When an atom in a reactant loses electrons, what happens to its oxidation number?
A. Its oxidation number decreases
B. Its oxidation number doubles.
C.Its oxidation number increases.
D.Its oxidation number increases by one.
E. Its oxidation number stays the same.

Answers

Answer 1
It would be e because Reduction happens when an element gains electrons; in this case, its oxidation number is lowered. For example, when iron rusts, oxygen can behave as an oxidizing agent. As the oxygen gains electrons, it changes from an oxidation number of zero to an oxidation number of negative two.

Related Questions

How does planting high yield crop varieties make farming more sustainable

Answers

Answer:

The more high yield crops are planted, the more production there will be from plants.

Explanation:

High-yield plants are plants that are genetically modified or modified artificially in a way that makes farming plants more efficient. More crops grow, therefore more money.

The answer is, the more high-yield plants there are, the more efficiency there will be from farming.

Answer:

Its D

Explanation:

my options were these

A. It increases the amount of water needed

B. It keeps soil fertility from diminishing over time

C. It keeps chemicals form entering the watershed

D. It decreases the amount of land needed

A loop with a break in it that prevents current from flowing is called a(n)_______
circuit.

Answers

Answer:

an open circuit

Explanation:

What needs to be done to balance this
equation?
CHA
O2
CO2
+ 2 H20
Remove coefficient 2 in front of
H2O on the right side of the
equation
Do nothing (equation is balanced).
Add coefficient 2 to O2 on the left
side of the equation.
Change O2 to Os on the left side
of the equation

Answers

Answer:

I'm not sure, but "Add coefficient 2 to O2...". You didn't really write out the equation properly.

does space have plenty of oxygen ​

Answers

Answer:

I don't think so because we can't breathe in space

Explanation:

Answer:

No

Explanation:

There is no oxygen in space, so astronauts must bring tanks of oxygen

What is the advantage of the SI unit over CGS units?
Help me ...
answer it as fast as you can...​

Answers

Answer:

The advantage of the SI unit over CGS unit are:

S.I has broader base. It has seven base units and two supplementary units.S.I is metric.S.I is coherent.S.I is rational, i.e. it gives one unit for one physical quantity .e g. for energy of any type i.e, mechanical or heat or electrical.There is only one unit Joule(J) but in M.K.S system unit for mechanical energy is joule.

HOPE IT WILL HELP YOU

Units of measurements

The advantage that SI unit has over CGI is that it has only one unit for each measurement

Explanation:

CGS: Also known as Gaussian units

Length is measure in cm (centimeter)

Mass is measured in g (gram)

Time is measured in s (second).

SI unit: The International System of Units

Length is measure in meter (m)

Mass is measured in kilogram (kg)

Time is measured in seconds (s)

In summary with the SI unit student do not need to store any conversion factors in memory

A 50-kg object is accelerating to the right at 10 m/s². What is the magnitude of the rightward net force acting
on it (in Newtons)?

Answers

Answer:

I'm confused did you not get an answer at all

Which phrase correctly describes ice?

A) Rigid and having low viscosity
B) Crystalline and having high surface tension
C) Amorphous and having low viscosity
D) Crystalline and rigid

Answers

Answer: D) Crystalline and rigid

Explanation:

Ice is considered to be a rigid mineral. It possesses a regular crystalline structure based on the molecule of water, which consists of a single oxygen atom covalently bonded to two hydrogen atoms, or H–O–H.

Answer: D

Explanation:

A charged particle is placed in a space. The particle experiences a force. What can be concluded?

A.
The space contains a magnetic field.
B.
The space contains an electric field.
C.
The space has a charge opposite to the particle's.
D.
Oppositely charged particles must be present.

Answers

Answer: A.

The space contains a magnetic field

Explanation:

A charged particle is surrounded by electric field and exerts force on other charges in the field, attracting or repelling them. 

But a charged particles in a magnetic field can escape into infinity without ever stopping due to magnetic force. We can therefore conclude that the space contains a magnetic field

Answer:

Explanation:

B

An airplane moves in straight level flight at constant velocity. What is the
net force acting on it if the mass of the plane is 1000 kg and the frictional
drag of the air is 1800 N? *

Answers

Answer:

Net force = 0

Explanation:

We have, an airplane moves in straight level flight at constant velocity.

Mass of the plane is 1000 kg

The frictional force acting of the air is 1800 N.  

It is required to find the net force acting on it. We know that net force is given by the product of mass and acceleration. But here the airplane moves with constant speed, it means its acceleration is equal to 0 such that net force is equal to 0.

   

TRUE or FALSE? If an object moves in a circle at a constant speed, its velocity vector will be constant. Explain your answer.

Answers

the velocity will change since the direction changes. what is the relationship between velocity and acceleration in a circle.

What of the following does NOT influence resistance? *
A.thickness of wire
B.temperature
C.material of wire
D.Number of components

Answers

Answer:

D. Number of components

Explanation:

Answer:

D. Number of components

Explanation: hope this helps :)

helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Answers

There’s force of friction/ drag that slows down a moving object, there’s also gravity pulling the wagon down which would help slow it down. Hope this helps good luck.

HELP ASAP
this is for science, and if i get the questions right, I pass, but the teacher never taught us the lesson, idrk y. so i really need help:( Im giving away 20 points so please give me your best answers ;)


1. As an astronaut travels from the surface of Earth to a position that is four times as far away from the center of Earth, based on the Law of Gravity which of the following statement is true?


a. mass remains the same and the gravitational pull from Earth decreases

b. weight remains the same and the gravitational pull from Earth changes

c. weight increases and the gravitational pull from Earth stays the same

d. mass decreases and the gravitational pull from Earth increases

2. A satellite is sent into orbit around the Earth, In which of the following situation would the gravitational force be the greatest?


A. 1200 lb satellite orbiting 150 miles above Earth’s surface

b. 850 lb satellite orbiting 150 miles above Earth’s surface

c. 850 lb satellite orbiting 1500 miles above Earth’s surface

d. 1200 lb satellite orbiting 1500 miles above Earth’s surface


3. High and low tides are the regular pattern of rising and sinking ocean-water levels. They are caused when the sun’s gravity and the moon’s gravity pull on ocean water. The moon’s gravity has a greater effect on Earth’s oceans than the sun’s gravity. Why would the moon have a greater effect than the sun?


a. The moon has less mass than the sun.

b. The moon is closer to Earth than the sun.

c. The moon is not as hot as the sun.

d. The moon has less mass than Earth.



4. Which statement about the universality of gravity is false?


a. The gravitational force between two objects depends only on their masses.

b. Any two objects that have mass also have a force of gravity acting between them, no matter how far apart they are.

c. The gravitational force between two objects increases if the objects move closer together.

d. The gravitational force between two objects increases if mass is added to one object.

Answers

Answer:

1)a- mass never changes as you move from the earth

2)actually am not sure I haven't been taught that too

3)b

4)a-it doesn't depend only on mass but also weight

Two sounds are played for you. The first has a frequency of 196 Hz. The second has a frequency of 392 Hz. Which sound will be "higher" to your ear?
A) The First
B) The Second
C) They will sound the same

Answers

Answer:

The second one, the higher the hertz the higher the frequency we hear

Explanation:

the two ways you could increase acceleration

Answers

Answer: mass(how much the object weighs) and force(how hard you push the object)

Explanation:

1. What are three things you think of when you think of energy?

Answers

Answer:

Food, wind, water.

Explanation:

This is supposed to be a personalized question so I answered with things that can make/give energy.

Answer:

This is personal question, very interesting! Depend on who is the person, where the person is working at, how old is that person - we can have various answers.

Personally, I think first about that human and other animals needs energy to survive, that means we need to eat, to drink; The plants need energy to survive too - that is the energy from the Sun.

Secondly, the human being needs such types of energy as electricity, wind, solar energy, etc. in oder to live. Even the acient people learnt to use solar and wind and water - natural energy from the nature.

Thirdly, the human being needs spiritual energy to have a good life.

Another specific terms of energy related to physics and chemistry, and even biology - actually are not in my mind in everyday life.

Explanation:

F.
Using this formula m = =, If a car is pushed with a net force
of 5000N, resulting in an acceleration of 3.5m/s2, what is the
mass of the car?
a 1438.5kg
b 1428.6kg
c 1328.6kg
d 1421.6kg

Answers

Answer:

C

What is the answer please help her

An electric motor converts electrical energy into energy.

Answers

Answer:

into mechanical energy

...........,.

Mechanical energy it’ll turn into mechanical

What is the speed of a high-speed electron traveling at right angles to a 0.80-tesla magnetic field with a force of -7.5 x 10^-12 newtons? The charge of an electron is 1.60 x 10^-19

Answers

Explanation:

Answer:

Magnetic field, B = 0.016 Tesla

Explanation:

It is given that,

Velocity of electron, v=9.6\times 10^5\ m/sv=9.6×10

5

m/s

Magnetic force, F=2.6\times 10^{-15}\ NF=2.6×10

−15

N

Charge, q=1.6\times 10^{-19}\ Nq=1.6×10

−19

N

The magnetic force is given by :

F=qvBF=qvB

B=\dfrac{F}{qv}B=

qv

F

B=\dfrac{2.6\times 10^{-15}}{1.6\times 10^{-19}\times 9.6\times 10^5}B=

1.6×10

−19

×9.6×10

5

2.6×10

−15

B=0.016\ TB=0.016 T

So, the magnitude of magnetic field is 0.016 Tesla. Hence, this is the required solution.

Answer:

F = q  v B so v = F/q B

v = -7.5 × 10-12/(-1.60 × 10-19) (0.80) = 5.9 × 107 m/s

Explanation:

3. Which of the following is an example of a
supplemental restraint system?
(a) air bag
(c) lap and shoulder belt
(b) safety belt
(d) antilock brakes

Answers

Answer:

A) air bag is your answer

Answer:

air bag

Explanation:

Any of several restraining systems in a vehicle, such as an airbag, in addition to the seatbelts.

Please help! I will give Brainliest! The image shows a cross section of a landscape and a well.


1: Land surface. 2: Unsaturated zone. 3: Groundwater. 4: Saturated zone.


Please Hurry timed test! Which of the layers shown is an aquifer?


1

2

3

4

Answers

3 - aquifers are permeable rock so they contain groundwater

Answer:

3!

Explanation:

have a nice day

Which statement correctly describes the differences between positive and negative acceleration?
Positive acceleration describes a change in speed: negative acceleration describes no change in speed.
Positive acceleration describes no change in speed; negative acceleration describes a change in speed.
Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.
Positive acceleration describes a decrease in speed negative acceleration describes an increase in speed.

Answers

positive accel.=increase in speed

negative accel.= decrease in speed

Answer: positive accel.=increase in speed

negative accel.= decrease in speed

Explanation:

Balance chemical reactions: please help question attached

Answers

2 AsI —> 2 As + 3 I

hope this helps!

A uniform electric field contains a number of particles. All are experiencing forces in the same direction as the electric field. What can be concluded from this?

All the particles have negative charges.
All the particles have positive charges.
All the particles are charged, but they may be positive or negative.
All the particles must be uncharged.

Answers

Answer: D

All the particles must be uncharged

Explanation:

If all the particles are positively charged, then there will be force of repulsion between them which will give different directions away from each other. The same is applicable if they are all negatively charged.

If the particles are positively and negatively charged, their will be force of attraction between them which will give different directions towards each other.

For all to be experiencing forces in the same direction, We can conclude that

All the particles must be uncharged.

Answer:

This picture represents the electric field diagram between two particles with static charges.

Do the two particles have the same charge?

✔ no

If the particles are free to move, what affect will the two particles have on each other?

✔ They will attract each other.

If a third particle was added to this field with a positive charge, what would it be attracted to?

✔ B

If an uncharged particle was placed between A and B, which way would it move?

✔ neither direction

Explanation:


When light rays appear to be coming from behind a mirror, what type of image has been formed?
A.imaginary
B.real
C.plane
D.virtual

Answers

Answer:

The answer ...........may be D.

What is the volume of this rectangular prism?
1/4cm 1/3cm 1/2cm​

Answers

Answer:

1/24

Explanation:

1/4 * 1/3 * 1/2 = 1/24

Answer:

1/24

Explanation:

Traveling in circle requires a net force

Answers

Answer:

Circular motion requires a net inward or "centripetal" force. Without a net centripetal force, an object cannot travel in circular motion. In fact, if the forces are balanced, then an object in motion continues in motion in a straight line at constant speed.

Explanation:

4. Unlike a gas, plasma can

Answers

Answer:

Unlike a gas, plasma can conduct electricity and respond to magnetism. That's because plasma contains charged particles called ions.

Answer:

a) The pressure in a traveling sound wave is given by the equation

p Pa π m x s t − − Δ = −

s x, t 6.0 nm cos kx+ 3000 rad / s t+ ( )( ) ( ) ( )

Find the (a) pressure amplitude, (b) frequency, (c) wavelength,

and (d) speed of the wave.

b) If the form of a sound wave traveling through air is

= ϕ , how much time does any given air molecule along

the path take to move between displacements s = + 2.0 nm and s = - 2.0 nm?

Solution: (a) The amplitude of a sinusoidal wave is the numerical coefficient of the sine (or

cosine) function: pm = 1.50 Pa.

We identify k = 0.9π and ω = 315 π (in SI units), which leads to f = ω /2 π = 158 Hz.

We also obtain λ = 2π/k = 2.22 m.

The speed of the wave is v = λ /k = 350 m/s.

(b) Without loss of generality we take x = 0, and let t = 0 be when s = 0. This means the

phase is φ= -π/2 and the function is s = (6.0 nm)sin(ωt) at x = 0. Noting that ω = 3000 rad/s,

we note that at t = sin-1(1/3)/ω = 0.1133 ms the displacement is s = +2.0 nm. Doubling that

time (so that we consider the excursion from –2.0 nm to +2.0 nm) we conclude that the time

required is 2(0.1133 ms) = 0.23 ms.

Determining Charge
An element becomes a positively charged ion when it
oloses protons.
loses electrons.
gains electrons
gains neutrons.

Answers

Answer:

hey friend,

an element becomes a positively charged ion when it loses electrons

An element becomes positively charged when it loses electrons.

In a circult, a battery is used to

1. slow down current
2. conduct current
3. raise the potential of electrons
4. convert electrical energy into some other form of energy

Answers

Answer:

4. convert electrical energy into some other form of energy

I might be wrong, but I think that it’s 4. Convert electrical energy into some other form of energy.
Other Questions
This passage comes from a high school textbook.After the division, North Korea attempted to overthrowSouth Korea's government. When this proved impossible,the North Korean communists began to preparethemselves for war while pretending to negotiatepeacefullyOn June 25, 1950, the north began its invasion of thesouth. The south was taken by surprise, but the armies ofSouth Korea fought bravely to defend their liberties. Thisaction moved the United Nations Security Council todeclare the invasion by the north illegal and a threat topeace. A decision was made to help the south, and a UNarmy, led by the United States, Britain, and France,joined the South Korean forces in an effort to repel theinvasionWhich statement best describes the reliability of thissource?Its content is mostly reliable because it accuratelydescribes how the war began.Its content is mostly reliable because it describesthe true cost of the war.Its reliability is questionable because it supports theUS and South Korean accountIts content is unreliable because it opposes the USpolicy of containment Which terms best describe Kublai Khan?A: conqueror and builderB: teacher and poetC: spiritualist and priestD: astronomer and mathematician Fiona is examining a material. She notices that the material has a dull appearance and feels very brittle.Fiona is most likely examining a _______(I'll give brainliest) Mariska was comparing her options for investment. One choice she was looking at showed that her principal of $1,875 over 10 years wouldearn $1,125 in interest giving her a total of $3,000 at the end of the investment period. What interest rate is being used to calculate thisInvestment? Please help me !!:(( I will mark brainliest! The question is the image attached, please help! What is the slope of the line represented by y=3/4x-1 ? A.1 B. -3/4 C.3/4 D.1 will give brainliest plz helppp!!!! Which explanation below is the most accurate regarding animal and plant adaptations for survival in a desert biome Population GeneticsDescribe:How is a population described in population genetics? a shirt shop order 1500 shirts. People only bought 1275 t-shirts. what percent of the tshirts were not sold a semitruck has 18 wheels. the semitruck has 3 times as many wheels than a garbage truck.how many wheels does a garbage truck have? need by 11;00 am A can of soup has a radius of 6 inches and a height of 10 inches. How much soup can fill the can if it is filled to the top? Place your answer in terms of pi. How many carbon and hydrogen atoms are there? A number is multiplied by 4. That results is added to 12. The final number is 40. What is the original number. A.) 2B.) 7C.) 13D.) 22 Calculate:|a||b|+|c|, if a=8; b=5; c=1 Students in grade 7 and 8 were asked which food they liked best the results are shown in the table below? is it true that energy never moves Given the set of integers one through 12 what is the probability choosing an odd number or a number greater than nine A hair stylist charges $25.00 for a hair cut, plus an 8% sales tax rate. How much change will you receive is you pay $30.00