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

Who developed virtually the same theory of evolution?
Select one:
O a. Wallace
O b. Malthus
O c. Lamarck
O d. Lyell

Answers

Answer: I’m pretty sure it's Lamarck

Explanation:

I’m sorry if it’s wrong

I believe its Wallace because the question asked for SAME THEORY OF EVOLUTION

. 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

Since infrared light is not visible, colors were artificially assigned to the photo using the following scheme:

Color Photographed Wavelength
blue 1.05 μm
green 1.25 μm
red 1.60 μm

If all the galaxies shown were composed of the same kinds of stars and nebulae, then the reddest galaxies would
A.
be moving toward us the fastest.
B.
be moving away fastest.
C.
be youngest.
D.
contain the most hydrogen.

Answers

Answer: be moving away fastest

Explanation: I got it right in study island

"Totipotency lasts for only a few days before the cells' fates are set as being the precursors to a specific lineage of cells." What does this sentence mean? Restate in your own words.

Answers

Pre-embryonic cleavages make use of the abundant cytoplasm of the conceptus as the cells rapidly divide without changing the total volume.

Alright, I’m begging someone for help plz

Answers

Answer is C

Hope this helps

The structure labeled A in figure 10-3 is called the?

also can someone help with 16 PLEASE !! ​

Answers

I’m pretty sure that the 15: is centromere
And 16: telomere

4. Cross a white bull with a white cow. Show the Punnett Square:
% Red Cow
% Roan Cow
% White Cow

Answers

Answer:

100% white cow

Explanation:

This question involves a single gene coding for skin color in cattle. The allele for red color (R) is codominant with the allele for white color (r). Hence, the roan cattle (Rr) will possess both red and white coloration.

According to this question, a white bull (rr) is crossed with a white cow (rr). Each parent will produce the "r" gamete, which when used in a punnet square will produce all WHITE COWS i.e 100% white cows. See punnet square attached.

Answer:

white cow

Explanation:

Why might people use solar energy for their homes?

Answers

Answer:

There are many reasons why homeowners go solar, but improving the environment and cutting energy costs are the most common. Many people are aware that solar is a great home efficiency upgrade and are eager to reduce their carbon footprint while also improving property value.

Explanation:

Will mark brainliest and give thirteen points

Answers

the awnser is D

a neap tide is when the moon is either above or below earth

and a spring tide is when the moon is on the side/both sides middle of earth.

Hope this helps and isn't too confusing.

As the medical examiner performs an autopsy on a body found in a nearby forest, she collects sand from between the victim's toes
that is identical to sand from a beach located 20 miles from the scene. What is the most important reason that this is relevant to
the case?
A)
It suggests that the victim may have drowned.
B)
It suggests that the victim may have taken a recent vacation.
0
It suggests that the crime may have occurred at another site.
D
It suggests that the suspect may have been to the beach recently.

Answers

Answer:

It suggests that the crime may have occurred at another site.

why is being heterozygous for sickle cell anemia considered an advantage?​

Answers

Answer: They may be maintained by heterozygote advantage

For example, the allele that causes sickle cell anemia is deleterious if you carry two copies of it. But if you only carry one copy of it and live in a place where malaria is common, the allele is advantageous because it confers resistance to malaria.

Explanation:

Hope this helped

How dose human activity effect the water cycle

Answers

Human Impacts on the Global Water Cycle: Effects on Sea-Level and Climate. Large-scale human manipulation of water has significantly altered global patterns of streamflow. Resulting changes in sea level, ocean salinity, and in biophysical properties of the land surface could ultimately generate climate feedbacks

what are the two types of ATP production available in our muscles?

Answers

Answer:Muscle cells are able to produce ATP with oxygen, which is called aerobic respiration, or without oxygen, an anaerobic process called anaerobic glycolysis or fermentation. The process in which ATP is made is dependent on the availability of oxygen (see the Cellular Respiration concepts).

Explanation:

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

Please help will mark brainliest and give 12 points

Answers

Answer:

anabalic (building up) : photosynthesism builds up molecules

catabolic (breaking apart): cellular respiration, helps cells multiply and stay in good condition (using energy to maintain the cells), complex molecules are broken down, energy is released

Explanation:

Match the appropriate food item with the indicator chemical you would use to detect the principal organic molecule present in that item.
Note: some indicator chemicals may be used for more than one of these food items or not at all.
B. raspberry jam
A. benedict's solution
B. benedict's solution
E. V ground turkey
C. lodine
C. plain oatmeal
D. sudan IV
A honey
E. bluret reagent

Answers

Answer:

raspberry jam -  benedict's solution

honey -  benedict's solution

ground turkey - biuret reagent

oatmeal - iodine

Explanation:

Benedict's test is a test used to confirm simple carbohydrates. it helps in identifying reducing sugars that have free ketone or aldehyde functional groups. Raspberry jam has mainly carbohydrates that can be tested by this indicator.

An iodine test is for the determination of starch which is a non-reducing sugar such as oatmeal

Sudan IV (C24H20N4O) is used for the presence of staining of lipids, triglycerides and lipoproteins. There is no food item given that has a proper amount of fat or lipid

Beuret reagent is a protein testing reagent that shows the presence of the protein. Ground turkey has a huge amount of protein that can be indicated by this

Which statement describes the synapse?

A. It is the gap between neurons that ensures that information travels in multiple directions.
B. It is the gap between neurons that ensures that information travels in one direction only.
C. It is the part of the neuron that carries information through electrical impulses to the cell body.
D. It is the part of the neuron that carries information through chemical impulses to the cell body.

Answers

Answer:-

[tex]\pink{\bigstar}[/tex] [tex]\large\underline{\underline{\bf\green{Synapse:-}}}[/tex]

Synapse is the gap between neurons that ensures that information travels in one direction only.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Therefore, the 2nd statement [B] is correct.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

[tex]\pink{\bigstar}[/tex] Additional Information:-

A Synapse is a small gap at the end of a neuron that allows a signal to pass from one neuron to the next. Synapses are found where nerve cells connect with other nerve cells. Synapses are the key to the brain's function.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

The term synapse was first introduced in 1897 by Michael Foster in his "Textbook of Physiology" and derived from the Greek synapsis, meaning "conjunction."

Answer: B) It is the gap between neurons that ensures that information travels in one direction only.

Explanation: this is the right answer ik cuz i just completed the quiz and got 100% thx to the person above!! Im just double confirming that this is the right answer.....hope this helps :D

What type of cells do you find homologous chromosomes?

Answers

"Human cells that contain one set of 23 chromosomes are called gametes, or sex cells; these eggs and sperm are designated n, or haploid. The matched pairs of chromosomes in a diploid organism are called homologous chromosomes."

Molten lava come to the surface and cool forming the first land. true or false

Answers

Answer:

true

Explanation:

common sense

your welcome for helping :)

The answer I think is true

2. How are humans making greenhouse gases of our own?
burning fossil fuels in our cars
burning forests
O all of these

Answers

Answer:

All of them. Plus feeding cows corn instead of grass makes them gassy.

Explanation:

What elements are needed to carry out photosynthesis? Select all that apply.\

Answers

Answer: carbon dioxide, water, and sunlight.

Explanation:

draw a line from each hormone in list A to the correct information in list B

Answers

Answer:

The correct answer would be -

FSH - used as fertility drugs to makes egg mature.

LS - stimulates the release of eggs.

Oestrogen - causes the lining of the womb to break down.

Explanation:

FSH is a hormone released from the pituitary gland and is the abbreviation of Follicle-stimulating hormone which controls the menstrual cycle and growth of eggs in ovaries. It is also used as a fertility drug that promotes the growth of eggs to mature it.

LS or Luteinising hormone is the hormone that is released from the pituitary gland and promotes the surge of the release of eggs.

Oestrogen is the hormone that helps females during puberty during the menstrual cycle to breakdown the lining of the womb.

If the length of the small intestine is ( 6 ) meters and the length of the large intestine ( 1.5 ) meters. what is the ratio of the large intestine to the small intestine

Answers

Answer:

1:4

Explanation:

According to the information provided in this question, the length of the small intestine is 6 meters and the length of the large intestine 1.5 meters. This means that the small intestine is longer than the large intestine.

To find the ratio of large intestine to the small intestine, we divide each length value by the smallest (1.5) i.e.

Large intestine = 1.5 ÷ 1.5 = 1

Small intestine = 6 ÷ 1.5 = 4

The ratio of large to small intestine according to this question is 1:4

Which is NOT a characteristic that all animals share? heterotrophs unicellular cells with a nucleus

Answers

Answer:

animals are multicellular

Explanation:

What kind of seeds should farmers plants in order to grow giant pumpkins,and why is this important?

Answers

Answer:

pumpkin need too much of sunny place.

Build the hierarchy of Federal Courts below:

Answers

Answer:

Supreme Court (top)

Courts of Appeal (middle)

District Courts (bottom)

Explanation:

Which of the following best describes a mutation?

a change in a gene

a section of a chromosome that codes for a trait

anything that can damage a gene

a distinguishing quality that can be passed from one generation to another

Answers

a mutation is a change in a gene

1. A longer depletion-time estimate assumes no recycling or reuse and no increase in reserves.
a. True
b. False

Answers

This should be b. False
The answer is false

During translation small organelles called __ read the mrna sequence ?

Answers

Answer:

thjs may be wrong but I am not sure ribosomes

Which of these shows the correct hierarchical sequence?

Answers

Answer:

The correct answer is B ❤️

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