquires shape Acquires shape
of the container. of the container.
Volume Difinite Difinite Indifinite
Compressibility Not Slightly Highly
compressible compressible compressible
Fluidity Can not flow Can flow Can flow
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g is the maximum number of grams of ammonia, NH , which can be obtained from the reaction of 10.0 g of H and 80.0 g of N
Answer:
56.67 g of NH₃.
Explanation:
We'll begin by writing the balanced equation for the reaction. This is given below:
N₂ + 3H₂ —> 2NH₃
Next, we shall determine the masses of N₂ and H₂ that reacted and the mass of NH₃ produced from the balanced equation. This is illustrated below:
Molar mass of N₂ = 14 × 2 = 28 g/mol
Mass of N₂ from the balanced equation = 1 × 28 = 28 g
Molar mass of H₂ = 1 × 2 = 2 g/mol
Mass of H₂ from the balanced equation = 3 × 2 = 6 g
Molar mass of NH₃ = 14 + (3×1) = 14 + 3 = 17 g/mol
Mass of NH₃ from the balanced equation = 2 × 17 = 34 g
SUMMARY:
From the balanced equation above,
28 g of N₂ reacted with 6 g of H₂ to produce 34 g of NH₃
Next, we shall determine the limiting reactant. This can be obtained as follow:
From the balanced equation above,
28 g of N₂ reacted with 6 g of H₂.
Therefore, 80 g of N₂ will react with = (80 × 6)/28 = 17.14 g of H₂.
We can see from the calculation made above that a higher mass (i.e 17.14 g) of H₂ than what was given (i.e 10 g) is required to react completely with 80 g of N₂. Thus, H₂ is the limiting reactant and N₂ is the excess reactant.
Finally, we shall determine the maximum mass of ammonia (NH₃) produced from the reaction.
To obtain the maximum mass of NH₃, the limiting reactant will be used because all of it is consumed in the reaction.
The limiting reactant is H₂ and the maximum mass of NH₃ can be obtained as follow:
From the balanced equation above,
6 g of H₂ reacted to produce 34 g of NH₃.
Therefore, 10 g of H₂ will react to produce = (10 × 34)/6 = 56.67 g of NH₃.
Therefore, 56.67 g of NH₃ is produced from the reaction.
CO2 + H2O → C6H12O2 + O2
In a chemical equation, such as the one for photosynthesis above, which is thec
correct order of terms from left to right?
Products, Yield, Reactants
There is no correct order, any order is acceptable.
O Yield, Reactants, Products
Answer:
B
Explanation:
Answer:
bExplanation:
Ask BRIA
Water vapor
Liquid water
Which of the following labels should be added to all of the black arrows in the above
illustration?
O temperature increases
O temperature decreases
heat removed
O heat added
Answer:
o temperature increases
Anybody know how I can get the answers from a Y o u t u b e video that’s an hour and 54 mins long without actually watching it?
NEED HELP ASAP!!!!!!
What would be the three amino acids that correspond to the mRNA sequence: GGACACCCG
Question 1 options:
arg, ser, pro
glu, pro, his
gly, his, pro *********
pro, his, pro
Consider a cup of hot tea, a cup of juice at room temperature, and a cup of ice water. Which beverage has the highest average kinetic energy?
Question 2 options:
A)
All liquids have the same average kinetic energy.
B)
A cup of hot tea
C)
A cup of ice water
D)
A cup of juice at room temperature
Answer:
I’m guessing a Or c
Explanation:
Answer:
B)
A cup of hot tea
Explanation:
Because temperature of hot tea is higher than others
And kinetic energy is directly proportional to temperature.
Formation of a new substance is a sign of a
change.
A)
Physical
B)
Chemical
Kinetic
D)
Electrical
Which of the following elements has the smallest ionic radius?
Why is The Law of Conservation of Matter a law and not a theory? will brainlist
Will a paper airplane with longer wings fly farther than shorter wings? IV DV Hypothesis
Answer: yes
Explanation:
longer wing
The molar mass of a compound is equal to which of the following?
Group of answer choices
the sum of the number of protons in the compound
the sum of the atomic numbers of the elements
the sum of the number of electrons in the compound
the sum of the atomic masses of the elements
Answer:
the sum of the atomic masses of the elements
Relative and average atomic mass both describe properties of an element related to its different isotopes. Out of these two Relative atomic mas is more accurate. Therefore, the correct option is option D.
What is mass?Mass defines the quantity of a substance. It is measured in gram or kilogram. Average mass is the mass of atoms of an element that are isotopes. It can be calculated by multiplying mass of a isotope to natural abundance of that isotope.
The relative mass is the mass that is with respect to mass of a matter that is considered as standard. In chemistry relative mass is equal to the mass of one-twelfth the mass of C-12 isotope .
Out of relative and average atomic mass, relative atomic mass is more accurate as it is calculated with respect to a standard quantity. Molar mass is mass of 1 mole of a compound. Molar mass is the sum of the atomic masses of the elements.
Therefore, the correct option is option D.
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Hypothetical element X has 3 stable isotopes. The relative peak intensities are 79.52 for 180.0 u, 100.0 for 184.0 u, and 82.98 for 186.0 u. What is the average atomic mass for X
Answer:
The relative atomic mass of X is 183.4
Explanation:
The relative atomic mass of an element is the weighted average of the masses of the isotopes using the carbon-12 atom has a mass of exactly 12 units as as a standard.
The relative sizes of the peaks gives a direct measure of the relative abundances of the isotopes. The tallest peak is often given an arbitrary height of 100 and is known as the base peak.
To calculate the relative atomic mass of the element X which has 3 stable isotopes with the relative peak intensities as given below:
79.52 for 180.0 u, 100.0 for 184.0 u, and 82.98 for 186.0 u, the sum of the products of the relative peak intensity of each isotope and their isotopic mass is divided by the sum of the peak intensities.
Relative atomic mass of X = (79.52 × 180) + (100 × 184.0) + (82.98 × 186)/(79.52 + 100 + 82.98)
Relative atomic mass of X = (14313.6 + 18400 + 15434.28)/(262.5)
Relative atomic mass of X = 48147.88/262.5 = 183.4
Therefore, the relative atomic mass of X is 183.4
The average atomic mass of element X has been 183.42 amu.
The average atomic mass of the element has been given with the abundance and the atomic mass of the isotopes present.
The average atomic mass (amu) has been given as:
[tex]amu=\dfrac{(am\;\times\; \rm \% abundance)_1\;+\;(\textit am\;\times\;\% abundance)_2\;+\;(\textit am\;\times\;\% abundance)_3}{\sum abundance}[/tex]
Where, atomic mass and abundance of isotope 1, has been [tex](am\;\times\; \rm \% abundance)_1=(79.52\;\times\;180)\;\rm u[/tex]
The atomic mass and abundance of isotope 2, has been [tex](am\;\times\; \rm \% abundance)_2=(100\;\times\;184)\;\rm u[/tex]
The atomic mass and abundance of isotope 3, has been
[tex](am\;\times\; \rm \% abundance)_3=(82.98\;\times\;186)\;\rm u[/tex]
The sum of abundance, has been, [tex]\sum abundance=79.52\;+\;100\;+\;82.98[/tex]
Substituting the values for calculating amu:
[tex]\\amu=\dfrac{(79.52\;\times\;180)\;+\;(100\;\times\;184)\;+\;(82.98\;\times\;186)\;amu}{79.52\;+\;100\;+\;82.98} \\amu=\dfrac{14,313.6\;+\;18,400\;+\;15,434.28}{262.5} \\amu=183.42[/tex]
The average atomic mass of element X has been 183.42 amu.
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Which family of elements always forms ions with a charge of -1 in compounds ?
Answer:
halogens
Explanation:
Answer:
halogens
Explanation:
PLEASE MARK ME AS BRAINLIEST
what is the cause of desertification
A. Farming
B. Creating reservoirs
C. Overgrazing
D. Driving motor vehicles
Answer:
C overgrazing is the answer
Answer:
yeah he got it right
Explanation:
it's C
it is a property of a substance that is independent of amount and used to identify substance?
Answer:
Some properties, such as solubility, melting point, boiling point, and density are independent of the amount of substance being examined. These properties are known as intensive properties and are used to identify a substance. The density of a substance is defined as the mass per unit volume.
Explanation:
A selenide ion is isoelectronic with which noble gas?
a argon
b xenon
C radon
d krypton
Help ASAP please
Answer:
the correct answer is D which is krypton
Distance with respect to time
Answer: okay
Explanation:
Answer:
sure
Explanation:
This diagram is of an amniote egg.
What is the correct label for A in this diagram?
embryo
zygote
amnion
placenta
Answer:
amnion
Explanation:
Answer: amnion
Explanation:
A sample of nitrous Oxide has a volume of 1 £.20 at 1500 mm HG and -10°C. Calculators pressure when it’s value is compressed 250 L and its temperature increase to 34°c
Answer:
nitric acid will be if you get you will pixel purpose
HELP HELP HELP! NOW ANSWER THE IMGAGE'S 50POINTS!
[tex]\rule{100}{3}[/tex]
Multicellular Plants and animals have organs with specific function.
Which structures do eukaryotic cells have for performing functions?
Ans:-
Organelles
[tex]\rule{100}{3}[/tex]
Which process takes place with in mitochondria?
Ans:-
Cellular Respiration
Answer:
The ribosomes on the rough endoplasmic reticulum (ER) use the RNA to create different types of proteins needed by the body. These proteins are then modified, packaged, and transported by the endomembrane system, which includes organelles such as the Golgi apparatus and lysosomes
The very top layer of Earth is the crust, which is relatively quite thin when compared to the other layers of Earth. Which of these best describes the composition of Earths crust?
Group of answer choices
Rocky
Gaseous
Liquid
Metallic
PLEASEEEE HELP MEEEEEEEEEEEEEEEEEEE
Answer:
D
Explanation:
Answer:
Girl it's "D"
Explanation:
describe what happens in each stage of mitosis
Answer:
Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. ... These phases occur in strict sequential order, and cytokinesis - the process of dividing the cell contents to make two new cells - starts in anaphase or telophase. Stages of mitosis: prophase, metaphase, anaphase, telophase.
Explanation:
What is the final volume, in milliliters, when 5.80 mL of 25.0 %(m/v) NaOH solution is diluted to give a 3.50 %(m/v) NaOH solution.
Answer:
41.43 mL
Explanation:
First we calculate the mass of NaOH in the original solution:
25.0 % m/v means that in 100 mL of solution, there are 25 grams of NaOH.This means that in 5.80 mL, we would have (5.80 * 25/100) 1.45 grams of NaOH.Then we calculate the volume of the diluted solution, using the grams of NaOH (that remain the same throughout the dilution process):
1.45 g NaOH * [tex]\frac{100 mL}{3.50gNaOH}[/tex] = 41.43 mLCan someone please help me I've searched all over and can't find these answers Ive uploaded 3 images too make it easier on you I too a photo of part E to help with part F please help all I need is answers too part D and F I will give brainiest
Answer:
Hey.
Explanation:
I will paste my explanation in the comments because apparently my answer has inappropriate words
WHAT BLOCK IN THE PICTURE HAS:
The highest density? The lowest density?
How do you know?
Answer:
the highest is "A" and the lower is "C"
Why might one type of cell have more mitochondria than another type of cell?
Answer:
Some cells have more mitochondria than others. Your fat cells have many mitochondria because they store a lot of energy. Muscle cells have many mitochondria, which allows them to respond quickly to the need for doing work.
Balance the following:
C₂ + B → B₂C₂
Ag₄ + SO₂ → AgO + S₂
Answer:
The balanced reactions are:
C₂ + 2B → B₂C₂
Ag₄ + 2SO₂ → 4AgO + S₂
Explanation:
The Law of Conservation of Matter postulates that "the mass is not created or destroyed, only transformed." This means that the reagents interact with each other and form new products with physical and chemical properties different from those of the reagents because the atoms of the substances are ordered differently. But the amount of matter or mass before and after a transformation (chemical reaction) is always the same, that is, the quantities of the masses involved in a given reaction must be constant at all times, not changing in their proportions when the reaction ends. In other words, then the mass before the chemical reaction is equal to the mass after the reaction.
In other words, the law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.
Then, you must balance the chemical equation. For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts .
The coefficients located in front of each molecule indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.
By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.
You have:
C₂ + B → B₂C₂
Left side: 2 C and 1 B.
Right side: 2 C and 2 B.
Carbon C is balanced since you have the same amount of the element on each side of the reaction, but boron B is not balanced. So, balancing the reaction:
C₂ + 2B → B₂C₂
Left side: 2 C and 2 B.
Right side: 2 C and 2 B.
Now you have the same amount of each element on each side of the reaction, so the reaction is balanced.
Now you have:
Ag₄ + SO₂ → AgO + S₂
Left side: 4 Ag, 1 S and 2 O.
Right side: 1 Ag, 2 S and 1 O.
Balancing the Ag:
Ag₄ + SO₂ → 4AgO + S₂
Left side: 4 Ag, 1 S and 2 O.
Right side: 4 Ag, 2 S and 4 O.
Balancing the O:
Ag₄ + 2SO₂ → 4AgO + S₂
Left side: 4 Ag, 2 S and 4 O.
Right side: 4 Ag, 2 S and 4 O.
You have the same amount of each element on each side of the reaction, so the reaction is balanced.
Mercury completes one orbit around the Sun in 68 days.
a. True
b. False
Answer:
true :PP
Explanation:
how many protons does manganese-55 have
Answer:
25
Explanation:
