Answer: Yes- Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur. Rusting is an example of a chemical change. A chemical property describes the ability of a substance to undergo a specific chemical change. A chemical property of iron is that it is capable of combining with oxygen to form iron oxide, the chemical name of rust.
Hope this helps.... Stay safe and have a Merry Christmas!!!!!!!!!!!! :D
Which process describes the wearing
away of rock?
A. drainage
B. erosion
C. infiltration
D. weathering
Answer:
weathering
Explanation:
hope this helps
What is a way in which nuclear fusion is used?
Answer:It is a nuclear process, where energy is produced by smashing together light atoms. It is the opposite reaction of fission, where heavy isotopes are split apart.
Explanation Fusion is the process by which the sun and other stars generate light and heat.
It’s most easily achieved on Earth by combining two isotopes of hydrogen: deuterium and tritium. Hydrogen is the lightest of all the elements, being made up of a single proton and a electron. Deuterium has an extra neutron in its nucleus; it can replace one of the hydrogen atoms in H20 to make what is called “heavy water.”
Condensation point and freezing point of argon in KELVIN.
Answer:
Condensation: 423.3 K
Freezing: 83.96 K
(this is all i could figure out :) hope it helps)
PPLLLSSSSSSS HELLLPPP!!!!! What is runoff?
Answer:
runoff is he draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.
Explanation:
What is the correct name for the compound whose formula is Na2SO4?
A
disodium sulfate
В.
sodium sulfoxide
С.
sodium sulfate
D
sodium sulfite
Answer:
C.
Explanation:
The correct name of the compound whose chemical formula is Na₂SO₄ is sodium sulfate.
What is chemical formula?Chemical formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols of elements. It also makes use of brackets and subscripts.
Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form is called empirical formula.
It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.
There are four types of chemical formula:
1)empirical formula
2) structural formula
3)condensed formula
4)molecular formula
Learn more about chemical formula,here:
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A gas-filled balloon having a volume of 1.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the final volume of the balloon.
Answer: The final volume of the balloon is 335.6 L
Explanation:
To calculate the final volume of the balloon, we use the equation given by combined gas law:
[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]
where,
[tex]P_1[/tex] = Initial pressure = 1.2 atm
[tex]P_2[/tex] = Final pressure = [tex]3.00\times 10^{-3}[/tex] atm
[tex]V_1[/tex] = Initial volume = 1.00 L
[tex]V_2[/tex] = Final volume = ?
[tex]T_1[/tex] = Initial temperature = [tex]25^oC=[25+273]=298K[/tex]
[tex]T_2[/tex] = Final temperature = [tex]-23^oC=[-23+273]=250K[/tex]
Putting values in above equation, we get:
[tex]\frac{1.2atm\times 1.00L}{298K}=\frac{3.00\times 10^{-3}atm\times V_2}{250K}\\\\V_2=\frac{1.2\times 1.00\times 250}{298\times 3.00\times 10^{-3}}\\\\V_2=335.6L[/tex]
Hence, the final volume of the balloon is 335.6 L
URENT URENT URENT HELP PLEASE
Answer:
its D.
Explanation:
Which of the following would cause the seasons on Earth to change more gradually?
A Increasing the amount of time it takes Earth to orbit the Sun.
B Increasing the number of times Earth rotates on its axis per year.
C Decreasing the speed of the Moon’s orbit around Earth.
D Decreasing the amount of energy the Sun emits per year.
Answer: The four seasons happen because of the tilt of the Earth's axis. At different times of the year, the sun's rays hit different parts of the globe more directly. The angle of the Earth's axis tilts the Northern Hemisphere towards the sun during the summer.
Explanation: I am not gonna tell u what exactly to pick but this should give an idea okai? Hope I can help u :)
Answer:
so whats the answer?
Explanation:
Las Vegas Raiders' running back Josh Jacobs is 72 inches tall and has mass of 100 kg. Los
Angeles Rams' defensive tackle Aaron Donald is also 72 inches tall but has a mass of 130
kg. Josh runs the ball East, towards the goal line, quickly traveling 50 yards in
5.5 seconds. Josh then accelerates towards the goal line at 9 m/s2. Aaron accelerates
West, the exact opposite direction, towards Josh at 6.5 m/s2. They both meet with an
explosive collision at the 1 yard line.
In a paragraph, address the following questions. Calculate numerical answers to the
nearest hundredth and correct units must be included.
1. What is Josh Jacobs' speed?
II. What is Josh Jacobs' velocity?
III. How much force does Josh Jacobs create?
IV. How much force does Aaron Donald create?
V. By calculating the net force, does Josh Jacobs score the touchdown.
Explain why or why not?
Answer:
Josh is running at a speed of 9.09 yards per second.
Josh's velocity is 9.09 East.
Josh's force is 900 N.
Aaron Donald's force is 845 N.
Yes Josh scores the touchdown because he is faster and has more mass than Donald.
Explanation:
Josh scores the touchdown as he is heavier and faster than Donald.
Formulas are:
Force= mass x acceleration
Speed= distance divided by time.
Velocity= distance divided by time.
Which model best represents a pattern?
Antenne UHF
Chaum
RTG
Master
Antenne
grand gain
DAN
REMS
RAD
SAM
Chemin
How much work is required to pull a sled if you use 60J of work in 5 seconds?
Answer:
DO I Look Like santa too you how am i supposed to know How about this how about you goo.gle the answer wow smart
Explanation:
How many valence electrons does this atom have? (Urgent)
Answer:
It only has 7 valence electrons because there are seven electrons in the highest orbital.
Explanation:
The __________________ is the process by which gases in the atmosphere absorb and reradiate heat.
Answer:
Greenhouse effect
Explanation:
Answer: water vapor, carbon dioxide and other gases absorb and reradiate thermal energy.
Explanation:
on 100 corex
c с
A flask contains helium and nitrogen
gases. The partial pressures of each are
77 mm Hg and 87 mm Hg, respectively.
Help Resources
What is the total pressure in the flask mm Hg
Answer:
P(total) = 164 mmHg
Explanation:
Given data:
Partial pressure of helium = 77 mmHg
Partial pressure of nitrogen = 87 mmHg
Total pressure of flask = ?
Solution:
According to Dalton law of partial pressure,
The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.
Mathematical expression:
P(total) = P₁ + P₂ + P₃+ ............+Pₙ
Now we will solve this problem by using this law.
P(total) = P(He) + P(N₂)
P(total) = 77 mmHg + 87 mmHg
P(total) = 164 mmHg
plzzzz help ASAP !!!!
Answer:
sorry can't
Explanation:
Answer:
Try to get a solution from Google
IF YOU ANSWER CORRECTLY U WILL RECIVE BRAINLEIST AND 10 pts! AsAp! thank youuu u will make my day by answering CoRrEcTlY!
Answer:
6 and 8
Explanation:
I need help please and thank you
Answer:
ooooooooooooooooooh i dont know this one
Explanation:
im not good a math at all
Someone please help will mark as brainliest
Answer:
A. 2Fe + 3Cl2 --> 2FeCl3
B. 2Fe + 3O2 --> 2Fe2O3
C. C4H10O + 4O2 --> 4CO2 + 5H2O
D. C7H16 + 11O2 --> 7CO2 + 8H2O
Explanation:
In mitosis, how does a daughter cell compare with its parent cell?
A.
A daughter cell has twice as many chromosomes as its parent cell.
B.
A daughter cell has half as many chromosomes as its parent cell.
C.
A daughter cell and its parent cell are exact copies of each other.
D.
A daughter cell has no similarity to its parent cell.
Answer: im pretty sure its the last (one daughter cell has no similarity to its parent cell.)
Explanation: bc a daughter cell has 30 and the parent cell would have 46 and thats not twice or half as many and they arent the same either so the last one makes sences
15.8 liters NF3 (at STP) converted to grams
Mass NF₃ at STP : 50.06 g
Further explanationConditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters/mol.
15.8 L at STP, mol NF₃ :
[tex]\tt \dfrac{15.8}{22.4}=0.705[/tex]
mass NF₃ (MW=71 g/mol) :
[tex]\tt mass=mol\times MW\\\\mass=0.705\times 71\\\\mass=50.06~g[/tex]
3
5) An atom has 24 protons, 22 electrons, and 28 neutrons. What is the
ATOMIC # of the atom?*
O 24
022
52
46
Answer:
It is 34
Explanation:
The atom that has 24 protons, 22 electrons, and 28 neutrons has an atomic number of 24.
ATOMIC NUMBER:
The atom of an element is made up of three subatomic particles namely: neutron, proton and electron.Proton is the positively charged component while electron is the negatively charged component. The number of protons in the atom of an element represents the atomic number of that element. Therefore, if an atom has 24 protons, 22 electrons, and 28 neutrons has an atomic number of 24.Learn more at: https://brainly.com/question/17274608?referrer=searchResults
Calculate the speed for a car that went a distance of 125
kilometers in 2 hours tiine.
Answer:
62.5 km/hr
Explanation:
Speed can be found by dividing the distance by the time.
s=d/t
We know the car travelled a distance of 125 kilometers in 2 hours. Therefore:
• d=125 km
• t= 2 hr
Substitute the values into the formula.
s= 125 km/ 2 hr
Divide
s= 62.5 km/ hr
The speed of the car is 62.5 kilometers per hour.
A 12 kg object experiences a net force of 120 N. What acceleration will this object experience?
Answer:
10 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{120}{12} \\ [/tex]
We have the final answer as
10 m/s²Hope this helps you
Why do nonpolar substances tend to be gases and not liquids or solids?
Answer:
Because the intermolecular interactions are weaker.
Explanation:
Nonpolar substances do not have dipole-dipole or hydrogen bond interactions, which are strong intermolecular interactions that often make the substance liquid or solid. Instead, they must rely on van der Waals forces, which are relatively weaker interactions that are often insufficient to hold the molecules together in liquid or solid form.
The magnitude of intermolecular association in nonpolar substance is much lower than the magnitude of intermolecular association in polar substances.
Polar substances are those substances in which a permanent dipole exists in the molecule. In a molecule having a permanent dipole, the electronegativity difference between the atoms bonded in the molecule is high.
As a result of this high electronegtivity difference between atoms, the molecules interact more intimately hence polar molecules tend to exist mostly as liquids and gases while nonpolar molecules having less intimate intermolecular interaction via dispersion forces exist mostly as gases.
Learn more: https://brainly.com/question/9352088
how many moles are 16.3 grams of lithium
Answer:
2.34 moles
Explanation:
Given that,
Given mass = 16.3 grams
We know that, molar mass of lithium is 6.941 g/mol
Let there are n number of moles. It is given by :
n = given mass/molar mass
[tex]n=\dfrac{16.3\ g}{6.941\ g/mol}\\\\=2.34\ moles[/tex]
So, there are 2.34 moles in 16.3 grams of lithium
What type of reaction is this?
Zn + K2 CrO 4 --> K + ZnCro4
A) single replacement
B) double replacement
C) decomposition
D) synthesis
Answer:
a) single replacment........................
In a short paragraph, explain one thing you've learned from the course this year.
Answer:
ive learned about the chart , ive learned about the coolest chemicle reactions and how. the can change colors , ive also learned that chenistrey is all around us since the beginning of life ,and how liquid can turn solid
Explanation:
Which of the following is NOT an ionic compound?
A. Carbon Dioxide
B. Lithium Oxide
C. Barium Oxide
D. Calcium Chloride
When light pases through a prisim,white light will be separated into different colors. which statment best explains this observation?
Answer:
It's B
Explanation:
The classic rainbow is made of certain colors, so If a white light passed through a glass prism [and only glass] the rainbow would show because of the colors bending [the naked eye can't see that 0-0]
Also, you know the sky is blue right?? The color blue in that prism when the light shined over was the shortest and wavy color. each color has it's own wave. blue is just the shortest and waviest one.
What type of energy is transmitted from the Sun to Earth through space?
Answer:
solar energy
Explanation: