Answers
Answer:
I got B a little while back, but the answer might be different for you
sorry if i am wrong
Explanation:
The chemical equation which is not properly classified is CO₂ + 2 H₂O[tex]\rightarrow[/tex] CH₄ + 2 O₂ as this is not combustion reaction.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
Learn more about chemical equation,here:
https://brainly.com/question/28294176
#SPJ2
Related Questions
Which of the following is NOT an example of a chemical reaction?
A. a candle burning forming carbon dioxide
B. sodium and chlorine forming salt
C. a marshmallow releasing carbon when burned
D. ice turning into water
Answers
Because that is a change of state which is a physical change not a chemical change
:)
A hydrochloric acid solution contains 36 percent HCl by mass. Calculate its
molality
Answers
M=moles of solution / kilograms of solvent
Mass %= (mass solute/mass solution)x100%
Assume 100g of solution
Find moles of solute
Mass solute = (mass %/100%)mass solution
=(36%/100)100g=36 gHCL
36 gHCL 1 mol HCL/36.458 gHCL= 0.987molHCL
36% HCL by mass 100 g solution
36g HCL 0.987Mol HCL
Molarity=moles solute/kg solvent
Find kg solvent
Mass solution = mass solute + mass solvent
Mass solvent = mass solution - mass solute
= 100 g-36=64 g solvent
64 g solvent = 1 kg solvent/1000 g solvent = 0,064 kg solute
Molarity= molHCL/0.064 kg solvent
=0.987/0.064
=15.42 mHCL
The overall electrical charge on a stable element is_____
Answers
Answer: the answer is 0
Explanation:A stable atom has a net charge of 0. In other words, it has an equal number of protons and electrons. The positive protons cancel out the negative electrons.
(On the verge of tears)
Calculate the final molarity of a 20mL- 1.3M salt solution after it has been diluted with 100ml water. Use M1V1 =M2V2. Round up answer to
the hundredths. Include unit.
Answers
Answer: The final molarity of a 20mL- 1.3M salt solution after it has been diluted with 100ml water is 0.22 M
Explanation:
According to the dilution law,
[tex]M_1V_1=M_2V_2[/tex]
where,
[tex]M_1[/tex] = molarity of stock solution = 1.3 M
[tex]V_1[/tex] = volume of stock solution = 20 ml
[tex]M_1[/tex] = molarity of diluted solution = ?
[tex]V_1[/tex] = volume of diluted solution = (20+100) ml = 120 ml
Putting in the values we get:
[tex]1.3\times 20=M_2\times 120[/tex]
[tex]M_2=0.22M[/tex]
Therefore the final molarity of a 20mL- 1.3M salt solution after it has been diluted with 100ml water is 0.22 M
plz help this was due yesterday butttttt i didn’t want to do it...
Answers
Answer:
I don't get what you want me to do cause n Explano questions showing ation:
what's a vacuum exactly
Answers
Answer:
Vacuum: space in which there is no matter or in which the pressure is so low that any particles in the space do not affect any processes being carried on there It is a condition well below normal atmospheric pressure and is measured in units of pressure (the pascal).-the internet gave me this answer so..
Explanation:
hope this helps :)
Type of introduction
Answers
Answer:
Five Types of Introductions.
“Inquisitive” Explain why your subject is important, curious, or interesting.
“Paradoxical” Explain what aspects of your subject seem improbable. ...
“Corrective” Explain how your subject has been misunderstood or misrepresented by others. ...
Consider the equation for the formation of a kidney stone.
2Na3 PO4 (aq) + 3CaCl2 (aq) =
Ca3(PO4)2 (s) + 6NaCl (aq)
Is each reactant bonded ionically or covalently?
How do you know?
Answers
Answer:
Ionically, because they are ionic compounds
How many moles of aluminum oxide are produced by reacting 54 g of aluminum with oxygen gas?
4Al(s) + 30 2(g) → 24/203(s)
A) 1.0 mol
B) 3.0 mol
C) 4.0 mol
D) 2.0 mol
Answers
Determine the moles of chlorine needed to react with 38.9 of iron (III) chloride.
2 Fe+3 CI, - 2 Feci
Answers
Answer: 0.360 moles
Explanation:
To calculate the moles :
[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]
[tex]\text{Moles of} FeCl_3=\frac{38.9g}{162.2g/mol}=0.240moles[/tex]
The balanced chemical reaction is:
[tex]2Fe+3Cl_2\rightarrow 2FeCl_3[/tex]
According to stoichiometry :
2 moles of require = 3 moles of
Thus 0.240 moles of [tex]FeCl_3[/tex] will require=[tex]\frac{3}{2}\times 0.240=0.360moles[/tex] of [tex]Cl_2[/tex]
Thus 0.360 moles of chlorine needed to react to produce 38.9 of iron (III) chloride.
What is the main difference between weathering and erosion?
Answers
Answer:
Erosion occurs when smaller rock fragments (now pebbles, sand, or soil) are displaced by natural forces. Weathering occurs as a rock is altered or destroyed but remains in place. The displacement of weathered rock fragments is referred to as erosion.
Explanation
This is an example of which type of short-term human-induced environmental change?
Answers
Answer:
The short term human induced environmental changes are pollution and deforestation. The term deforestation can be defined as the cutting down of trees in huge amount. The reason can be cutting down of trees for human settlement. Pollution can be defined as the undesirable in the environment.
A tank containing 5.00 L of nitrogen at 75.0 atm pressure and 28.0 C is left standing in sunlight. Its temperature rises to 50.0C. What is the pressure at this higher temperature?
Answers
Answer:
80.5 atm
Explanation:
First of all, we convert 28.0 °C and 50.0 °C into K:
28.0 + 273.16 = 301.16 K50.0 + 273.16 = 323.16 KTo answer this problem we'll use Gay-Lussac's Law, which states that:
T₁*P₂=T₂*P₁In this case:
T₁ = 301.16 KP₂ = ?T₂ = 323.16 KP₁ = 75.0 atmWe put the data:
301.16 K * P₂ = 323.16 K * 75.0 atmAnd solve for P₂:
P₂ = 80.5 atmThus, the correct answer is 80.5 atm.
How many valence electrons are there in Se atom?
Answers
Answer:
4 valence electrons
Despite the fact that the word silicon has a ubiquitous affiliation with all things electronic, Si itself is not a good electrical conductor. It has 4 valence electrons, meaning that filling its outer shell it can form a very strong lattice with 4 neighboring Si atoms-with no un-bonded electrons remaining
Answer:
The numer of valence electrons is defined as the number of electrons present in the outer most shell of the atom.So, in the case if selenium, there are 6.
Convert 9.5 x 10^23
Answers
Convert it into what?
How many grams of potassium chloride are in 4.25 x 1023 molecules?
Answers
Do a quick conversion: 1 moles Potassium Chloride = 74.5513 gram using the molecular weight calculator and the molar mass of KCl.
In which ways are evaporation and condensation similar?
Both cause decrease in air temperature
Both cause increase in air temperature
Both are caused by the warming of the atmosphere
Both are caused by changes in heat energy
Answers
Answer:
Both are caused by changes in heat energy
Explanation:
When air gets hotter water will evaporate, when air gets cooler water will condensate.
How much force is required to accelerate a 22 kg mass at 6 m/s2?s
Answers
Answer:
F=132k.gm/s^2Explanation:
F=m×af=22k.g×6m/s^2f=132k.gm/s^2Q1 - How would you balance the following equation: N₂ + O₂ N₂O₅
A: N₂ + 5 O₂ N₂O₅
B: 2 N₂ + 5 O₂ 2 N₂O₅
C: N₂ + 5 O₂ N₂2O₅
D: N₂ + O₂ N₂O₅ (already balanced)
Q2 - In the reaction, HCl + NaOH NaCl + H₂O, what is/are the reactant(s)?
A: HCl only
B: HCl and NaOH
C: NaCl only
D: HCl and NaCl
Answers
nswer:
For Q1 its B!
Explanation:
cuz I'm smart dw.
Between what time interval was the object moving the slowest?
Between what time interval was the object moving the fastest
Answers
Answer:
from 1 to 2 hour the object was moving the slowestfrom 4 to 5 hours the object was moving the fastest3) Which element has the lowest electronegativity value?
A) F
B) Fr
C) Cr
D) Cl
Answers
Answer:
ur mom jk i would say fr
Explanation:
why do atoms become anions and cations
Answers
Answer:
Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. ... And all of them form an anion with a single negative charge. The VIA elements gain two electrons to form anions with a 2- charge.
Explanation: OR
Metallic atoms hold some of their electrons relatively loosely. Consequently, they tend to lose electrons and form cations. Conversely, most nonmetallic atoms attract electrons more strongly than metallic atoms, and so gain electrons to form anions.
Metallic atoms hold some of their electrons relatively loosely. Consequently, they tend to lose electrons and form cations. Conversely, most nonmetallic atoms attract electrons more strongly than metallic atoms, and so gain › cat...
_
Answer:
It gains one or more electrons from another atom to become negatively charged.
Explanation:
An atom becomes charged by either gaining or losing electrons, and is called an ion. An atom with less than the normal number of electrons is a positive ion (a cation), and an atom with one or more extra electrons is a negative ion (an anion).
PLEASE HELP ME, EMERGENCY SITUATION (50 points)
207.86 grams of uranium (V) hydroxide reacts with 155.78 grams of thorium disulfate, which is the limiting reactant? You must prove your answer by showing the necessary work and explaining your answer choice.
Answers
Answer:
Thorium disulfate
Explanation:
Thorium also forms insoluble compounds with fluoride, sulfate, ... hydroxide from solutions of pH 3.6 or above. ... rate should be about 2.5 g/min, and the reaction tube temperature ... thenoyl group decreases the solubility of the reagent in the aqueous
If you can solve both
Will mark brainly
ASAP
Answers
Answer:
The main function sis the 2nd one and the substance provides the first 1.
Explanation:
Hope you finish the rest on your own, have fun!
Will made a cup of hot tea and placed it on the tableA few minutes later, he picked up the cup and touched the warm table where the cup had been sitting put the cup back in the same place and left the kitchenWhen he returned a few hours later , he noticed the table and the cup felt the same temperature as other Which of these statements best describes the heat flow between the cup and the table?
A The heat flowed from the table to the cup through the process of convection
B The heat flowed from the table to the cup through the process of conduction
C.The heat flowed from the cup to the table through the process of conduction.
D. The heat flowed from the cup to the table through the process of convection
Answers
The reaction between sodium and chlorine that forms table salt is shown
_Na(s) + Cl2 (g) → _NaCl (3)
What coefficient should be added to the blanks to balance the equation?
А.
2
В.
1
2.
2
Answers
Answer: 2 Na (s) + Cl(g) -> 2 NaCl (s)
Explanation:
A bee buzzes inside a flower to drink some nectar. While there it touches the stamen. Later the bee goes to another flower and comes into contact with the flower's pistil. Which process of reproduction is this helping with?
Answers
QUESTION
A bee buzzes inside a flower to drink some nectar. While there it touches the stamen. Later the bee goes to another flower and comes into contact with the flower's pistil. Which process of reproduction is this helping with?
ANSWER
The bee is helping in pollination which is an important event in case of sexual reproduction in flowering plants.
Pollination is a part of pre-fertilisation ( gamete transfer ).
Pollination by insects ( most commonly bees ) is known as Entamophily
- What is the percent yield if your actual yield is 39.78g and your theoretical
yield was 47.84 g?
Answers
1. Which of the following elements have atoms with a full shell of
valence electrons (1 point)
a. Lithium
b. Oxygen
c. Hydrogen
d. Neon
Answers
Answer:
The answer is neon.
Explanation:
Hope this helped Mark BRAINLEST!!!
Which of your recipes was the best?
Trial 1
Trial 2
Trial 3
Why is this your best recipe? What criteria did you meet?
Answers
Answer:
trial 1
Explanation:
trust