Answer:
jsidndnxjxixdjdbsjsjdidnsjdjdidndjd
Energy of motion is called ________energy *
Answer:
Kinetic - Kinetic energy is the energy of motion
Explanation:
Thermal energy - heat energy
Potential energy - energy that is stored
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Which instrument is used to measure mass?
Answer:
Balance
Explanation:
hope i helped
What type of compound is AIN?
Answer:
aluminum nitride
Explanation:
i think
name a metal that would be magnetic
A certain chemical contains 46.30% chlorine, 47.05% carbon, 6.63% hydrogen. What is the molecular formula of the compound? The molar mass of the compound was determined to be 153.052g/mol.
C6H10CI2
C6H8CI2
C3H5CI
C4H4CI
C8H8CI2
Answer:
C6H10Cl2
Explanation:
Convert mass % to mass
100g of the compound contains from each elements: 46,3g Cl; 47,05g C and 6,63g H
Molar mass
Cl = 35.5 g/mol
C = 12 g/mol
H = 1 g/mol
Find the number of moles:
Chlorine: 46.4g /35.5g/mol = 1,3 moles
Carbon: 47,05g/12 g/mol = 3,92 moles
hydrogen: 6,63g/1g/mol = 6,63 moles
Molar fraction:
Cl = 1,30/ 1,30 = 1
C = 3,92/ 1,30 = 3,01
H = 6,63/ 1.30 = 5,01
C3H5Cl = 76,5 g/ mol x 2 = 153 g/ mol
So multiply the molecular formula by two = C6H10Cl2
what is another name for producer why are they called this
Answer:
Autotrophs
Explanation:
They are responsible for the production of food. Root words "auto" for self and "troph" for food.
If 50.0g of kcl reacts with 50.0 g of 02 to produce KCLO3 according to the following equation, how many grams of kclo3 will be formed
Answer:
Mass = 82.11 g
Explanation:
Given data:
Mass of KCl = 50.0 g
Mass of O₂ = 50.0 g
Mass of KClO₃ produced = ?
Solution:
Chemical equation:
2KCl + 3O₂ → 2KClO₃
Number of moles of KCl:
Number of moles = mass /molar mass
Number of moles = 50.0 g/ 74.5 g/mol
Number of moles = 0.67 mol
Number of moles of O₂:
Number of moles = mass /molar mass
Number of moles = 50.0 g/ 32 g/mol
Number of moles = 1.56 mol
Now we will compare the moles of oxygen and KCl.
O₂ : KClO₃
3 : 2
1.56 : 2/3×1.56 = 1.04 mol
KCl : KClO₃
2 : 2
0.67 : 0.67
Number of moles of KClO₃ formed by KCl are less thus, it will act as limiting reactant.
Mass of KClO₃:
Mass = number of moles × molar mass
Mass = 0.67 mol ×122.55 g/mol
Mass = 82.11 g
Need help balancing equations please.
Answer:
A, 4,3,2
B, 1,1,2
C, 1,1,1,2
A metal ion (X) with a charge of 2+ is attracted to a nonmetal ion (Z) with a charge of 3-.Which formula represents the resulting compound?
Answer:
X₃Z₂
Explanation:
A metal ion (X) with a charge of 2+ = X²⁺
nonmetal ion (Z) with a charge of 3- = Z³⁻
In a neutral compound, the charges but balance each other to remain neutral. However in this case, the charges are not balanced.
A simple way to make the charges balance is by tweaking the number of the ions present in the compound.
We do this by multiplying the metal ion with 3 and the non metal ion by 2.
That way we have;
Metal ion = 3X2⁺ (Total charge - 6⁺)
Non metal ion = 2Z3⁻ (Total charge - 6⁻)
The charges are now balanced. The formular of the compound is;
X₃Z₂
Low, gray, layered clouds that cover the sky and bring steady rain are O A. cumulus O B. cirrus O C. cumulonimbus OD. nimbostratus
Answer:
D Nimbostratus
Explanation:
Calculate the mass of 4 moles of CuCl2.
Pleas help with 2 and 4 for brainliest
mass of pentane : = 30.303 g
moles of Al₂(CO₃)₃ : = 0.147
Further explanationGiven
1. Reaction
C₅H₁₂+8O₂→6H₂O+5CO₂.
45.3 g water
2. 2AlCl₃ + 3MgCO₃ → Al₂(CO₃)₃ + 3MgCl₂
37.2 MgCO₃
Required
mass of pentane
moles of Al₂(CO₃)₃
Solution
1. mol water = 45.3 : 18 g/mol = 2.52
From equation, mol ratio of C₅H₁₂ : H₂O = 1 : 6, so mol pentane :
= 1/6 x mol H₂O
= 1/6 x 2.52
= 0.42
Mass pentane :
= mol x MW
= 0.42 x 72.15 g/mol
= 30.303 g
2. mol MgCO₃ : 37.2 : 84,3139 g/mol = 0.44
mol Al₂(CO₃)₃ :
= 1/3 x mol MgCO₃
= 1/3 x 0.44
= 0.147
how does an airplane’s kinetic energy and potential energy change as it takes off and lands? How does this energy change relate to the law of conservation of energy?
Answer: As the airplane goes higher, the mechanical energy is changed into gravitational potential energy. While flying, some energy is lost through drag to thermal (heat) energy and sound energy. Some is also lost as the plane makes the air around it move. ... As speed and height decrease, kinetic and potential energy decrease.
Explanation:
Hope this help
What are the main organs of the muscular system?
The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture and circulates blood throughout the body.
Answer:
Skeletal, cardiac muscles.
Explanation:
It helps move the body around. Your welcome :)
I'll give brainliest for a legitimate answer
Can someone give me a legitimately good idea for a chem honors project. It's due May or something so no rush at all but like maybe just an idea. It needs to take at least ten hours total. So if you ever had to do one maybe I could get the idea for it? Something nature related. I live in a super nature-y environment so anything to do with analyzing some sort of chemistry in nature, I don't know, I just need an idea. Thanks.
Answer:
I don't know if this is what you are looking for but maybe making paints out of things you find outside??? sry if this isn't what you were looking for
What will be the mass of 9.95 liters of propane gas (C3H8) at STP?
Answer:
19.5g
Explanation:
Given parameters:
Volume of propane gas = 9.95L
Unknown:
Mass of propane gas = ?
Solution:
To solve this problem, find the number of moles first.
At STP;
22.4L of gas makes up 1 mole
9.95L of gas will have a [tex]\frac{9.95}{22.4}[/tex] = 0.44mole
So;
Mass of propane gas = number of moles x molar mass
Molar mass of propane = 3(12) + 8(1) = 44g/mol
Mass = 0.44 x 44 = 19.5g
60\15A=
help help help help help help help help help help
this is just 60 divided by 15, which is 4
so your answer is 4A :)
Answer:
60 divided by 15? That's 4 if that's what you're asking
why do astronauts on the moon seem like they're "Walking on springs" while on earth we are firmly attached to the ground
The citizens of a town are aware of climate change, and they want to make changes to control it. One change they consider is replacing the nearby thermal power plant with a hydroelectric plant. If they want to make sure this change will help to slow climate change, which question should they ask?
Answer: How hydroelectric plant is better over thermal power plant in creating less pollution?
Explanation:
The thermal power plant utilizes the coal as a fuel. The heat energy so produce after burning coal is used for generating electrical energy. The burning of the coal results in the production of pollutants. The carbon dioxide is also a chief pollutant of coal burning. This can pollute the air.
The hydroelectric plant is better than thermal power plant in the sense no fuel is required for this purpose the energy from water currents are used for generating electrical energy.
So, the citizens should research about hydroelectric plant and try to know how it is efficient in providing routine energy supply and impact it exerts on the environment if used as a source of energy generation.
a container with a volume of 2.5L contains air at a pressure of 0.5 atm. if the volume is reduced to 1.5L at constant temperature, what will be the resulting pressure of the air inside
Answer:
Final pressure of the air inside is 0.83atm
Explanation:
Boyle's law is the gas law that relates the change in volume when pressure change at constant temperature and vice versa. The equation is:
P₁V₁ = P₂V₂
Where P is pressure and V is volume of 1, initial state and 2, final state of the gas
Replacing:
P₁ = 0.5atm
V₁ = 2.5L
P₂ = ?
V₂ = 1.5L
P₁V₁ = P₂V₂
0.5atm*2.5L = P₂*1.5L
0.83atm = P₂
Final pressure of the air inside is 0.83atm
help ? if yk the answer ? please help k
Answer:
1: X and Y
2: A
Explanation:
If I have one mole of sulfur, how many grams would it weigh?
Answer:
32.06 grams
Explanation:
One mole of sulfur is equal to 32.06 grams of sulfur.
Answer:ok
Explanatio
heres the answer 32.065 grams because 1 mole is equal to 1 moles Sulfur
Although chemical digestion occurs throughout the digestive system, it mostly occurs in the A esophagus and stomach
B
liver and gall bladder
C
liver and pancreas
D
stomach and intestines
help me pleeeeeeeaaaaassseeeeee
Answer:
okay
Explanation:
I can help u u can ask question .....
15. In complete sentences, describe how electronegativity is related to polarity.
Explanation:
The absolute value of the difference in electronegativity (ΔEN) of two bonded atoms provides a rough measure of the polarity to be expected in the bond and, thus, the bond type. When the difference is very small or zero, the bond is covalent and nonpolar. When it is large, the bond is polar covalent or ionic.
Electrons in a polar covalent bond are shifted toward the more electronegative atom; thus, the more electronegative atom is the one with the partial negative charge. The greater the difference in electronegativity, the more polarized the electron distribution and the larger the partial charges of the atoms.
Answer:
The person above me is correct. Electronegativity relates to polarity by describing the attraction of electrons for an element. For example, Fluorine is most electronegative, so it has a high polarity. Polarity means a charge of hogging electrons. So yeah. There you go.
Explanation:
how many grams of NH3 can be prepared from 77.3 grams of N2 and 24.2 grams of H2?
Answer:
how many grams of NH3 can be prepared from 77.3 grams of N2 and 24.2 grams of H2?
=80.4 g
Explanation:
I think.
What is the temperature change that 725 g of aluminum will undergo when 2.35 x 104
J of thermal energy are added to it?
Answer:
36°C
Explanation:
Given parameters:
Mass of aluminum = 725g
Quantity of heat = 2.35 x 10⁴J
Unknown:
Temperature change = ?
Solution:
To solve this problem, we simply use the expression below:
The quantity of energy is given as:
Q = m C Δt
Q is the quantity of energy
m is the mass
C is the specific heat capacity of aluminum = 0.9J/g°C
Δt is the change in temperature
The unknown is Δt;
Δt = [tex]\frac{Q}{mc}[/tex] = [tex]\frac{2.35 x 10^{4} }{725 x 0.9}[/tex] = 36°C
Which of the following is true about homogeneous mixtures?
They consist of two or more phases; They are always liquids; They are known as solutions; They have compositions that never vary
Answer:
Option 3: They are known as solutions
Explanation:
Examples of homogenous mixtures include:
soapy watertea or coffee that's breweda mixture of water and alcoholbloodairquartznitrogenI hope this helps :)
How much light would be absorbed by the different drinks?
Drink A would absorb more light than Drink B.
How is agriculture depended on industries
Answer:
The interdependence of agriculture and industry helps the development of both the sectors. The most important aspect of this inter dependence is that the products of one serve as important inputs for the other. Growth of one sector, thus means ample supply of inputs for the other.
Explanation: