How many valence electrons does magnesium (Mg) have?
Ο Α. 12
B. Six
O C. three
O D. two

Answers

Answer 1

Answer:

Magnesium is in the group #2 on the periodic table of elements. This means it has two valence electrons.

Answer 2

Answer:

two

Explanation:


Related Questions

What would happen to the geosphere if there was no hydrosphere? Think of weathering and erosion

Answers

Answer:

Without oceans and land (hydrosphere and geosphere), there would be no wind (as winds are produced by differences of air temperature between the land and oceans). This rock cutting shows the rocks that have formed on the surface of the Earth. Last of all, without the geosphere, there would be no world to live on!

Explanation:

help pls-

compare and contrast evaporation and boiling

Answers

so the simple answer would be evaporation is slow and can only occur through the surface of a liquid and it cools it down, while boiling is fast and produces bubbles ( evaporation does not ) and it occurs throughout the liquid and doesn’t cool it down. A similarity between the two would be water vapor is given off
Both the processes of evaporation and boiling result in a change from liquid to vapor.

hope this is what u we’re looking for and this helps !! :)

Use the pedigree chart below to answer the question. What do the circles that are half shaded represent.

A a male that is a carrier of a trait. but does not show the trait.
B a female that is a carries of a trait, but does not show the trait
C a male that has the trait and shows the trait
D a female that has the trait and shows the trait.

Answers

Answer:

B

Explanation:

What cell part supports the structure of the system plant cell

Answers

Answer:

The cell wall provides strength and support to the plant, much like the exoskeleton of an insect or spider (our skeleton is on the inside of our body, rather than on the outside like insects or spiders). The plant cell wall is mainly made up of the carbohydrates molecules cellulose and lignin.

Explanation:

learned this last year

In the laboratory, scientists remove the gene for insulin from human chromosomes. They insert the gene into the DNA of bacteria. This causes the bacteria
to produce human insulin. The insulin is used to treat diabetes in humans. Which of these describe this process?
A. Recombinant DNA
B. Reproductive Cloning
C. Gene Therapy
D. DNA Fingerprinting

Answers

Answer:

A. Recombinant DNA

Recombinant DNA is created by a process called genetic recombination. In this process, we insert a exogenous gene to let another organism, a bacteria in this case, produce a protein that can not be produced otherwise

. The Texas Horned Lizard has a blood shooting defense mechanism that shoots out
from the corner of its eye. The lizard's blood also tastes bad to its predators. If the
lizard feels threatened it gives the predator a taste as a warning.
Which of these explains the success of the Texas Horned Lizard?
A. The lizard displays several adaptations due to a reduction in genetic diversity.
B. The lizard inherited traits to provide an advantage defense mechanism that helps it survive.
C. The loser inherited on favorable traits that decrease the chance of survival.
D. The lizard inherited traits that made a hybrid species that allows it to survive in an extreme environment.

Answers

Answer: lowkey think its B

Explanation:

The success of the Texas Horned Lizard is :

B. The lizard inherited traits to provide an advantage defense mechanism that helps it survive.

Texas Horned Lizard

The success of the Texas Horned Lizard is the lizard inherited traits to provide an advantage defense mechanism that helps it survive.

The Texas horned lizard or "h-orny amphibian" may be a flat-bodied and fierce-looking reptile. The head has various horns, all of which are noticeable, with two central head spines being much longer than any of the others.

Thus, the correct answer is B.

Learn more about "Texas Horned Lizard":

https://brainly.com/question/11659132?referrer=searchResults

What, in general, can you infer about the energy per square meter at the equator?

Answers

Answer:

0-degrees latitude, at the equator. The temperatures would be higher because the radiation from the sun is more direct. The overall energy is greater per square meter because the sunlight is more direct.

Is Standing on a diving board a Kinetic energy or potential energy

Answers

Answer:

Explanation:

Potential Energy. This diver is standing at the end of the diving board, ready to dive. After he/she dives and is falling toward the water, they'll have kinetic energy, or the energy of moving matter. But even as they stand motionless high above the water, he/she has energy

what diseases can affect the digestive system?

what diseases can affect the respiratory system?

how do these diseases in each of these organ systems disrupt homeostasis?

Answers

Answer:

Lots of things can effect the lungs and GI systems from virus to bacteria. Any illness in either location can upset homeostasis. homeostasis is just the baseline normal of a human. So, if an illness causes fever then it upsets the balance, both chemical as well as hormonal.

If all cells have the same DNA how do they become different types of cells?​

Answers

Cells are made of the same DNA but they can have different functions. It depends on where they are in your body; each of them have a separate job. There are different types of cells. Apparently, for a cell to work...1000 proteins must be made.

what are the biotic factors that would affect owl populations

a. availability of food
b. carbon dioxide levels
c. new diseases
d. moisture levels

choose two

Answers

Answer:

I would select

A and C

Explanation:

Biotic factors are those of which are living

Which cell organelle is used to move fluid across the outside of the cell
membrane?

A.Chloroplast

B.Cytoplasm

C.Flagella

D.Cilia

Answers

Answer:

im going to say either c or d or both

Explanation:

sorry if im wrong

Answer:

b)cytoplasm is the one that moves the fluid.

Desenvolvimento Sustentável - 1ª Série do EM- Biologia Habilidades do Currículo Paulista: EF09CI13 Propor iniciativas individuais e coletivas para a solução de problemas ambientais da comunidade e/ou da cidade, com base na análise de ações de consumo consciente e de sustentabilidade bem-sucedidas 15/02/21 - 1ª série do EM - Biologia - Desenvolvimento sustentável O que propõem o desenvolvimento sustentável? A) É impossível sustentar o desenvolvimento B) Pode haver desenvolvimento em harmonia com o meio ambiente C) Para sustentar a indústria é necessário o desenvolvimento em detrimento do meio ambiente

Answers

Make it English for me to better understand

HELLLLPPPPPPPPPPP HURRY

Answers

Answer:

A

Explanation:

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Pls help quick plzzzzzzzz

Answers

1. Flowers must rely on vectors to move pollen. These vectors can include wind, water, birds, insects, butterflies, bats, and other animals that visit flowers. We call animals or insects that transfer pollen from plant to plant “pollinators”.

2. Germination:When a seed falls on the ground, it needs warmth and water in order to germinate; some seeds also need light. Dicots have seed coats that soften with moisture. After being planted in the soil for a few days, the seed absorbs water and swells until the seed coat splits.

Which statement is true about all metals?

Answers

D because they can melt if it gets to hot
The answer is D she is right

What would most likely result if more farms were developed along river basins in North Carolina

Answers

Answer:

Area of river basins, portion in Western North Carolina River Basins Square Miles French Broad 2,830 Yadkin 1,900 Little Tennessee 1,797 Catawba 1,530 6 more rows ...

Explanation:

hopes this helps D:

Answer:

the answer is an increase in water pollution

Which of the following is true about genes?
A.
The genes of a particular organism can never change throughout its lifetime.
B.
In humans, genes are passed to an offspring from two parents.
C.
Genes are responsible for all the traits of an organism.
D.
Genes are made up of smaller molecules known as chromosomes.

Answers

Answer:

I think d is I thinks only

Answer:

answer is c

Explanation:

i'm on the same topic as you and hope im right

What is the source of most salt in the ocean?
A.fish
B.human activity
C. Wind
D. Rocks on land

Answers

Answer:

D. rocks on land

Explanation:

Salt in the ocean comes from two sources: runoff from the land and openings in the seafloor. Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks. This releases ions that are carried away to streams and rivers that eventually feed into the ocean.

Answer:

Option D Rocks on land

Explanation:

Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks. This releases ions that are carried away to streams and rivers that eventually feed into the ocean.

What type of muscle is found in the heart that has gap junctions to allow electrochemical signals to cause rapid contraction?
A. Rough muscle
B. Smooth muscle
C. Cardiac muscle
D. Skeletal muscle

Answers

D) Cardiac Muscle!


hope this helps :)

Suppose an individual giraffe could not reach high leaves on a tree
its neck was too short. Lamarck's theory would suggest that the giraffe could
undergo physical changes that would lengthen its neck simply by stretching
to reach the branches. What experimental result would disprove this?
E The necks of giraffes today are shorter than the necks of early giraffes.
G. Giraffes with longer necks prefer to eat leaves from higher branches.
H. Neck lengtı does not change when giraffes are fed branches at different
heights.
1. Giraffes with longer necks frequently produce offspring that also have
longer necks.

Answers

Answer:

the last one according to me

The diagram to the right shows an HIV particle.
What is the function of the glycoproteins on the outside of the virus?
A. to carry genetic material
B. to propel the virus forward
C. to help the virus invade cells
D. to protect the HIV particle from antibodies

Answers

im just gonna say I hope and pray that it’s c:/

The function of the glycoproteins on the outside of the virus is to help the virus invade cells (Option C).

What is a virus?

A virus is an entity (not an organism) that is able to infect the cells of a given sensitive host.

A virus is covered by a layer called the coat, which is composed of glycoproteins to infect suitable hosts.

In conclusion, the function of the glycoproteins on the outside of the virus is to help the virus invade cells (Option C).

Learn more on viruses here:

https://brainly.com/question/17395741

#SPJ2

TRUE OR FALSE
1.Body covering of animal such as fur,feather,and hair are used for protection
2.land animals have gills for breathing.
3.Worms breath through their skin.
4.all land Animals have two Pairs of legs.
5.The elephant Has thick skin to prevent injuries from enemies.​

Answers

Answer:

1.true

2.true

3.true

4.false

5.true

Need help asap............... ​

Answers

Answer:

Cheetahs and lions

Explanation:

They feed on the same prey. Therefore, if they live in the same area, one or both species will have less food. You might expect them to fight each other over food, but they do not.

Answer:

Cheetah And Lions can you mark me Brainlest?

Explain what could happen if the relationship
ended.

Answers

Answer:

well

Explanation:

if the relationship ended, you'll both eventually lose feelings 2-3 months after y'all broke up.

What is not a property of water that helps make water essential for life on Earth?

Answers

So the the main forces that keep the water on the surface of the planet are to do with plate tectonics. If the plates were to stop moving, the water probably would eventually be absorbed into the interior, although this process would take a very long time indeed.

1. What phenotypes would you predict in the F2 generation?​

Answers

Answer: Round

Explanation:

That's what i put on mine lol

Answer: 75% Round 25% wrinkled

Explanation:

Positive feedback is a control system that sends a signal to ________ a response. Please don't give me any links answer only if you know the answer.

Answers

Positive feedback is a control system that sends a signal to ( increase) a response.

HELP PLEASEE!!
You will build a simulation of a population using the same elements as the simulation pictured here and show how
the traits in this population change in years 5 and 10.
- Trait A
- Trait B
- Trait
1 circle = 50 organisms
Start off with 2,500 plants of which 50% have medium-tip leaves, 25% have wide-tip leaves, and 25% have drip-tip
leaves. Each circle in your simulation will represent 125 organisms. Calculate how many circles you need for each
trait, and then create your simulation. Be sure to include a key that states the color coding for each trait.

Answers

According to the concepts of percentage and proportions, we can make the simulation with 20 circles, each of them representing 125 plants. Traits A = 10 circles. Trait B = 5 circles. Trait C = 5 circles.

To solve this problem, we need to know two concepts, percentage and proportion.

What is a percentage?

A percentage can be defined as a fraction or a part of 100. It is denominated as percent (symbol %).

100 refers to the number of parts into which the unit has been divided.

So, X% means that for every 100 parts, X parts are of our interest. Or, that  we are interested in X fraction from a total of 100 parts.

What is a proportion?

A proportion is the equal relationship between two determined ratios or quantities.

In the exposed example we need to represent this population of 2500 plants with circles.

We know that,

Each circle represents 125 plants50% of the population have medium-tip leaves, 25% have wide-tip leaves, and 25% have drip-tip leaves .

So here, our unit is the population. We can say that our population of 2500 plants is composed by 100 subunits or parts.

2500 plants ------------ 100 parts

So now we will calculate how many plants are represented by the 50% and 25% of the population.

If 100% of the population equals 2500 plants, how many plants are 50% of the population and 25% of the population.

100% -------------------- 2500 plants

50% -------------------- X = (50% x 2500 plants) / 100% = 1250 plants.

25% ---------------------X = (25% x 2500 plants) / 100% = 625 plants

Now we know that from the total of 2500 (100%) plants,

1250 (50%) have medium-tip leaves, 625 (25%) have wide-tip leaves, and 625 (25%) have drip-tip leaves.

Finally, we need to calculate how many circles represent these numbers. So, we know that 1 circle equals 125 plants. The question is, how many circles represent 2500, 1250 and 625 plants.

125 plants ----------------- 1 circle

2500 plants -------------X = (1 circle x 2500 plants) / 125 plants= 20 circles.

1250 plants --------------X = (1 circle x 1250 plants) / 125 plants = 10 circles.

625 plants ---------------X = (1 circle x 625 plants) / 125 plants = 5 circles.

So, our simulation must have 20 circles, from which

10 circles represent medium-tip leaved plants (Trait A), 5 circles represent  wide-tip leaved plants (Trait B), and the remaining 5 circles represent drip-tip leaved plants (Trait C).

In the attached files you will find the image.

You can elarn more about percentage and proportions at

https://brainly.com/question/7624715

https://brainly.com/question/312368

https://brainly.com/question/771113

https://brainly.com/question/1496357

https://brainly.com/question/870035

excretory organs and their excretory waste​

Answers

Answer: Organs of excretion include the skin, liver, large intestine, lungs, and kidneys. All of them excrete wastes, and together they make up the excretory system. The skin plays a role in excretion through the production of sweat by sweat glands.

Explanation:

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