The valence of an element is equal to the number of ____
that an atom of
that element gains, loses, or shares while forming chemical bonds.

Answers

Answer 1
The valence of an electron is equal to the number of its group number. If it’s in group number 3, then it has 3 valence electrons.

Related Questions

Energy in an ecosystem flows directly from
a. producers to tertiary consumers
b. producers to secondary consumers
C. tertiary consumers to secondary consumers
d. secondary consumers to tertiary consumers

Answers

energy enters an ecosystem through photosynthesis. By feeding on plants and on one another, animals play an important role in the movement of the matter/energy though. they also influence the quantity of plant and biomass present. so the anwser is D, secondary consumers to tertiary consumers

Answer:

''d' is correct.

Explanation:

Producers-->Primary Consumers-->Secondary Consumers-->Tertiary Consumers

Some tools have various levels of graduations. For example, a ruler may have graduations for both millimeters and centimeters. When measuring the length of an earthworm, which graduations would allow for the most accurate measurement?
millimeters
centimeters
decimeters
meters

Answers

Answer: A

Explanation:

I took the test

Millimeters allow for the most accurate measurement.

Is cm extra accurate than mm?

A paper clip may be measured with both units (millimeter or centimeter) but a millimeter is the greater appropriate size to get an accurate measurement.

Why are millimeters more specific?

A ruler marked in millimeters is extra unique than a ruler marked best in centimeters, considering a millimeter is a smaller unit than a centimeter.

Learn more about graduations here: https://brainly.com/question/2762199

#SPJ2

What is a carbon hydrate molecule?

Answers

Answer: A carbohydrate is an organic compound such as sugar or starch, and is used to store energy

Explanation:

Answer:

A carbohydrate is an organic compound such as sugar or starch, and is used to store energy. Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. ... Carbohydrates contain only carbon, hydrogen, and oxygen.A

Explanation:

Which would have most likely stopped Mendel from finding a pattern in his results?
O A. If seed shape did not have a clearly recessive form
B. If having a smooth seed had been a dominant trait
C. If having a wrinkled seed had been a recessive trait
D. If garden peas produced large numbers of offspring​

Answers

Answer:

A. If seed shape did not have a clearly recessive form

Explanation:

To study inheritance patterns, Mendel studied a few characteristics of pea plant -e.g. pea colour, shape, plant height. These characteristics had to be very clear dominant and recessive forms to distinguish between, otherwise detecting the patterns would not have been obvious.

For example, if crossing a wrinkled seed plant with a smooth seed plant made a semi-wrinkled plant, Mendel would not have been able to study the inheritance of dominant and recessive traits.

Answer:

A. If seed shape did not have a clearly recessive form.

Explanation:

Which of the following explains why antibiotics will not work against a viral infection?

a
Viruses replicate at such an accelerated rate that antibiotics are unable to control colonization and growth.

b
Viruses create highly resistant endospores that preserve their genetic material against antibiotics.

c
Viruses are not cellular and do not contain the lipid and protein markers targeted by antibiotics.

d
Viruses exchange genetic material with nearby bacteria that have become resistant to antibiotics.

Answers

Answer:

C.

Explanation:

Viruses don't have cell walls that can be attacked by antibiotics; instead they are surrounded by a protective protein coat.

I'm pretty sure the answer is C

What are the similarities between food webs and food chains?
Explain.thanks

Answers

Explanation:

food webs are what the animals eat in order while food chain is what animal eats what animal

Serenade is a country with a high rate of disease. What conclusion can be drawn about the health of the people in
Serenade? Select all that apply.
Serenade has a large number of unhealthy people,
Serenade has a small population of unhealthy people.
Serenade has more unhealthy people than healthy people,
Serenade has more healthy people than unhealthy people.

Answers

Answer:

1 (and 3))

Explanation:

The first answer would be most correct, but you might also be able to draw the conclusion that there are more unhealthy people than healthy people.

Answer:

1st one

Explanation:

I believe that you can assume the 1st one, but you can't really assume that they have more unhealthy people than healthy. You don't have any numbers to prove that.

How does the Gulf Stream affect weather in the United States? A. It brings cooler temperatures from the poles. B. It brings cooler temperatures from the tropics. C. The warm surface currents help create storms and fog. D. The cool surface currents produce cooler weather and fog.

Answers

Answer: C. The warm surface currents help create storms and fog.

Explanation:

The gulf stream can be defined as strong ocean currents that brings about the warm wind currents from the oceanic water of the gulf of Mexico to the eastern coastal areas of the United States. These wind currents bring warm weather conditions in the United States. The strong wind currents can also cause storms and fog in the coastal areas of the United States.

     

When a cell undergoes mitosis, the resulting daughter cells-

Answers

Answer:

a

Explanation:

Answer:

I believe it's the last one! :)

Analyze the diagram below. Which of the terms best describes it?

Answers

Answer:

disaccharides

Explanation:

they are formed by linking 2 monosaccharides through condensation

monosaccharides are simple sugars or glucose

Disaccharides are those types of carbohydrates that, when hydrolyzed by acids or enzymes, produce two molecules of monosaccharides that may or may not be identical. Thus, option A is correct.

What is important in formation of disaccharides?

Mono- and disaccharides, sometimes known as sugars, make up a significant portion of the carbohydrates included in food.

Disaccharides function similarly to other carbohydrates as a source of energy for the body.

When we consume foods containing disaccharides, our systems convert them into monosaccharides, or simple sugars, for absorption in the small intestine.

This condensation process is also referred to as a dehydration reaction, since a water molecule is released during this process.

Therefore, disaccharide is formed from monomeric subunits.

Learn more about disaccharide here:

https://brainly.com/question/14105364

#SPJ2

Why does evolutionary theory absolutely require the earth to be very
old?

Answers

Answer:

Mainly because Evolution takes millions and millions of years to happen.

Explanation:

Evolutionary theory require earth to be very old because the process of evolution takes millions of year to happen.

What do you mean by evolution ?

Evolution is the process through which a population of organisms evolves as new generations replace ancestors. Individual species do not evolve; rather, communities of organisms do.

Natural selection processes like as environmental change, predation, or human disturbance create evolutionary adaptations, and these processes must continue and grow widespread for the change to remain and accumulate. That happens less frequently and slowly than you may expect.

Scientists have determined that Earth is 4.54 billion years old, with a 50 million year error, by dating the rocks in its ever-changing crust as well as those in Earth's neighbors, including the moon and passing meteorites.

Therefore, the Earth needs to be very old for evolutionary theory to be true.

Learn more about Evolution, here:

https://brainly.com/question/2725702

#SPJ2

What is the Scientific Method and what are the steps?

Answers

Answer:

The basic steps of the scientific method are: 1) make an observation that describes a problem, 2) create a hypothesis, 3) test the hypothesis, and 4) draw conclusions and refine the hypothesis.

Explanation:

its correct ok

⋇⋆✦⋆⋇ hello there ⋇⋆✦⋆⋇

the answer is down below

【☆】★【☆】★【☆】★【☆】★【☆】【☆】★【☆】★【☆】★【☆】★

Answer:

The basic steps of the scientific method are:

1) make an observation that describes a problem,

2) create a hypothesis,

3) test the hypothesis, and

4) draw conclusions and refine the hypothesis.

☆】★【☆】★【☆】★【☆】★【☆】【☆】★【☆】★【☆】★【☆】★

i hope the answer helps you

(◕‿◕✿)

What is the relationship between population number and carrying capacity in a stable population

Answers

Answer:

As a population grows in an area, a population may experience the effects of increased densities. In a given area, is the maximum population size of the species that the environment can sustain is called the carrying capacity. Carrying capacity is determined by the amount of available resources (food, habitat, water).

Explanation:

hope this helps<3

In pigeons, the allele B produces blue feathers. The allele W produces white feathers. The B and W alleles are codominant. A blue and white pigeon BW is crossed with a solid white pigeon WW. What percent of the offspring are expected to be blue and white?

Answers

Answer:

The correct answer is - 50%.

Explanation:

Codominance is a type of inheritance that takes place when the genotype of an individual organism in heterozygous condition express traits of both alleles.

Cross between blue and white pigeon and pure white:

BW × WW and gametes will be B and W and W and W

     B         W

W   BW     WW

W    BW     WW

There are 50% of BW that is blue and white pigeons

During Mitosis, in which phase do two nuclei form?
A.prophase
B.anaphase
C.telophase
D.metaphase

Answers

C. I believe

In telophase, the cell is nearly done dividing, and it starts to re-establish its normal structures as

Which one is odd one out on the basis of respiration:
Amoeba, cockroach, earthworm, euglena

Answers

Answer:

Cockroach is you answer.

Explanation:

They do this by using a very efficient breathing system that uses air filled tubes, called trachea, to deliver oxygen directly to cells. Oxygen flows in as required into the tracheal system through valves on the insect, called spiracles. But, sometimes, they shut their spiracles and stop breathing.

why is the SI measurement system so important to the scientific community



enter the answer in the space provided

Answers

Answer:

without the ability to measure, it would be difficult for scientists to conduct experiment of form theories and also the chemical industry, it is also essential in farming, engineering, construction, manufacturing, commerce and numerous other occupation and activities.

In one plant species petal color follows INCOMPLETE DOMINANCE. If there
are alleles for both red and white plants, what would a heterozygous plant's
phenotype be?
Red
Pink
White
Red and White

Answers

Answer:

Pink

Explanation:

Incomplete dominance is when one allele is not entirely dominant over the other. The resulting phenotype of the heterozygote is intermediate between the two alleles. That means the flowers would be pink.

Red  - no, this would be true if red was dominant to white

Pink  - yes, this is an intermediate phenotype

White  - no, this would be true if white was dominant over red.

Red and White  - no, this would be true if the alleles were co-dominant and both equally but independently expressed.

Part 1: Which, if any, substance is soluble in water?
Part 2: Explain how the data helped you determine solubility for both substances for temperatures 20 °C to 80 °C

Answers

Answer:

Part 1: Sugar and salt

Explanation:

I only have the answer for part one sorry

In Hawaii, new land forms when lava erupts from Kīlauea volcano and hardens. The new land is without any living things. The first organisms to populate the surface of that new land are known as species. With time, a series of changes called succession occur on the new land through which it becomes colonized by a variety of organisms.

Answers

Answer:

Primary succession

Explanation:

The new landforms that are devoid of any vegetation have barren and rocky environment are colonized by the first plant species like grass and moss is called as primary succession which changes with time and occurs on new lands that not colonized yet and later on gets colonized a variety of organisms.

Some bacteria cells divide at a rate of

Answers

Answer:

Each daughter cell is a clone of the parent cell. When conditions are favorable such as the right temperature and nutrients are available, some bacteria like Escherichia coli can divide every 20 minutes. This means that in just seven hours one bacterium can generate 2,097,152 bacteria.

The primary source of energy for most organisms are

Answers

Answer: The Sun

3.1 The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.

Explanation:

Answer:

The main energy source for life is the Sun

Explanation:

what countries are developing destructive or defensive weapons in space?

Answers

Answer:

Anti-satellite weapons, which are primarily surface-to-space and air-to-space missiles, have been developed by the United States, the USSR/Russia, India and the People's Republic of China. Multiple test firings have been done with recent Chinese and U.S test program that destroy an orbiting satellite.

WILL GIVE BRAINLIEST!!!!!!!!
After a forest fire what would be the first change in a forest?

Pioneer species are established

A climax community is established

Wind carries seeds to the area and plants grow from these seeds

New soil forms from rock

Answers

c because

The first plants to move into the new bare ground after a wildfire are wildflowers or “weeds.” These fast-germinating, leafy herbaceous plants are also known as “forbs” or “ephemerals.” They quickly germinate, grow and produce a new crop of seeds.

Answer:

Pioneer species are established

Explanation:

A forest fire would represent the process of secondary succession.

In secondary succession, the first stage is the growth of pioneer species. The soil still remains, so no new soil needs to be made.

This rich soil allows for pioneer species to grow in the forest.

Deep-oceanic trenches are formed a subduction
Zones
at)
plate boundaries.
Divergent
Convergent
Transform
Pacific

Answers

Answer:

Convergent

Explanation:

In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.

Answer:

Im pretty sure its convergent!

Explanation:

how do organisms generate energy when oxygen is ot available​

Answers

Answer:

Fermentation releases energy from food molecules by producing ATP.

Organisms can generate ATP when oxygen is not available after glycolysis. The most common processes are alcoholic and lactic acid fermentation.

Which of the following is NOT one of the three types of neurons?

Group of answer choices

Peripheral

Sensory (or Afferent)

Motor (or Efferent)

Interneurons

Answers

Answer:

Sensory (or Afferent)

Explanation:

the answer is Peripheral

Organize the following groups of elements in order from least to most electronegative (Chromium, Zinc, Tungsten, lodine ) piz help me

Answers

Answer:Zinc 1.65

Chromium 1.66

Tungsten 2.36

Iodine 2.66

Zinc 1.65, Chromium 1.66, Tungsten 2.36 and Iodine 2.66

What is electronegativity?

The term "electronegativity" describes how attracted an atom is to the bonding electrons in molecules as opposed to other atoms.

American chemist Linus Pauling developed a set of dimensionless variables known as electronegativity values that vary from a little under one for alkali metals to a maximum of four for fluorine.

Electropositive elements are those that are on the left of the periodic table and have low electronegativities. We shall use the key attribute of the order of electronegativities F > O > N > C to explain the chemical properties of organic molecules.

Therefore, Zinc 1.65, Chromium 1.66, Tungsten 2.36 and Iodine 2.66.

To learn more about electronegativity, refer to the link:

https://brainly.com/question/24370175

#SPJ2

Explain in detail how changes in light intensity or carbon dioxide levels might change rates of photosynthesis.

Answers

Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply.

A species is a particular type of living thing that can reproduce by interbreeding among themselves.

True False

Answers

I believe the answer is True. I could be wrong but let me know!!
Other Questions
A m me gusta dibujar porque soy _____________ Which event caused the Hundred Years' War?Philip VI of France took English land,Edward III stole land from the FrenchO Edward III died before becoming king of France.O Philip VI claimed to be the rightful king of England, How has your understanding of the historical event in your essay changed as a result of your research? Describe one instance of a misconception or a wrong idea you had about your topic that has been corrected after researching and writing about it. What is the solution to 0.2 (4x - 8) = 0.4(12-2x) The enzyme catalase is important to many organisms. This enzyme convertshydrogen peroxide, which can be toxic to cells,to oxygen and water. The optimum pH at which it functions is 7.0. If the pH changes too much in either direction. the function of catalase decreases. Which is TRUE about catalase ?Catalase is a nucleic acid.catalase is affected by pH as it is a protein.Catalase can vaporize at room temperature.Catalase is a carbohydrate Alcohol is a ___ to the central nervous system What impact did the French Revolution have on the population of Louisiana?More people from Saint-Domingue moved to Louisiana.Fewer people from Saint-Domingue moved to Louisiana.Greater numbers of Louisianans fled to non-French settlements in the United States.Fewer numbers of Louisianans fled to non-French settlements in the United States. whats the order of solid liquid and gas from least particle motion to the most? Choose the correct pronoun to complete the sentence.Walking with Father andproved vigorous exercise for my younger brotherMe or I Suppose that, in a competitive market without government regulations, the equilibrium price of milk is $2.50 per gallon, and employees at grocery stores earn $21.50 per hour. Indicate the following whether each of the statements is an example of a price ceiling or a price floor and whether it results in a shortage or a surplus or has no effect on the price and quantity that prevail in the market. a. There are many teenagers who would like to work at grocery stores, but the minimum-wage law sets the hourly wage at $25.00. b. The government has instituted a legal minimum price of $2.30 per gallon for milk. c. The government prohibits grocery stores from selling milk for more than $2.30 per gallon. Maria incorrectly placed the decimalpoint when she wrote 0.65 inch for thewidth of her tablet computer. What is thecorrect decimal number for the width? N2+H2NH3is it balanced or unbalanced Timken rates its bearings for 3000 hours at 500 rev/min. Determine the catalog rating for a ball bearing running for 10000 hours at 1800 rev/min with a load of 2.75 kN with a reliability of 90 percent. help if u can please Write 3.01 repeating as a mixed number. 1. Determine the electron-domain geometry and molecular geometry for each of the following.a. SBr2b. PI4+c. IBr22. The following three compounds all have the same general formula, XF4. Compare the electron-domain geometries of these three compounds and explain what characteristic(s) of the central atom causes differences in geometry.a. SiF4:b. SeF4:c. XeF4: describe the energy conversion that occurs in a diesel engine Forty milliliter of a liquid has a mass of 80 grams. What is the density of this substance? A carpenter uses sandpaper on a piece of wood. Before, the wood felt rough. After, the wood felt smooth. Did the friction between the hand and the wood increase or decrease after using the sandpaper? Describe what the sandpaper did to the wood to make it smoother. Jane is planning to go on a camping trip. She purchases a bottle of mineral water, a pack of biscuits, a small tube of toothpaste, and a toothbrush from the supermarket near her house. The items that Jane has purchased from the supermarket are _____.