Answer:
406 KExplanation:
To convert a temperature from degree Celsius to Kelvin add 273 to the value in degree Celsius
That's
K = 273 + °C
where
K is the temperature in Kelvin
°C is the temperature in degree Celsius
From the question we have
K = 273 + 133
We have the final answer as
406 KHope this helps you
Determine the pressure change when a constant volume of gas at 1.00 atm is
heated from 293 Kelvin to 303 Kelvin
Hurry please
Answer:
P₂ = 1.03 atm
Explanation:
Given data:
Initial pressure = 1.00 atm
Initial temperature = 293 K
Final temperature = 303 K
Final pressure = ?
Solution:
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.
Mathematical relationship:
P₁/T₁ = P₂/T₂
Now we will put the values in formula:
1.00 atm / 293 K = P₂/303 K
P₂ = 1.00 atm × 303 K / 293 K
P₂ = 303 atm. K /293 K
P₂ = 1.03 atm
What might happen if you mixed a strong acid with an equally strong base?
Question 4 options:
You would wind up with a pH neutral salt and water
The base would destroy the acid.
You would see an explosive chemical reaction.
The acid would destroy the base.
Answer:You'd wind up with a pH-neutral substance.
Electron configuration
Answer:
In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. This is also useful for describing the chemical bonds that hold atoms together.
How many moles are in 1.80g of N2?
Answer:
28.0134
Explanation:
Answer:
Explanation:
n=m/Mr
Molar mass =2(14)
n=1.80/28
n= 0.064
HELP PLEASE DUE SOON!!!
calculate the following the correct amount of significant figures 1.25+3.69277+125.993
Answer: 129.93577
Explanation:
There-
Electrolysis of water occurs according to the following equation...
2H20 ->2H2+O2
If electrolysis is performed with 100% efficiency on 100 grams of water. How many grams of hydrogen gas will be produced?
a. 11 grams
b. 50 grams
c. 4 grams
d. 100 grams
Answer:
11.1g
Explanation:
Given parameters:
Mass of water = 100g
Unknown:
Mass of hydrogen gas = ?
Solution:
We need to write the balanced reaction equation first and solve from the known to the unknown;
2H₂O → 2H₂ + O₂
Now, find the number of moles of the given specie;
Number of moles of H₂O = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of H₂O = 2(1) + 16 = 18g/mol
Number of moles = [tex]\frac{100}{18}[/tex] = 5.56mol
2 mole of water produced 2 mole of hydrogen gas;
5.56 mole of water will produce 5.56 mole of hydrogen gas
Mass of hydrogen gas = number of moles x molar mass
molar mass = 2(1) = 2g/mol
Mass of hydrogen gas = 2(5.56) = 11.1g
The density of aluminum is 2.70 g/cm^3? How many aluminum atoms are in a block of aluminum
with a volume of 114.2 cm^3?
Answer:
68.77×10²³ atoms
Explanation:
Given data:
Density of Al = 2.70 g/cm³
Volume of Al block = 114.2 cm³
Number of atoms of Al = ?
Solution:
First of all we will determine the mass of Al.
D = m/v
2.70 g/cm³ = m/114.2 cm³
m = 2.70 g/cm³ × 114.2 cm³
m = 308.34 g
Now we will calculate the number of moles of Al.
Number of moles = mass/molar mass
Number of moles = 308.34 g/27 g/mol
Number of moles = 11.42 mol
Number of atoms of Al:
1 mole = 6.022×10²³ atoms
11.42 mol × 6.022×10²³ atoms/1 mol
68.77×10²³ atoms
What element am I?
1 valence electrons, 1 energy level
Group of answer choices
H
He
Li
Be
Answer:
H- hydrogen
Explanation: Hydrogen is in the first group meaning that it only has 1 valence electron and 1 energy level
Which equation is balanced?
Answer:Liquid A: 0.358 g/ml
Liquid B: 0.605 g/ml
Liquid C: 1.677 g/ml
Explanation:
Liquid A: 0.358 g/ml
Liquid B: 0.605 g/ml
Liquid C: 1.677 g/ml
Can someone help me please ? Click the picture
Answer:
Because it lose detectable mass.
Explanation:
Law of conservation of mass states that substances involved in chemical reaction do not lose or gain any mass. So the above reactions don't demonstrate the law of conservation of mass because it lose mass
What are the six physical properties and 2 chemical properties of this image?
Please Help!!!
Answer:
physical - cloth
tree
brick
chair
lights
glass
chemical- fuel
fire
Explanation:
Explain why BH3 is trigonal planar and NH3 is trigonal pyramidal.
Answer:o It is important to realise that mixing will be small unless there are electrons in the 4a1 LUMO, this is why NH3 is pyramidal while BH3 is planar! ... This mixing is very strong and stabilises the 3a1 MO substantially and hence NH3 is trigonal pyramidal and not planar.
Explanation:
Can light move through space even though there are no molecules?
Answer:
This means that waves need a medium to propagate, but light waves propagate where no particles are present. ...
Explain how fossil evidence is evidence of plate tectonics.
Answer:
Answer
Explanation:
Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed. ... This distribution of fossils led to theories that the southern continents were once joined in a supercontinent called Gondwana.
Answer: Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed.
Explanation: I hoped that helped plzz mark as brainliest !!
What type of heat transfer happens when warm air in
your living rises from the heater to the ceiling?
1. Radiation 2. Conduction 3. Convection
Answer:
the answer is radiation
is this correct? please check
Answer:
A is the correct option
Explanation:
batteries have chemical energy and will convert to electricity and when reached to bulb, it emits light as electromagnetic rays
Can you provide an example for both fission and fusion
What happens when the thermal energy of a substance increases?
The motion of the particles in the substance increases, and the temperature of the substance decreases.
The motion of the particles in the substance decreases, and the temperature of the substance increases.
Both the motion of the particles in the substance and the temperature of the substance decrease.
Both the motion of the particles in the substance and the temperature of the substance increase.
Please answer fast
Answer:
D
Explanation:
D: Both the motion of the particles in the substance and the temperature of the substance increase.
I Hope That This Helps!!!
Both the motion of the particles in the substance and the temperature of the substance increase.
Thermal energy is the energy that is generated and measured by heat.Thermal energy cannot be converted to useful work as easily as the energy of systems that are not in states of thermodynamic equilibrium.As the thermal energy of a substance increases, both the motion of the particles in the substance and the temperature of the substance increase.For more information:
https://brainly.com/question/18989562?referrer=searchResults
Iron reacts with oxygen gas to produce iron (III) oxide. If there are 52 grams of
iron present in this reaction how many grams of iron (III) oxide are produced
assuming a 100% yield? Also how many liters of oxygen are needed assuming
STP conditions?
Mass of Fe₂O₃ : 74.26 g
Volume of O₂ at STP = 15.624 L
Further explanationReaction
4Fe (s) + 3O₂ (g) ==> 2Fe₂O₃ (s)
mol Fe :
Ar Fe = 56 g/mol
[tex]\tt \dfrac{52}{56}=0.93[/tex]
mol Fe₂O₃ :
[tex]\tt \dfrac{2}{4}\times 0.93=0.465[/tex]
mass Fe₂O₃ :
MW Fe₂O₃ : 159,69 g/mol
[tex]\tt 0.465\times 159,69=74.26~g[/tex]
mol O₂ :
[tex]\tt \dfrac{3}{4}\times 0.93=0.6975[/tex]
volume O₂ at STP(1 mol=22.4 L)
[tex]\tt 0.6975\times 22.4=15.624~L[/tex]
What 2 elements are in the same group?
Oxygen and Chlorine
Sodium and Chlorine
Hydrogen and Sodium
Calcium and Helium
Explanation:
hydrogen and sodium are in same froup
0.22g of carbon dioxide are dissolved in 400 cm3 of pure water.
Calculate the concentration in mol/dm3 of the
solution produced.
Answer:
0.0125mol/dm³
Explanation:
Given parameters:
Mass of carbon dioxide = 0.22g
Volume of water = 400cm³
Unknown:
Concentration in mol/dm³ = ?
Solution:
Concentration is the amount of solute dissolved in a solvent.
The formula is expressed as;
Concentration = [tex]\frac{number of moles}{volume}[/tex]
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of CO₂ = 12 + 3(16) = 44g/mol
Number of moles = [tex]\frac{0.22}{44}[/tex] = 0.0005mol
Now,
1000cm³ = 1dm³
400cm³ = [tex]\frac{400}{1000}[/tex] = 0.4dm³
Insert the parameters and solve;
Concentration = [tex]\frac{0.005}{0.4}[/tex] = 0.0125mol/dm³
In the process of cooking, making tea, or mixing paint, you combined substances. Sometimes, the act of mixing substances results in the formation of new substances.
If two substances mix and one or more new substances form, a chemical change has occurred. Which event do you think results in a chemical change?
A.
Oil and vinegar mix to make salad dressing.
B.
Copper and zinc mix to make brass.
C.
Salt and water mix to make salt water.
D.
Sugar and water mix to make sugar water.
Answer:
B.
Copper and zinc mix to make brass.
Explanation:
This is the only answer in which a new substance is created, the rest of the choices are just mixtures
Who uses Ionic compounds?
Answer:
scientists
Explanation:
I NEED HELP ASAP ! : /
What is the name of the following compound?
CAH₂0?
What is the name of the following compound SO2?
What is the name of the following compound P2F3?
1.calcium monohydroxid
2.sulfur dioxide
3.sry don't know
why doesn't she want me
Answer:
Who knows...
Explanation:
:( :( :( :( :(
what is the molecular formula of water
Answer:
your very f,k,n, d,u,m,b
Explanation:
Answer:
H2o
Explanation:
Water (chemical formula: H2O) is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms. As a chemical compound, a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds.
In which of the three states of matter are the particles moving at the greatest speed?
Answer:
Gas(this is because we are only considering that there are 3 states of matter, while in reality there are 5.)
Explanation:
There are actually 4 states of matter excluding a 5th one that has just been discovered, but if we consider that there are only 3 states of matter then the particles move the fastest in gases. As the particles are the furthest apart.
6. What is the wavelength, in nm, associated with a photon of energy of 4.36 x 10-18 J? (4.56 x 101 nm)
The numbers in parenthesis is the answer that the teacher gave but I on't know how to get there. Help please!
Answer:
Explanation:
h= e/v
6.022 x 10^23 = 4.36 x 10^-18/ v
v= 6.58 x 10^15
C= lambda x frequency
3.00 x 10^8= 6.58 x 10^15 x lambda
lambda (y)= 4.56 x 10^-8
Answer:
Explanation:
λ = hc/E
6.626 x 10^-34 J-s x 2.998 x 10^8 m-s^-1
4.36 x 10^-18 J
= 4556.13486239
= 4.56 x 10^1 nm
What would be the result on the Insect population if the Bats and Mice were removed?
Answer:
We wouldn't have Coronavirus
Explanation:
It takes of heat to raise the temperature of Object A by , and to raise the temperature of Object B by . Suppose A and B are brought into contact. A is initially hotter. A is seen to cool down by . How would you calculate the rise in temperature of B? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols.
Hi, the given question is incomplete, the complete question is:
It takes 4.37 J of heat to raise the temperature of Object A by 1°C, and 2.88 J to raise the temperature of Object B by 1°C. Suppose A and B are brought into contact. A is initially hotter. A is seen to cool down by 6.3°C . How would you calculate the rise in temperature of B?
Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols.
Answer:
The correct answer is 9.56 degree C.
Explanation:
Based on the given information, the given object A is initially hotter than object B, and the direct contact between them permits the transfer of heat between them. Based on the law of conservation of energy, the energy cannot be created nor be destroyed. In the given case, the energy, which is lost from object A can only be gained by object B.
Let us consider that both the objects exhibits equal mass, now in order to determine the transfer of energy between them there is a need to multiply the heat capacity with the temperatures. Therefore,
Energy lost by object A = Energy gained by object B
Heat capacity of object A × Temperature lost by object A = Heat capacity of object B × Temperature gained by object B
4.37 J/°C × 6.3 °C = 2.88 J × Tb
Tb = (4.37 J/°C × 6.3° C) / 2.88 J
Tb = 9.56 °C