Answer:
2.59g
Explanation:
Using Avagadro's law equation as follows:
V1/n1 = V2/n2
Where;
V1 = initial volume (litres)
V2 = final volume (litres)
n1 = first amount of gas in grams
n2 = second amount of gas in grams
According to the information provided in this question, v1 = 93.2L, v2 = 10.4L, n1 = 23.2 g, n2 = ?
Using V1/n1 = V2/n2
93.2/23.2 = 10.4/n2
Cross multiply
93.2 × n2 = 23.2 × 10.4
93.2n2 = 241.28
n2 = 241.28/93.2
n2 = 2.588
n2 = 2.59g
The mass of the gas is 2.59g that occupies a volume of 10.4 L under the same conditions.
Avogadro's law equation:V₁/n₁ = V₂/n₂
Where
V₁ = initial volume (litres)
V₂ = final volume (litres)
n₁ = first amount of gas in grams
n₂ = second amount of gas in grams
Given:
V₁ = 93.2L,
V₂ = 10.4L,
n₁ = 23.2 g,
To find:
n₂ = ?
On substituting the values:
93.2/23.2 = 10.4/n₂
93.2 * n₂ = 23.2 * 10.4
93.2* n₂ = 241.28
n₂ = 241.28/93.2
n₂ = 2.588
n₂ = 2.59g
Thus, the mass of the gas is 2.59g.
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what is the formula for carbon decabromide?
Answer:
CBr4
Explanation:
Answer:
CBr4
Explanation:
It is CBr4 I hope it helps
State the name of the ion which is oxidised in the following half equations. Cathode: Na+ + e– → Na Anode: 2Cl– → Cl2 + 2e–
Answer:
hahahahhahhhahahaha
Explanation:
haahahahahhahahhaha
True or false: All molecules or atoms in a substance have the same amount of kinetic energy at a given temperature?
Answer:
1
False. if they all moved together at any time then it would be a million things withinthe human species all at once at a high rate
a student is trying to classify an unidentified, solid gray material as a metal or a non metal. which question will best help the student classify the material?
F. Is the material malleable or ductile?
G. Does the material feel hard to the touch?
H. Will the material float in water?
J. Does the material feel rough or smooth?
Answer:
i think the answer is f as metals are malleable and ductile
Answer:
F
Explanation: Most metals carry the trait that they are malleable and ductile.
A compound and oxidant react to produce heat and a new product is what reaction
Answer:
A compound and oxidant react to produce heat and new product is chemical reaction.
blank a long narrow Stepside value that forms the deepest part of the ocean
Answer:
The answer is a trench
i really need help, this is important to me, if not i get my harry styles tickets taken away and if that happens my life is over lol, i’m not saying it for sympathy i just REALLY need help
Explanation:
First Question
Group 18 elements. This is because the noble elements do not conduct electricity.
Second Question
Chewing in the mouth breaks food into small pieces
Third Question
How many atoms of each element are present in the molecule?
7 carbon atoms, 14 Hydrogen atoms and 1 oxygen atom
6CO2 + 6H20 → C,H120, + 602
6. How many molecules of CO2 are presenta
7. How many atoms of oxygen are present in the reactants?
8. How many atoms of carbon are present in the products
9. How many total atoms are present in C.H120,?
10. Is the equation above balanced or unbalanced?
Explanation:
The equation of the reaction is given as;
6CO2 + 6H2O → C6H12O6 + 6O2
How many molecules of CO2 are present?
6 moles
How many atoms of oxygen are present in the reactants?
(6 * 2) + (6 * 1 ) = 12 + 6 = 18
How many atoms of carbon are present in the products?
(6 * 1 ) = 6
How many total atoms are present in C6H12O6?
6 + 12 + 6 = 24 atoms
Is the equation above balanced or unbalanced?
This is a balanced equation since the number of atoms of the elements is the same in the reactant and products.
True or False: The amount of water has and will always remain about the same?
Answer:
In the world? I would say no, but at the same time there are a lot of variables to consider in this. But I'd say no. Just my opinion.
Explanation
Answer:
False the amount of water on earth has decreased over the years
Explanation:
Which statement is not
true?
A. The troposphere is responsible for nearly
all of Earth’s weather.
B. The exosphere reaches deep into space
and is the least dense layer.
C. The thermosphere typically breaks up
meteors before they hit Earth.
D. The stratosphere allows commercial
airlines to fly with less turbulence because
of fewer convection currents.
The atmosphere of the earth is layered and each layer of the atmosphere has its own properties. The atmosphere of the earth is divided into four layers. The thermosphere typically breaks up meteors before they hit Earth is not correct. The correct option is C.
What is mesosphere?The four important layers of atmosphere are troposphere, stratosphere, thermosphere and mesosphere. The layer of the atmosphere which is found above the stratosphere is defined as the mesosphere. It is the coldest layer of the atmosphere.
A meteor is known as a celestial object which is made up of rocks and minerals which enters the atmosphere of the earth and burns out completely before reaching the surface of the earth. It is known as the shooting star or falling star.
The temperature of mesosphere drops with altitude. By 80 km it reaches 100 degree celsius. The meteors burn up in this layer not in thermosphere.
Thus the correct option is C.
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Hi! I need some help with this pleaseeee!!
When two objects of different temperatures are placed in contact with one another, eventually: (choose one option from below)
a) both their average kinetic energy and temperature will be the same
b) their average kinetic energy will be the same
c) neither their average kinetic energy and temperature will be the same
d) their temperature will be the same
A horse weighs 240 kg. If its running at a speed of 18 m/s, what's the linear momentum of the horse
Answer: The answer is 4320
Explanation:
I got the answer correct
how does reactants in photosynthesis combine to make atoms molecules
Answer:
hope this helps
Explanation:
Photosynthesis
Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek phos, "light", and sunthesis "putting together". In most cases, oxygen is also released as a waste product. Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth.
The diagram shows a pedigree for a recessive inherited trait. If H represents the dominant allele and h represents the recessive allele what are the genptypes of the parents shown in the pedigree.
Answer:
Hh
Explanation:
if you have a dominant allele and a recessive allele they'd be different (heterozygous)
If H represents the dominant allele and h represents the recessive allele, Hh is the genotypes of the parents shown in the pedigree.
What is genotypes?The type of variation present at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolize it. For illustration, BB, Bb, and bb might be employed to denote a certain gene variant.
The actual DNA sequence, such as CC, CT, or TT, can also serve as a representation of a genotype. In a single experiment, the genotypes spanning millions of sites in a genome can be determined using DNA sequencing as well as other techniques. If H represents the dominant allele and h represents the recessive allele, Hh is the genotypes of the parents shown in the pedigree.
Therefore, Hh is the genotypes of the parents shown in the pedigree.
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Which type of bonding forms due to electrical attractions between oppositely charged elements
Answer:
Explanation:
Ionic bond
Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
Fe2O3 (s) + 2 Al (s) ---> 3 Fe (l) + Al2O3 (s) Based on the thermite reaction, how much aluminum oxide (Al2O3) is formed from 8.0 grams of aluminum (Al)?
Answer:
15.3 g
Explanation:
Fe₂O₃ (s) + 2Al (s) → 3Fe (l) + Al₂O₃ (s)First we convert 8.0 grams of aluminum into moles, using its molar mass:
8.0 g Al ÷ 27 g/mol = 0.30 mol AlThen we convert 0.30 moles of aluminum into moles of aluminum oxide, using the stoichiometric coefficients:
0.30 mol Al * [tex]\frac{1molAl_2O_3}{2molAl}[/tex] = 0.15 mol Al₂O₃Finally we convert 0.15 moles of Al₂O₃ into grams, using its molar mass:
0.15 mol Al₂O₃ * 102 g/mol = 15.3 g Al₂O₃Chlorine atom
10. What does the following equation represent; 2KMnO4 -> K2MnO4 + MnO2(s)
+ O2(g) ?*
A. Oxygen turned in to carbon dioxide
B. Sulphate and lithium boiled
C. Decomposition of potassium permanganate(Heating)
D. None of the above
Answer:
C. Decomposition of potassium permanganate(Heating)
Explanation:
The equation of the reaction is given as;
2KMnO4 -> K2MnO4 + MnO2(s) + O2(g)
Reactant = 2KMnO4
Products = K2MnO4 + MnO2(s) + O2(g)
A. Oxygen turned in to carbon dioxide
Incorrect option - Oxygen is not the reactant
B. Sulphate and lithium boiled
Incorrect option - Sulphate and lithium are not part of this reaction
C. Decomposition of potassium permanganate(Heating)
Correct option - potassium permanganate decomposed to form K2MnO4 + MnO2(s) + O2(g)
D. None of the above
Incorrect option
Single-celled organisms need a microscope to be seen...
O True
O False
Answer:
True
Explanation:
Microscope is an instrument which is used to observe small objects. There are many types of microscope with a different magnitude.
Find the volume of 2.40 moles of gas whose temperature is 50.0°C and whose pressure is 2.00 atm.
What are bacteria? Chapter 7 lesson 2 AYU
Answer:
a group of unicellular microorganisms
Answer:
bacteria are a type of biological cell,they constitute a large domain of prokaryotic microorganisms,single celled. The cells are all prokaryotic . This means they do not have a nucleus or any other structures which are surrounded by membranes . ... Bacteria also have small, closed-circles of DNA called plasmids present in their cytoplasm
Explanation:
A 30.0 mL aliquot of 0.0250 M HCl solution is titrated using 0.0500 M NaOH.
A) determine the volume of NaOH necessary and the pH at the equivalence point.
B) Determine the pH of the solution after 160.00 mL base is added.
Answer:
xdyd jdkdudktvko?ñhixiskrsjdjuxguxhicjovyx bhfoggu vohudixiyd siydyoxoyxyoxyixhoxiyxys ztiziyxyoxoyzyizitztixtx no se
hkgkfu
Explanation:
iyxyx yo gkxtuztizyidtiztizigxigxkhxhk. jvkgxitxoyfihciyxyixihxoyxyodyidtistusdtidti lo siento
If I touch a hot object, my hand gets hot through which type of heat transfer?
Answer:
Thermal Transfer.
Explanation:
If you touch a hot object, the heat is transferred from the object to your hand through conduction. (This is the actual answer.)
Humans become part of the carbon cycle when they
A. breathe in carbon dioxide,
B. release carbon as a waste product,
C. produce new carbon compounds in their cells,
Answer:
Human activities have a tremendous impact on the carbon cycle
Explanation:
Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.
The equation for the complete combustion of ethene (C 2 H 4 ) is C 2 H 4 + 3O 2 2CO 2 + 2H 2 O If 2.70 mol of C 2 H 4 reacted with 6.30 mol , O 2 a. Identify the limiting reagent. b. Calculate the moles of water produced .
Answer:
22
Explanation:
2 HCl (9)
=H2(g) + Cl2 (9)
K = [H][CI]/[HCI)
UK = [H][CI]/2[HCI]
K = 2[HC]/[H]CI.)
K = [HCI)?/[H][1]
Answer:
(K) = [H2] [Cl2] / [HCl]²
Explanation:
The equation of the reaction is given as;
2 HCl (g) ⇔ H2 (g) + Cl2 (g)
The Equilibrium constant is the ratio of the concentration of the products and reactants raised to the power of their coefficients
Products = H2 and Cl2
Reactants = HCl
Equilibrium constant (K) = [H2] [Cl2] / [HCl]²
What must be happening to the forces of attraction between particles when a change of state occurs?
Answer:
The particles need energy to overcome the attractions between them. As the liquid gets warmer more particles have sufficient energy to escape from the liquid. Eventually even particles in the middle of the liquid form bubbles of gas in the liquid.
On the periodic table, in which period is copper?
Answer:
At the top of Group 11 above silver and gold.
Period 4
Explanation:
When thermal energy is removed from matter, what happens to the molecules?
Answer:
Figure it out.
Explanation:
Question: why do astronauts wear organge suits vs white suits
Full answer please..
A 12.0 g sample of O2gas is inside a rigid, metal container with a volume of 5.00 L at 3.00 atm of pressure. What is the temperature of the gas?