Answer:
Ag > Fe > Al
Explanation:
The values of the specific heat capacity of the elements are given as;
Aluminum = 0.897 J/g*K
Iron=0.449 J/g*K
Silver=0.235 J/g*K
Specific heat capacity basically refers to how much heat is required to change the temperature of a unit mass of a substance by a degree. Elements with high specific heat capacity would require higher energy compared to elements with lower values,
Aluminium (Al) has the highest specific heat capacity, hence it wold require more energy to cause a change in temperature. Aluminium would be the lowest.
Silver (Ag) has the lowest specific heat capacity hence it would require less energy to cause a change in temperature. Silver wold be the highest.
The middle would be iron (Fe).
The rank is given as;
Ag > Fe > Al
electronegativities of elements from Period 3 and Group 17. Fill in the missing values in the table so you can compare the electronegativities of the elements. After the table is filled in, compare the values in each column. A = B = C =
Answer:
A = 3.16
B = 1.31
C = 0.93
Explanation:
Where else have you heard the term conservation? How does the term's meaning in that other context relate to its meaning in chemistry? please help me im so confuseddd
Answer:
See the answer below
Explanation:
Conservation is also a topic in Biology and it refers to the practice of managing natural resources - both living and non-living - with the aim of preserving them to secure the future of the human population.
Conservation in Chemistry refers to the property of chemical reactions in which no new matter or energy is created nor destroyed during the course of the reactions, although they can be converted from one form to another.
Conservation in Biology and Chemistry can be likened to each other based on the fact that both deal with preservation. While conservation in Biology focuses on how the ecosystem can be preserved, conservation in Chemistry deals with the preservation of matter/energy.
How can the gravitational potential energy of an object be changed?
Answer:
Gravitational potential energy may be converted to other forms of energy, such as kinetic energy. If we release the mass, gravitational force will do an amount of work equal to mgh on it, thereby increasing its kinetic energy by that same amount (by the work-energy theorem).
Explanation:
which description of salt is a chemical property?
No combustion
Odourless
salty taste
solid does not conduct electricity
Answer: No combustion
Explanation:
The diagram is a model of one way that materials move into a cell.
Which Sentence explains what happens in last step?
A. a vacuole carries particles into the cell
B. The cell membrane surrounds particles outside the cell.
C. Phospholipids in the cell membrane allow particles to pass through
D. Transport proteins push particles out of cell.
Answer:
B. The cell membrane surrounds particles outside the cell.
Explanation:
The last step is when the cell membrane completely surrounds particles outside the cell.
This process is often known as endocytosis.
endocytosis is the process whereby a cell ingests materials by engulfing them using the cell membrane. In this process, the cell membrane completely covers the food.
What type of a solution is 60g NaNO3 at 40°C in
100g H202
Answer:
Explanation:
Saturated solution
A substance has a molecular formula of C8H10N4O2
The empirical formula of a substance = C₄H₅N₂O
Further explanationThe empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
((empirical formula)n=C₈H₁₀N₄O₂
divide by 2 :
(C₄H₅N₂O)₂=C₈H₁₀N₄O₂
if your mass was 200 grams what would your weight be on this planet.
Answer:
200
Explanation:
Explanation:
take your weight times by the amount of newtons in a pound, which is 4.45
then convert newtons into grams.
A beaker contains 318 mL
m
L
of a 5.75 M
M
HCl(aq)
H
C
l
(
a
q
)
solution. Determine the new concentration of the solution after it is diluted by adding 143 mL
m
L
of water to the beaker.
Answer:
3.97 M
Explanation:
Given data:
Initial volume V₁ = 318 mL
Initial molarity M₁ = 5.75 M
New volume V₂= 461 mL
New concentration M₂= ?
Solution:
New volume V₂= 143 mL+ 318 mL
New volume V₂= 461 mL
Formula:
M₁V₁ = M₂V₂
M₂ = M₁V₁ / V₂
M₂ = 5.75 M × 318 mL / 461 mL
M₂ = 1828.5 M. mL/ 461 mL
M₂ = 3.97 M
PLEASE HELP ME!!!
THE CHEM QUESTION IS...
Calculate the amounts of heat required for 25.0 g of water to change from 10°C to 30°C
Answer:
1045
Answer: 1045 J of energy was released on cooling the down the water from 20 °C to 10 °C.
Answer:
..............=2100
5. What do the data in your graphs tell you? Explain in one or two sentences what trend the reader should observe in each of your graphs. (Science Lab Report, if you don't know what the answer is please don't answer-)
Answer:
Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described, and If the data shows pronounced trends or reveals relations between variables, a graph should be used.
Explanation:
literally bro i had the same answer for my actual project for edge
Answer: Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described, and If the data shows pronounced trends or reveals relations between variables, a graph should be used.
Explanation:
Compare the viscosity property of solid and liquid.
Answer
There is nothing like viscosity in solid because most of the solids usually have a rigid body. This is due to strong intermolecular forces. And it is due to this strong force between the molecules that they are unable to move and they remain fixed at their position. Some solids such as graphite which have layered structure, don't possess the property of viscosity, because of the strong force between the layers.
Explanation:
Viscosity is the property of a fluid that opposes the relative motion between two surfaces of the fluid that are moving at different velocities. In simple terms, viscosity means friction between the molecules of fluid.
FOR EXAMPLE
water is "thin", having a low viscosity, while vegetable oil is "thick" having a high viscosity
1+1 = ?
plz say plzplapL
A mixture contains 20% iron ions by mass. What mass of iron chloride (FeCl) would
you need to provide the iron ions in 50 g of the mixture? A of Fe = 56, A of Cl = 35.5.
.
Mass of iron chloride (FeCl₂) : 22.68 g
Further explanationProust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison so that the compound has a fixed composition of elements
In the same compound, although from different sources and formed by different processes, it will still have the same composition/comparison
With this law, we can calculate how many grams an element is needed to make a compound with a certain mass, as desired
[tex]\tt mass~Fe=\dfrac{Ar~Fe}{MW~FeCl_2}\times mass~FeCl_2[/tex]
The iron ions in 50 g mixture :
[tex]\tt 20\%\times 50~g=10~g[/tex]
[tex]\tt 10=\dfrac{56}{127}\times mass~FeCl_2\\\\mass~FeCl_2=22.68~g[/tex]
Please help me and I’ll give you brainiest!!!!!!!!!
Have a wonderful day!!:)))
Answer:
Explanation:
C
How many Joules of heat are needed to melt 3.0 g of ice?
Answer:A substance must absorb heat energy so that it can melt or boil. The temperature of the substance does not change during melting, boiling or freezing - even though energy is still being transferred
Explanation:imm not sure
what are cons of viruses ?????? oh dont mind this i jus gotta get this out of my head dont stop pop tht pop tht mhm jus like tht mhm shake it shake it mhm work it work it!!!!!!!!!!!
Answer:
Viruses can weaken your immune system. They make you sick. Some could even cause death.
Explanation:
I hope this helped I heard that song I forgot the name lol
Heyy, I am a 14 year old girl
Why is our mindset more important when you try to learn remotely than when you are learning face to face?
Answer:
It is more important because of the freedom.
Explanation:
While at home you can do your work of course... but you could lay down, take a nap. You could get on the game, play around. You could draw, and fiddle and dance and do WHATEVER you want with no teacher to stop you so you have to be your own motivation. You have to be your own teacher or its VERY easy to fail.
Which formula represents a tetrahedral molecule?
LiBr
CO2
H₂
SIF4
um this is kinda weird I am take a guest SIF4
The formula that represents a tetrahedral molecule is SiF₄. The correct option is the fourth option - SIF4
From the question,
We are to determine which of the given formulae represents a tetrahedral molecule
In order to determine the molecule that represents a tetrahedral molecule, we will determine which of the molecules has a tetrahedral molecular geometry.
A tetrahedral molecular geometry has a central atom located at the center with four substituents that located at the corners of a tetrahedron
Among the given options, the molecule that has four substituents is SiF₄. Si is the central atom and the F atoms are the substituents.
Hence, the formula that represents a tetrahedral molecule is SiF₄. The correct option is the fourth option - SIF4
Learn more here: https://brainly.com/question/2108211
What does the chemical formula show?
a) The number of elements in each molecule
b) The number of atoms in each molecule
c) How heavy the molecule is.
d) The elements in the molecule and the number of atoms of each one .
Answer:
A
Explanation:
You can eliminate C because you need to consult a periodic table to determine the mass (not the weight).
There are other answers you could use. The wording is awfully sloppy. D is an example of that. The elements part is true, the atoms part is not really true in all cases. For example NaCl is table salt and both the elements are ions, not atoms. Na is plus ion and Cl is minus one. B is wrong for the same reason.
I think in the end I would choose A. I think this is a very sly question. It is not really testing chemistry. It is testing how well you know your definitions.
The lowest allowable energy state of an atom is called its .
HELPP!!! ASAP!!!! BRAINLIEST!!!
Complete the following sentences. Energy is required to _______ bonds in a molecule and released when bonds are _______.
Answer:
Energy is required to break bonds in a molecule and released when bonds are made.
Explanation:
Energy is added to break bonds and released when making bonds.
Two sphericle objects have masses of 8000 KG and 1500 KG their centers are separated by a distance of 1.5 M find the gravitational attraction between them
if I am correct I think its I'm am not 100 percent sure but I think this should be the answer
The gravitational force of attraction between them is 3.56 * 10⁻⁴ N
Using the formula of gravitational attraction
F = G*M1M2/d²
where G = 6.67 * 10⁻¹¹ Nm²Kg⁻²
M1 = 8000Kg
M2 = 1500 Kg
F = 6.67 * 10⁻¹¹ * 8000 * 1500 / (1.5)²
F = 3.56 * 10⁻⁴ N
The gravitational force of attraction between them is 3.56 * 10⁻⁴ N
Learn more at: https://brainly.com/question/19082714
When their is a new moon the sun and moon are on the same side of the earth this leads to a combination of gravitational forces causing usually high tides called
Neap tides
Low tides
Supreme tides
Spring tides
Answer:
Low Tides
Explanation:
Took the test
100%
heyyyyyyy......................
Answer:
helllllooooooo hi how is life
Answer:
hiiii
Explanation:
Ernest Rutherford built on the work of previous scientists and improved the accuracy of the atomic model. What part of the atom is Rutherford
credited for discovering?
A.) The protons
B.) The electrons
C.) The nucleus
D.)The electron cloud
3x - 12 = 7x + 8
-4x - 12 = 8
-4x - 20
X = -5
Answer:
1.Set your equations Raquel to each other
2.given
3.subtract 7x from both sides
4. Add 12 to both sides
5.divide both sides by four and you get negative 5
Explanation:
Why are ions usually formed during the interaction of metal with nonmetal and not between two metals?
Explanation:
Ions are always formed when metals and non-metals interact because metals are electropositive. They willing release electrons to non-metals that are electronegative.
This activity results in charge separation. The transfer of electrons from one specie to another is what results in an ionic bond and the precedence of charged particles.
Between non-metals, the electrons are jointly shared. Therefore, there is no charge separation.
A high school chemistry teacher asks four student groups to determine the number of protons, neutrons, and electrons (respectively) present in an ion of Titanium (Ti 2+). Which student group provides the best answer?
Answer:
Electrons - 20
protons - 22
neutrons - 26
Explanation:
Titanium has an atomic number of 22 indicating that the neutral atom has 22 protons.
Ti 2+ has lost two electrons and contains only 20 electrons, 22 protons.
The mass number of titanium is 48. Hence;
Mass number = atomic number + number of neutrons
Since the atomic number is 22 and the mass number is 48
number of neutrons = 48 - 22 = 26 neutrons