Which two of the three elements have SIMILAR CHEMICAL PROPERTIES (valence electrons)?
1. Li - Na - Mg
2. F - Br - O
3. P - As - Se
4. Ra - Ba - Cs

Answers

Answer 1

Answer:

1. Li - Na

2. F - Br

3. P - As

4. Ra - Ba


Related Questions

In what ways are the ingredients in a cake like the gases in Earth’s atmosphere?

Answers

Answer:

because there are different types of gases and layers of the atmosphere on earth.

Explanation:

Why is resource management of forest important for economic

Answers

Answer:

timber, plant medicinal resources, genetic materials, and recently a source for generating carbon credits.

Explanation:

How are DNA tests useful to solve a more mystery? Explain in your own words.

Answers

Explanation:

forensic scientists can compare DNA found at the crime scene from blood or hair to DNA samples taken from suspects if there is no match they may be able to rule out that suspect. if there is a match police would likely want to take a closer look.

1. How do you think rapid changes in the chracteristics of habitats affect the niches of
animals occupying that habitat?

Answers

Answer:

The rapid changes would make an organism change their land, environment around them, and the food web

When the habitat of the animals living in it changes, both the animals and the habitat change. It changes the biotic and abiotic factors of the niche and ecosystem. Habitat is part of a niche.

What is the impact of the changing habitat?

Niche is a broad space in which the particular animal roams, searches for food, and reproduces, but habitat is a part of the niche where the animal spends most of its life. Human interventions, such as cutting down forests for industry, roads, and so on, have an impact on wildlife. Due to this, the temperature of the earth keeps on increasing, resulting in climate change, global warming, the melting of ice, a rise in water levels, etc.

If these changes happen, then animals will have difficulty living in their habitat. The environment will not be favorable for living, and both abiotic and biotic factors will be disturbed, such as the fertility of the soil, which is affected by fewer trees. Other animals affect by this change too.

Hence, in this way, the change in habitat changes the niche.

Learn more about the habitat and niche, here

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How do we detect the cosmic microwave background radiation?

A. by looking for a glow in the night sky

B. by looking for radiation at the blue end of the spectrum

C. through magnifying glasses

D.through radio telescopes

Answers

Answer:

D. Through radio telescopes

Explanation:

The way we are able to detect them is by radio telescopes

WILL GIVE BRAINLIEST
The region of the earth where ecosystems interact

Answers

the answer is biosphere

Including Alaska and Hawaii, which additional biomes are found in the United States?

Answers

Answer:

Temperate grassland, desert, temperate woodland, and shrubland, northwestern coniferous forest and temperate forest.

Explanation:

Answer:Temperate grassland, desert, temperate woodland, and shrubland, northwestern coniferous forest and temperate forest.

Explanation:

Two heterozygous tail pea plants with the same genotype, Tt, are crossed. What is the probability that the offspring of this cross will have a heterozygous genotype?

A. 50%
B. 25%
C. 100%
D. 75%

Answers

I’m pretty positive it would be C. 100%

Water is polar. What types of bonds does this allow water to make with other water molecules?

Answers

Answer:

Covalent bonds.

Explanation:

Water forms polar, covalent bonds with other molecules because of the uneven electron charge.

Which events take place in the light-dependent reactions of photosynthesis?
ERRE
O Light energy is converted sugars; sugars are broken down for energy.
O Light energy is captured by plants, light energy is used to make sugar.
O Light energy is converted to chemical energy; chemical energy is used to make sugar.
O Light energy is captured by plants; light energy is converted to chemical energy.
W
Markthina

Answers

Answer:

d

Explanation:

the dispersal of ink in a beaker of water is an example of
a. endocytosis
b. diffusion
c. active transport
d. osmosis

Answers

The answer is diffusion.

Answer:

A

Explanation:

Diffusion is the answer:)))

9. The phases of the moon are the regular changes in how the moon looks from Earth. In which phase is the moon completely visible from Earth?



Group of answer choices

A. Full moon

B. New moon

C. Waxing gibbous

D. Waning crescent

Answers

Answer:

A, full moon

hope this helps ;)

In the full moon phase, the moon is completely visible from the Earth. Therefore, the correct option is A.

What are the phases of the moon?

The phases of the moon results from the changing position of the moon relative to the Sun and the Earth.

There are 8 phases of the moon:

1.) New moon-The moon is between the sun and the earth, with its illuminated side facing away from us.

2.) Waxing crescent-The moon is partially illuminated increasing in size, appearing as a crescent shape.

3.) First quarter-The moon is 90 degree east of the sun and appears as a half moon shape.

4.) Waxing Gibbous-The moon appears as gibbous shape.

5.) Full moon-The moon is on the opposite side of the earth from the sun, and its entire illuminated side is visible.

6.) Waning gibbous-The moon is partially illuminated and decreasing, appearing as a gibbous shape.

7.) Third quarter-The moon is 90 degree west of the sun and appears as a half moon shape.

8.) Waning crescent-The moon is partially illuminated and decreasing, appearing as a crescent shape.

The cycle of phases repeats approximately every 29.5 days, from new moon to new moon. Therefore, the correct option is A.

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how does air pressure affect weather

Answers

Answer:

Hewo, Kiluawa (sorry if i spelled it wrong)

Explanation:

High Pressure

Basically, high pressure occurs in an area if the atmosphere over that particular area becomes heavier. As a result, the heavy air above will come down to the Earth’s surface. And the air present in that area will move away to create space for the heavy air.

Commonly, the warmer months experience high pressure. You’re more likely to enjoy a comparatively dry and stable weather pattern in those months. Besides, you’ll find the skies in high pressure areas very clear. You’ll also feel a gentle breeze there that will cool down the surrounding areas.

Low Pressure

On the other hand, the air above a low pressure area is comparatively much lighter than the air below. As the heavy air on the Earth’s surface cannot go further below, it pushes away the lighter air above. As a result, a vacuum is created on the surface level and the air in the surrounding areas rushes towards it to fill up the void space.

Meanwhile, the rising air starts to cool down and form clouds in the sky. These clouds then come down to the Earth in the form of rain. Sometimes, snow is also formed depending on the temperature of the surrounding areas.

In general, colder months of the year experiences more low pressure situations. By now, you probably can guess why. The cold air on the surface level is heavier than the air above. And these low pressure areas are the reasons behind unstable weather conditions like snow, ice, rain, storm, etc.

Hope This Helps!

If you are on the top a mountain and drop an apple, it
will fall to the ground, even though the apple is
gravitationally attracted to you. Why?
a)Earth is larger and has a much stronger
gravitational pull
b) Apples always fall down
C) Centrifugal forces pull the apple to the Earth
and that is stronger than your gravitational pull
d) None of these

Answers

A. Earth does have a bigger gravitational pull because Planet Earth is huge and it needs and has all the gravity.

What causes cells to become specialized??? ✨

Answers

Answer:

Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.

Explanation:

Hope that helped if it did please give me brainiest Thanks :3 <333333

I’m not sure what the answer is.

Answers

Answer:

The answer is A

Explanation:

Its A, it includes 5-carbon sugars.

In 2019, what was the total income for all agriculture commodities?

Answers

Answer: Cash receipts for all commodities are forecast to decrease $12.3 billion (3.3 percent) to $358.3 billion (in nominal terms) in 2020. Total animal/ ...

Explanation:

Idkjddbjdbdusnsjdjdbsjksbssbbs

Need help quiz is here and this is the only answer I don’t know

Answers

Answer:

activation energy is the answer

Can anyone help please

Answers

Answer:

Although secreted by the pancreas, glucagon directly impacts the liver as it works to control blood sugar levels. Specifically, glucagon prevents blood glucose levels from dropping to a dangerous point by stimulating the conversion of stored glycogen to glucose in the liver.

Explanation:

:) (i'm not supposed to tell you the answer but i can help you)

HELP ON NUMBER 5 IMPORTANT

Answers

Answer:

FLVS?

Explanation:

number 1 stop going on brainly and asking people for answers and 2 the answer is a 25% chance that the offspring with be a chesnut colored.

What does a food chain show the flow of between living things?

water
carbondioxide
oxygen
energy

Answers

Answer:

energy

Explanation:

cuz i did science

the food chain shows the flow of energy

Assignment: 03.01 Seasons of Change

Answers

Answer:

What's the question? There's no specific question there

Pilar just won a coveted award at work, even though many of her colleagues told her she didn't have a chance of getting it. While standing on the stage at the company's banquet dinner, she wanted to gloat and call out the people who didn't support her, but she knew this would not be appropriate. Instead, she stayed positive and smiled, thanked all of her colleagues, and graciously accepted the award. Pilar ended up conforming to this particular social setting's _____.

Answers

Answer:

Pilar ended up conforming to this particular social setting's negativity.

Explanation:

Pilar's co-workers do not show support for the causes in which she participates, on the contrary, they underestimate her and denigrate the capacities she has and the possibility of being rewarded for the hard work she intends to do. This does generate an environment full of negativity, which can harm everyone involved. The fact that Pilar, overcoming this environment, winning the prize and giving a sincere speech, regardless of what her colleagues said, shows that she got used to and adapted to a place with this type of negativity.

what is the process of transferring sea water to fresh water?​

Answers

You can either boil it and it removes the bacteria by killing it with heat or by using a small amount of bleach or chlorine in it to kill off the bacteria. VERY LITTLE

Answer:

Desalination

Explanation:

desalination is a technique where the excess salt are removed from salt water or brackish water.

please help asap i will mark brainliest

Answers

Answer:

I would say the 3rd one because itakes the most sence

Answer:c because the compound has formed through 2 gases that made up a liquid the oxygen has bigger in size and is more abundant in mass while hydrogen is smaller but more abundant in numbers

Explanation:

How does Interphase relate to the 4 stages of the Cell Cycle?

Answers

Answer:

Interphase is the first stage of Mitosis. This is the cell cycle. Interphase is when the DNA is replicated

Hoped this helped :)

Do molecules crossing a membrane using active transport go WITH or AGAINST the concentration gradient??​

Answers

Against

The concentration gradient is the probability of where ions will go freely to try and make the concentration the same in each part of the cell. When ions want to cross into the membrane, most of them will have to go against the concentration gradient and will use energy to do so!

Hope that helps :)

Building of dams and interstate highways are examples of


Human Environment Interaction


Location


Place


Region


Movement

Answers

Answer:

Human environment interaction

Explanation:

OK so thats the answer hope it helped ⇔ I really do

What is the structure for each macromolecule (what does each one look like?)

Answers

Answer:

Within cells, small organic molecules are joined together to form larger molecules. These large macromolecules may consist of thousands of covalently bonded atoms and weigh more than 100,000 daltons. The four major classes of macromolecules are carbohydrates, lipids, proteins, and nucleic acids.

A type of asexual reproduction in which a prokaryotic cell replicates its DNA and divides in half, producing two identical daughter cells, is called

binary fission
conjugation
mitosis
transduction

Answers

Answer: binary fission, form of sexual reproduction in which paramecia and some prokaryotes exchange genetic information. I THINK this is right!

Answer:

The answer is binary fission.

Explanation:

Binary fission, asexual reproduction by a separation of the body into two new bodies. In the process of binary fission, an organism duplicates its genetic material, or deoxyribonucleic acid (DNA), and then divides into two parts (cytokinesis), with each new organism receiving one copy of DNA.

Hope that helps you!!

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What is the protagonist in the short story Prey? What are the coordinates of the image of ABC after a dilation with center (0, 0) and a scale factor of 12A= ,B= ,C= ,HELPPPPPPP eleven times one number is 9 more than 8 times another number. the first number minus four is half the second number. find the numbers. 5x - 2 = 8 + 5ySolve for y and show work. The masses of two objects are compared during a physics experiment. It is determined that object A has a mass of 410^3 grams and object B has a mass of 410^4 grams. How many times larger is the mass of object A than the mass of object B?0.10.41040 -4y-4+(-3) can you answer this for me please In Passage 1, how does the author compare the issues of tax increases and advertising on buses?A)They are both actions that require safeguards.B)They are both issues of controversy in school districts.C)They are both possible approaches to dealing with budgetary concerns.D)They are both present problems that cannot be ignored by state representatives.(THE paragraph)1 Tight school budgets could soon translate into Missouri school districts selling ad space on yellow school buses.2 Missouri state Rep. T.J. Berry, R-Kearney, says his billHB 224isnt a cure-all by any stretch. But legalizing ads inside and outside the buses would give school districts one additional way to raise money in these tough times.3 Every single school district has had to deal with budget concerns, Berry said last week. And generally speaking, the way they have had to deal with those has been cuts or tax increases.4 The school bus is something that is already out there and paid for, he said. His bill would permit districts to generate a modest stream of income from their buses.5 Few question the need for finding additional funds when it comes to educating children, but at least two groups think the school bus exteriors should remain ad-free.6 There is no such thing as free money, said Josh Golin, associate director for the Campaign for a Commercial Free Childhood. There are real costs to this: the price of selling out your students to advertisers.7 Students dont need the first and last message they receive from their schools each day to be advertisements, Golin said. Students boarding a bus are certainly a captive audience.8 The National Association of State Directors of Pupil Transportation Services opposes advertising on safety grounds. Obscuring the recognizable school-bus yellow exterior with ads and distracting other drivers present a safety problem around school buses that cannot be ignored, the group said in its position paper.9 National studies have shown that anything that diverts a drivers attention from the road can pose a hazard, opponents say.10 And a big yellow bus doesnt distract? Berry asked.11 Several years ago in Indiana, a Department of Education lawyer suggested that allowing advertisements on buses would invite First Amendment challenges by spurned advertisers, the group noted.12 Berry said the bill would limit the types of advertising that would be allowed.13 The regulations would prohibit ads that contain obscene or sexual material, or messages associated with gambling, tobacco products, alcohol, and political campaigns or causes. The ads could not promote drug use or any illegal activity or antisocial behavior. They cant contain harmful, discriminatory, false, misleading or deceptive messages.14 There are a lot of safeguards being built in, he said.15 Berry emphasized that the space reserved for the ads would be very limited, meaning toward the back of the bus.16 By 2012, nine statesArizona, Colorado, Massachusetts, Nevada, New Jersey, New Mexico, Tennessee, Texas and Utahpermitted advertising on the exterior of school buses, according to the Campaign for a Commercial-Free Childhood. Several, including Missouri, considered it last year.17 The bill made it out of the Missouri House last year but did not clear the Senate, Berry said. He acknowledged that the idea was very controversial. Which cells in your body undergo cellular respiration? !PLEASE HELP! read the short story Condensed Milk and help me find the answer. Q: How does the author order events? &Explain how the authors choices regarding structure create tension and/or add to the meaning. 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