Answer:
See explanation
Explanation:
In different products, different properties are desired based on the intended use of the final product.
The properties of the final product depends highly on the properties of the materials from which it was made.
For instance, when we desire a light weight product which is corrosion resistant and maintains a high tensile strength, we may consider the use of composite materials since they exhibit such properties.
Hence, the producer must consider the properties of each particular material before it is used in a product.
Colin decided to investigate soil erosion by water. He measured rates of erosion on
model hills made of soil, rock, and sand. Which of the following was the test
(independent) variable?
Answer:
i just had a test on this with 2 attempts and got it wrong on both but i do know that the answer is not...
the steepness of the models hillside
or
the rate of erosion on the hills
so the answer is either...
the amount of water sprayed on the hills
or
the type of material used to construct the model hills
but i think its the amount of water sprayed on the hills...i hope i helped a lil ;)
Explanation:
What happends when you put m&ms in warm water for 2-3 minutes
Answer:
The m & m logo floats off of it. Its a fun experiment. I did it before
Explanation:
Hope that helped
formation of ionic bond is affected by
Answer:
Ionization energy, electronegativity, and lattice energy are the factors that influence the formation of ionic bonds of elements.
When we look at a plant we notice that the leaves are green this is due to the
Actually If you look very close to a plant you see this:
And to answer your question leaves are green due to sun nutrients water and im not sure what else
What type of substance do these statements describe?
- It is a long chain.
- It contains carbon, hydrogen, and oxygen atoms.
- It has double bonds.
- It is insoluble in water.
- It is used for energy storage in living things.
carbohydrate
lipid
monosaccharide
protein
Answer:
lipid
Explanation:
I just know the answer i don't really have a explanation sorry
Answer:
lipid
Explanation:
edge 2021
What controls the movement of material between the inside of the cell and the outside world?
Group of answer choices
Nucleus
Cell membrane
Cytoplasm
Vacouoles
Answer:
Cell membrane
Explanation:
The double bonds in an aromatic ring are not fixed in position as in an alkene. The electrons are considered to be ____ and are delocalized around the ring.
Answer: The double bonds in an aromatic ring are not fixed in position as in an alkene. The electrons are considered to be in conjugation and are delocalized around the ring.
Explanation:
Chemical compounds that have conjugated planar ring systems where there are delocalized pi-electron clouds are present in place of individual alternate and single bonds.
This means that electrons present in a double bond of alkene are in conjugation.
Therefore, we can conclude that the double bonds in an aromatic ring are not fixed in position as in an alkene. The electrons are considered to be in conjugation and are delocalized around the ring.
Answer:
In resonance
Explanation:
Got it right on Acellus.
Write a balanced equation for the complete combustion of propane gas, C3H8, with
oxygen, O2, to form carbon dioxide, CO2, and water, H2O?
Answer:
Explanation:
Balancing Carbon atoms on the right side,
Balancing Hydrogen atoms on the right side,
Balancing Oxygen atoms on the left side,
The reactants are on the left side of the reaction:
Propane and oxygen are the reactants.
The products are on the right side of the reaction:
Carbon dioxide and water are the products.
forgive me if im incorrect or leaving things out
Which body systems is your blood a part of? Your answer
A student makes observations about a piece of copper. Which
observation describes a chemical property of the copper? (*hint: anything
relating to "measurements" of something is a physical property) *
A. it has a mass of 63.546 grams
B. corrosion occurs when it is exposed to air
C. it has a density of 8.96 g/cm^3
Answer: b
Explanation:
Science, please help and thank you!!
Will award brainliest! Between which two ionization energies would you expect to see the biggest jump for calcium? A. 11-12
B. 12-13
C. 13-14
D. 14-15
answer:lettter B that is answer
Location closer to the
equator receives less energy
from the sun.
True or false
Answer: true
Explanation:
Hope this helps
Please help with q2
A) Vinegar is an Acid solution while, Ammonia is a basic solution, so when they react they form a neutral solution,
Therefore this is a neutralization reaction
B) The lower the pH value of a solution, the more acidic it is, and vise versa for basic,
In the table Vinegar has the lowest pH value, of 3. Therefore Vinegar is the most acidic in the table
C) The higher the pH value of a solution, the more basic it is
In the table Ammonia has the highest pH value of 12. Therefore Ammonia is the most basic in the table
Happy to help :)
If you need any more help, you can ask me
Which ion concentration does the pH scale measure? How long is the scale?
Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide
Answer:
hope this help by the way found off of yahoo
Explanation:
Calculate the number of grams of nitrogen dioxide that are produced from
4 moles of nitric oxide.
2NO(g) + O2(g) -->2NO2(g)
I really need help with this... I need to know how to work it too... I can balance it out but not sure about grams... This is it balanced out with 4 moles of nitric oxide
4NO(g) + 2O2(g) ->4NO2(g) please help and explain i want to learn this
please ive been stuck on this one forever
Answer:
Melting-Solid-Liquid-Added
Freezing-Liquid-Solid-Removed
Vapourization-Liquid-Gas-Added
Condensation-Gas-Liquid-Removed
Sublimation-Solid-Gas-Added
Deposition-Gas-Solid-Removed
Explanation:
Calculate the number of moles in 85.0 g of carbon tetrafluoride (CFA).
Show Your Work
what element is A??????
If 95 grams of Iron are needed to react with sulfur, how many grams of sulfur are involved in this reaction?
2 Fe + 3 S=Fe2S3
Answer:
82 g S
Explanation:
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 81.6 grams of sulfur are involved in this reaction.
What is mole?The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.
2 Fe + 3 S[tex]\rightarrow[/tex]Fe[tex]_2[/tex]S[tex]_3[/tex]
mass of iron = 95 grams
Molar mass of iron=55.8450 g/mol
number of moles of iron =Given mass÷ Molar mass of iron
number of moles of iron=95÷ 55.8
number of moles of iron=1.70 moles
The mole ratio between iron and sulfur is 2:3
moles of sulfur = (3/2) moles of iron
moles of sulfur = (3/2)×1.70
moles of sulfur=2.55 moles
Mass of sulfur= number of moles of sulfur× Molar mass of sulfur
=2.55× 32
=81.6g
Therefore, 81.6 grams of sulfur are involved in this reaction.
To know more about mole, here:
https://brainly.com/question/15209553
#SPJ2
Through photosynthesis, plants use the energy in sunlight to convert water and
carbon dioxide into sugar and oxygen. Has a chemical or physical change occurred?
Explain your answer.
Answer:
chemical change occured
Which type of a reaction is best represented by the equation - AB + CD → AD + BC?
Answer:
AB + CD → AD + BC
Explanation:
This is a double displacement reaction. It is also known as precipitation reaction.
If 2 moles of salt is dissolved to form 1 liter of solution, what is the molarity of the solution?
Answer:
2M
Explanation:
Molarity refers to the molar concentration of a solution. It can be calculated by using the formula as follows:
Molarity (M) = number of moles (n) ÷ volume (V)
Based on the information provided in this question, 2 moles of salt is dissolved to form 1 liter of solution. This means that n = 2mol, V = 1L
Molarity = n/V
Molarity = 2/1
Molarity = 2M
ASAP!!!
As current flows through a system, what happens to the voltage available at each load?
Answer:
The relationship between Voltage, Current and Resistance forms the basis of Ohm's law. In a linear circuit of fixed resistance, if we increase the voltage, the current goes up, and similarly, if we decrease the voltage, the current goes down.
yo fm on ig chs_luucy. ill give u brainleist .
Answer:
this is a homework app, not a tell people to follow your ig app
Explanation:
A sample of methane gas, CH4, occupies 3.25 L at temperature of 19.0 o C. If the pressure is held constant, what will be the temperature be if the volume expands to 10.00 L?
Answer:
625.46 °C
Explanation:
We'll begin by converting 19 °C to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
T(°C) = 19 °C
T(K) = 19 °C + 273
T(K) = 292 K
Next, we shall determine the Final temperature. This can be obtained as follow:
Initial volume (V₁) = 3.25 L
Initial temperature (T₁) = 292 K
Final volume (V₂) = 10 L
Final temperature (T₂) =?
V₁/T₁ = V₂/T₂
3.25 / 292 = 10 / T₂
Cross multiply
3.25 × T₂ = 292 × 10
3.25 × T₂ = 2920
Divide both side by 3.25
T₂ = 2920 / 3.25
T₂ = 898.46 K
Finally, we shall convert 898.46 K to celsius temperature. This can be obtained as follow:
T(°C) = T(K) – 273
T(K) = 898.46 K
T(°C) = 898.46 – 273
T(°C) = 625.46 °C
Therefore the final temperature of the gas is 625.46 °C
What is the relationship between atmospheric
pressure and vapor pressure at the boiling point of
a liquid?
a. The atmospheric pressure is equal to the
vapor pressure at the boiling point.
b. The atmospheric pressure is less than the
vapor pressure at the boiling point.
C. The atmospheric pressure is greater than
the vapor pressure at the boiling point.
d. Both Band C are correct.
Which of the following lines from the story indicates a flashback?
I have to re ask this but pls help me I don't have a lot of time
Answer:a
Explanation:
Answer:
Hello there!
If i'm doing this correctly it is A (125 g).
Hope that helped, if I wasn't correct feel free to tell me.
Have a great day!
Different substances have....
A.the same properties
B. different properties
C.similar properties
D.all properties
Answer:
Different properties
Explanation:
They are different.
Describe a sodium (Na) atom and a chlorine (Cl) atom
Answer:
Both in group 1
Explanation:
Sodium is a very reactive metal
Chlorine is a very reactive non metal
Both have one Valence electron