if I have a +2 oxidation number do I give up or accept electrons?​

Answers

Answer 1

Answer:

I will give up the electrons

Explanation:

Consider the following rules:

1. An atom loses electrons if its oxidation number is positive.

2. An atom gains electrons if its oxidation number is negative.

3. An atom neither gains nor loses electrons if its atomic number is zero.

As I have an oxidation number [tex]+2[/tex] that is oxidation number is positive, so, I will give up electrons.


Related Questions

complete combustion of wax take place in____ zone of a candle flame​

Answers

Answer:

Non-luminous

Explanation:

Complete combustion of wax take place in non-luminous zone of a candle flame

It would probably be Non-luminous

Regardless of how much mass they have, all stars will become a ______?

Answers

Answer:

high mass- a red supergiant

low mass-red giant

Explanation:

All stars, regardless of their size, eventually run out of fuel and collapse due to gravity

All living organisms are composed of

I need help on this, i'll give 30 pts for brainliest

Answers

Answer:

All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.

Explanation:

Answer:

All living organisms are composed of one or more cell

Explanation:

hope this helps, please mark brainliest

Which atmospheric layer is represented by F? What are its characteristics?

Answers

Answer:

Ionosphere.

Explanation:

The atmospheric layer that is represented by F is known as IONOSPHERE.

The characteristics of Ionosphere

1. It is considered to be located in the upper layer of the earth's atmosphere due to the location of region F.

2. It is ionized by solar radiation that contains an electrical charge.

3. It functions as a reflector. This can be observed in radio waves broadcasting.

How many meters are in 21.5 km?

Answers

Answer:

21500m

Explanation:

Answer:

21, 500 meters

Explanation:

There are 1000 meters in a kilometer. Muliply 21.5 x 1000 to find this.

Hope it helps!

please I don’t get this at all someone help

Answers

i think it’s 7.41 because you count up all the atoms and find out how many are x (the large grey ones) and you do 2/27 x 100 which gives you 7.41 :) (sorry if i counted wrong it’s kinda hard)

Where on the periodic table are metalloid elements most likely found?
A Along the stairstep line
B. Among the lanthanides and actinides
C. At the bottom
D. On the left side

Answers

D on the left side because if you look st periodic table it shows were most of the medallions are founf

Answer:

its the right side ik its not an option on here but its the right side on some

Explanation:

trust me

Calculate the number of nitrogen atoms in 20.9 grams of nitrogen.

Answers

Answer:

N=5.47×10^23

Explanation:

n=

[tex]n = \frac{m }{ar} [/tex]

N=n×la

Lead from a car battery has been detected in a lake far from where the battery was discarded. How did the lead get there?

Answers

Answer:

The way that lead got to the river is by transportation through soil. When the battery got buried it was still leaking and it moved through the pores of soil and was able to travel very far away to the lake.

Explanation:

1) If a rod of chromium weighing about 323.98 grams is cooled in a

bucket containing 35 grams of water, and the final temperature is.

54.5°C, what is the specific heat of chromium?

Answers

Answer:

See explanation below

Explanation:

In order to do this, you are missing two important data, which are the initial temperatures of the water and the rod.

For practical purposes, I will assume this data, and then you'll just replace the procedure with your data to get an accurate result.

So, for this exercise, I will assume that the rod of Chromiun was heat to 100 °C and then cooled with water at 20 °C, so the final temperature is 54.5 °C.

To get the specific heat, we need to use the following expression:

q = m.C.ΔT  (1)

Where:

q: Heat of the substance/compound

m: mass

C: specific heat

ΔT: Difference of temperature of the mixture.

With this expression, we need to calculate first the heat of the water, because:

q₁  + q₂ = 0

Therefore, with the value of the transfered heat, we can determine later the specific heat. So, As we have the specific heat of water which is 4.18 J/g °C, and the temperature and mass, we can determine the heat of the mixture:

ΔT = 54.5 - 20 = 34.5 °C

q₁ = 35 * 4.18 * 34.5

q₁ = 5047.35 J

Now, we can determine the specific heat of the rod:

q₁ = -q₂

-5047.35 = 323.98 * (54.5 - 100) * C

-5047.35 = -14741.09C

C = 0.34 J/g °C

Hope this helps

Help ASAP!!!!10 Points
The sun’s mass is about 30 million times greater than the moon. Why does the gravitational pull between Earth and the moon affect Earth’s tides more than the gravitational pull between Earth and the sun?
a The moon is denser than the sun.
b The moon is closer to Earth than the sun.
c The moon has phases, but the sun does not.
d The moon orbits Earth, but the sun does not.

Answers

Answer:

B

Explanation:

stronger gravitational gradient

Match the landform to its description.
caldera
made of pieces of lava
volcanic soil
material fills in valleys
cinder cone
bowl-shaped depression
shield volcano
wide summit, gentle slope
lava plateau
rich in nutrients

Answers

Answer:

cinder cone: made of pieces of lava

shield volcano: wide summit, gentle slope

volcanic soil: rich in nutrients

caldera: bowl shaped depression

lava plateau: material fills in valleys

Explanation:

it’s right

Answer:

Caldera, Bowl-Shaped depression

Shield volcano, Wide summit, Gentle slope

Lava plateau, Material fills in valleys

Volcanic soil, Rich nutrients

Cinder Cone, Made of pieces of lava

Explanation:

Got it right on edge

How would an apple, potato, and onion all taste the same?
A) plugging your nose
B) Chewing on mint gum in intervals
C) eating them at the same time

Answers

Answer:

A) plugging your nose

This is because of your olphactory bulb being blocked. This is the series of nerve endings in your nose, that not only allows you to smell, but to taste at the same time.

What characterizes a system at equilibrium?
O A. The system is changing at an even rate.
B. The system has stopped changing.
O C. The system cannot undergo change.
D. There is no net change to the system.

Answers

Answer:

D. There is no net change to the system

Explanation:

Equilibrium means "equal". In a chemical system, changes occur in substances called the reactants to produce another substance called the products. These changes from reactants to products and vice versa occur at an uneven rate until EQUILIBRIUM is reached.

In other words, equilibrium is attained when the reactants and products are formed at an equal or constant rate i.e. There is no net change to the system. For example, in the chemical system below:

A + B ⇌ C + D

This system is said to be at "EQUILIBRIUM" if the rate of reaction of the reactants (A and B) is equal to that of the products (C and D). That is, there is no net change (difference) in the reaction rate.

You have two samples, one is calcite and the other is halite.
How would you differentiate between without using any equipment?
A- Colour
B- Specific gravity
C- Hardness
D- Cleavage

Answers

Answer:

c

Explanation:

You can differentiate between calcite and halite without using any measuring equipment based on: C. Hardness.

What is a mineral?

A mineral can be defined as a form of naturally occurring, inorganic solid substance that is typically characterized by a crystal structure.

The properties of a mineral.

In Science, the properties that can be used to identify and differentiate two or more minerals include the following:

LusterStreakHardness

In conclusion, hardness is a mineral property that can be used to differentiate between calcite and halite without using any measuring equipment.

Read more on hardness here: https://brainly.com/question/24333064

A substance has a fixed volume. What else do you need to know to determine its state of matter?

Answers

Answer:

If it can change shapes easily.

Explanation:

A fixed volume eliminates gas as a possible state of matter, therefore leaving liquid and solid.

If the substance can easily change shape, it is a liquid. If it cannot change shape, then it is a solid.

Another way to determine the state of matter is through particle movement.

If particles slip past each other, it is a liquid. If particles vibrate in place, it is a solid.

The melting of a glacier is an example of the interactions among which of Earth's spheres? geosphere, troposphere, cryosphere atmosphere, geosphere, cryosphere atmosphere, asthenosphere, biosphere hydrosphere, asthenosphere, atmosphere

Answers

Answer:

The melting of a glacier is an example of interaction among;

Hydrosphere, asthenosphere, atmosphere

Explanation:

The melting of a glacier is an example of the interactions among the Earth's cryosphere and hydrosphere

The cryosphere is described as the portions on Earth where water appears in solid (frozen) form such as glaciers, frozen grounds, snow covered land, sea ice, ice sheets, river ice, ice caps, etc.

The hydrosphere is all the forms water on a planet including, ice, liquid water and water vapor, therefore, the cryosphere is a part of the hydrosphere

The geosphere comprises the Earth's interior, including the asthenosphere, which is fluid and hot and therefore spread heat through both conduction and convection to the hydrosphere that raises the ocean temperatures and lead to glacier melting

The green house effect in the atmosphere results in global warming that raises the average temperature of the Earth which in turn raises the temperature of the oceans and the troposphere, resulting in melting of a glacier

Therefore, the melting of a glacier is an example of interaction among the hydrosphere, asthenosphere, and, atmosphere

Which substance is the least toxic?
a. chlorine (LD50 = 850 mg/kg)
b. vitamin A (LD50 = 2000 mg/kg)
c. cola (LD50 = 140 mg/kg)
d. aspirin (LD50 = 200 mg/kg)

Answers

Answer:

I believe it's D. I searched up a lethal table chart and it states Aspirin is even more toxic than chlorine. As for the other two, it didn't specifically state it was toxic with one dose - meaning you have to take more than one dose for toxicity to take effect.

Explanation:

What is the role of consumers in a free market economy?

Answers

It contributes to economic growth and transparency. It ensures competitive markets. Consumers' voices are heard in that their decisions determine what products or services are in demand. Supply and demand create competition, which helps ensure that the best goods or services are provided to consumers at a lower price.
It leads to growth and openness in the economy. This guarantees competitive markets. The voices of customers are heard because their choices decide what goods or services are in demand. Supply and demand generate competition that helps ensure that the best goods or services are offered at a cheaper price to customers.

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plssss

How many moles are there in 3.9 grams of potassium

Answers

1.77 so A. I don’t need to explain this just helping out haha

Answer:

0.0997 mol K

Explanation:

First of all, the picture and your question do NOT match so I will solve for what you are asking for.

3.9g x 1 mol/39.10 g = 0.0997 mol K

The 39.10 grams is the atomic mass of potassium

If I combine atoms then I must be performing which process?

A) Radiation Reaction

B) Strong Force

C) fission

D)Fusion

Answers

the answer is fusion. hope this helps!

Answer:

D: fussion

Explanation:

The process called nuclear fussion.

for example, four hydrogen atoms combine in a nuclear fussion reaction to form one helium atom.

When water evaporates from plants what is it called

Answers

Answer:

photosynthesis

Explanation:

I think

A confined quantity of a gas has a pressure of 2.50 atm and a temperature of -22⁰C. What is the new pressure if the temperature is increased to 22⁰C?
a. 2.1 atm
b. 2.5 atm
c. 2.94 atm
d. 3.41 atm

Answers

Answer:

C Ian sure2.94atm

Explanation:

I am low student

Describe the natural processes which remove carbon dioxide from the atmosphere

Answers

Answer:

Explanation:

The process is photosynthesis as plants need carbon dioxide and humans need oxygen so plants release oxygen which humans breath/take in and plant/trees take in carbon dioxide which humans release.

The natural process which removes  carbon dioxide from the atmosphere is photosynthesis.

What is photosynthesis?

It is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy  through the process of cellular respiration.

Some of the energy which is converted  is stored in molecules of carbohydrates like sugar and starches  which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis  are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.

The process begins with proteins absorbing light energy  which are called reaction centers and contain a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles called chloroplasts while in bacteria they are present in plasma membrane.

Learn more about photosynthesis,here:

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_______ dm^3 = 4.0 L

Answers

Answer:

[tex]4dm^{3}[/tex]

Explanation:

1dm^3 is equal to 1L.

Please help, thank you! Match each organism with the correct description.
1. algae
2. rabbit
3. tiger
4. human
5. bacteria
<><><><><><><><><><><><><><><><>
A. producer
B. omnivore
C. decomposer
D. primary consumer
E. carnivore

Answers

Answer:

1. A

2. D

3. E

4. B

5. C

Explanation:

1. Plants are known as producers since they produce energy for themselves through photosynthesis.

2. The rabbit is a primary consumer since it’s herbivore and only feeds on producers for energy.

3. The tiger is a carnivore, and preys on other consumers for energy.

4. A human is an omnivore since it can gain energy from both producers and consumers.

5. Bacteria are know as decomposers since such category of organisms break down other organisms to gain energy.

6. What does a numerical subscript following a set of parentheses in a chemical
formula mean?

Answers

It is similar to the subscript next to an element, it indicates how many of the group or polyatomic ion in parentheses are present in the formula.

As an example, calcium hydroxide is Ca(OH)2 The subscript indicates that this formula contains two hydroxide ions.

A numerical subscript following a set of parentheses represents the number of the group or poly-atomic ion in parentheses are present in a chemical  formula.

As an example, calcium hydroxide is [tex]\bold { Ca(OH)_2 }[/tex] . The subscript (2) indicates that calcium hydroxide contains two hydroxide ions.

Therefore, A numerical subscript following a set of parentheses represents the number of the group or poly-atomic ion in parentheses are present in a chemical  formula.

To know more about Chemical formula

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Which of the following defines the wavelength of a wave?

Answers

Answer:

where is the questions........

Answer:Wavelength can be defined as the distance between two successive crests or troughs of a wave. It is measured in the direction of the wave. Description: Wavelength is the distance from one crest to another, or from one trough to another, of a wave (which may be an electromagnetic wave, a sound wave, or any other wave).

About how many times longer than modern humans have hooved mammals lived on earth?

Answers

Answer:

I think it should be about maybe the times of the dinosaurs

also I think 23 to 16 billion years

Explanation:

No explanation sorry if im wrong

Mammals are the animals of the vertebrate group with the presence of the mammary gland. About 16-23 billion years ago hooved animals lived before humans.

What are hoofed mammals?

Hoofed animals or mammals the even and odd-toed ungulates that have toes in their feet region used to balance their body weight. They have a nail-like case known as a hoof.

Hoofs protect the feet area and enable fast running in mammals. Some examples of hoofed mammals are a cow, zebra, antelope, moose, horse, deer, etc.

Therefore, humans evolved in the Oligocene Epoch and the mammals in the Cretaceous or the Jurassic period.

Learn more about mammals here:

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How are different elements determined?

Answers

Explanation: Elements are defined by the number of protons in a given atom, and the atom is the smallest unit of an element. In contrast, a compound is defined by the identity and organization of multiple atoms, with the smallest unit of a compound being a molecule.
Short answer = Elements are defined by protons in a given atom .
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