Pls help anyone I don’t want to go to summer school and whoever helps god bless you
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Explain
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Sarah lives in a house at the bottom of a hill. Every time it rains, water collects next to her house. Which of the following is the best possible explanation for this?
a. The rainwater is undergoing deposition on the hill.
b. The rainwater is transpiring from the tree leaves.
c. The rainwater is evaporating at the top of the hill.
d. The rainwater is not infiltrating into the ground.
Answers
Answer:
d
Explanation:
the rainwater is not infiltrating into the ground.
Hello <3 I just need some help with periodic table of elements.
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What is the element's name and symbol? Sodium
Is it a metal, nonmetal, or metalloid?
Which family does it belong to?
How many protons, neutrons, and electrons does its neutral atom have?
Please help with the non-answered ones, following sodium please ^^
Answers
Answer:
11
Explanation:
An atomic number of 11 means this atom will have 11 protons. A mass number of 23 means 23 - 11 this atom will have 12 neutrons. Since this atom is neutral the positive protons must be equal to the negative electrons. This atom will have 11 electrons
Answer:
Sodium: Na
It is a metal
It's family is Alkali metals
Its atomic number is 11
It has 12 neutrons, 11 protons, 11 electrons
In the formula shown, what is the total number of atoms present?
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Answer:
your answer
24. hope helpful answer
HELP THIS IS SCIENCE (No links or I'll rip off your fingers)
Sam found two pieces of pure silver on two different continents and melted them.
Why did the two pieces of pure silver have the same melting point?
a. Silver is composed of the same types of atoms.
b. The melting point of all natural minerals is the same.
c. The melting point of all metals is the same.
d. Silver is a metal with high conductivity.
Answers
Answer:
D
Explanation:
Silver is a metal with high conductivity ....
Hope its right !
Which material undergoes radioactive decay?
all elements that have a half-life
all elements that contain atoms with protons
all elements that have turned into a new element
all elements that have a consistent number of particles
pls hurry I will give brainlyest to the first person and will be thiere friend
Answers
Answer:
all for nothn ginin all
Explanation:
what is known as electronegativity and mention how the electro negativity vary long the periods and down the groups..please i need answers quickly!
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Answer:
Electronegativity is a measure of an atom's ability to attract shared electrons to itself. On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group.
See below and attached image fir answer
Explanation:
Before I go on, I want to bring up that it's not just electronegativity that is affected as you go across a period or up and down a group. Ionization energy and atomic radius also fluctuate.
Here's a diagram:
images.slideplayer.com
images.slideplayer.com
As you can see, electronegativity increases as you go across a period, while electronegativity decreases as you go down a group. However, if this is true (which it is), we can also say many other factors occur, such as:
As you go across a period from left to right, electronegativity increases, ionization energy increases, and atomic radius decreases. In order for energy to increase, radius must decrease.
As you go up and down a period, electronegativity decreases, ionization energy decreases, and atomic radius increases. In order for energy to decrease, radius must increase.
Electronegativity is the force/energy required to acquire electrons and form negative ions during chemical reactions. (definition credit: from my computers dictionary).
Ionization Energy is the complete opposite. Ionization is the force/energy required to remove electrons from an ion. These strive to make cations while electronegative ions usually involve anions (hence the phrase electronegativity).
BRAINLIEST IF CORRECT (fill in the blanks)
The use of pesticides (blank) affect plant reproduction. This occurs because insects are important (blank) of plants. The loss of native insects (blank) a major problem in the United States and can even affect our food supply.
options for blank one: does or does not
options for blank two: pollinators, predators or consumer
options for blank three: is or is not
(please dont answer with stuff that doesn't make sense or "I needed points sorry")
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Answer:
Blank 1: does
Blank 2: pollinators
Blank 3: is not
Please only answer if you know the actual thing, don't search it up! Are these correct? :P
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Hey buddy I am here to help!
1. C
2. A
3. A & B
4. C
5. C
6. A
7. A
8. A & C
Hope it helps!
Plz mark brainlist!
Please help me. I need help
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Answer:
they both collided is one i guess
Explanation:
HELP ME FAST (I WILL MARK BARINLIEST IF CORRECT)
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Answer: the reason why the balance increases is because it is heavier so that's why it increases more
Explanation: the definition for balance is the ability to move or to remain in a position without losing control or falling. : a state in which different things occur in equal or proper amounts or have an equal or proper amount of importance.
Mass is the amount of matter something is made from. Big things are generally more massive than small ones. If you have a lump of iron or copper and take it to different places on Earth (or even the Moon) to measure it's mass, you'll always get the same result.
Weight is a measurement of how much the force of gravity acts on a given amount of mass. The force of gravity varies slightly all over Earth so, while your lump of iron has the same mass, its weight varies: it might weigh a little bit more in Bangladesh than it does in Tibet. What about on the Moon? Gravity is about one sixth the strength on the Moon as it is on Earth. So things weigh only one sixth as much on the Moon as they do on Earth, even though their mass is exactly the same in both places. Why are things heavier on Earth? Essentially because Earth is so much more massive than the Moon. It attracts objects with more force—and that gives them more weight.
hope this helps you!!!!!!!!!!!!!!!!!
Hope this helps
hey! i know this isnt chemistry but uh I dont think anyone gonna answer me in psychics and its due in 30 minutes... marking brainlest if correct- yeah...
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Answer:
A. Adding another bulb will make the two of them light a little less brighter since the electrical flow is divided into two making them work.
B. There is a possibility that the flow of electricity maybe little due to the thickness of the wire. There could also be a rise in the temperature of the cell and the bulb.
C. The Bulb will shine brighter because of the extra power or electricity provided! Also, if the voltage is too much, expect the bulb to burn out or sadly, explode.
BTW GOODLUCK!!
watch 9-1-1 on Fox!
Is sodium a metal, nonmetal, or metalloid?
Answers
In the provided query, sodium is a metal. Physical property of Sodium is, it is a soft, silvery-white and it is highly reactive metal that belongs to the alkali metal group of elements in the periodic table.
Metals are the elements that are shiny, malleable, ductile, and good conductors of heat and electricity in nature.
Chemical symbol of Sodium: Na
Atomic number of Sodium: 11
Atomic mass of Sodium: 23
Sodium belongs to Group IA in the periodic table.
Therefore, Sodium is a metal since it is found on the left side of the periodic table with other metals and has a tendency to lose electrons to create cations.
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Pls Hurry!
1. Breakfast Food Company A conducts a research experiment that shows that one of their products, Cereal A, is much healthier than cereals made by other companies. Is this an example confirmation bias? Why or why not?
2. John wants to test sports drinks to find the best one to drink during the soccer season. Every day after practice, John drinks a different sports drink and writes down how good it tastes. At the end of the week, he looks at his data and finds that Sports Drink A is the best. Is this confirmation bias? Why or why not?
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Answer:
1. It is confirmation bias because the company conducted a research experiment on their on products. They could have implemented or changed variables that are part of the experiment in order to get the results they would want. It is best to have a third party that don’t work for the company in order to conduct the experiment without biases
2. For this one it could be both yes and no. It could be that John really enjoyed Sports Drink A, so he purposely wrote down the data for the other drink lower. Here he was bias towards what he wants to have a better outcome. Maybe the sport drink A is from a company he likes many of their products. In order to not have confirmation bias, john should get a friend to give him the drinks without the labels, and the drinks should be the same color. That way he only tests the taste and not the way it looks. Both packaging and the color of the drink.
Ingrid drew a diagram to compare two ways in which biodiversity can be protected.
Which label belongs in the area marked Y?
has the goal of releasing animals in the wild
is often done in nature preserves
usually protects entire ecosystems
focuses on increasing the population of a single species
Answers
Answer:
The answer is often done in nature preserves
Explanation:
The region Y in the diagram represents the action that is is often done in nature preserves. Hence, option b is correct.
What are the ways of biodiversity protection?Captive breeding and habitat preservation are two important ways to protect biodiversity. Captive breeding involves the capture and breeding of endangered species in a controlled environment to increase their population size.
This method is used for species that are in danger of extinction in the wild due to factors such as habitat destruction, poaching, and disease. By breeding the species in captivity, the population can be increased and eventually released back into the wild to help restore the species' population.
Habitat preservation, on the other hand, involves protecting natural habitats from human activities such as logging, mining, and urban development.
By preserving habitats, the native species that rely on these habitats can continue to live and thrive, maintaining a healthy ecosystem. This is crucial for the conservation of biodiversity, as many species are dependent on specific habitats for their survival.
Hence, option b is correct.
Find more on captive breeding:
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The related to your question is given below:
The lines in an element's atomic spectrum result from
electron spins going in opposite directions.
energy that is spread out among an atom's electrons.
electrons moving from a lower to a higher energy level.
electrons moving from a higher to a lower energy level.
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The lines in an atomic spectrum indicates the transition of electrons from higher energy level to the lower energy level. Hence, option d is correct.
What is atomic spectroscopy?The investigation of the electromagnetic radiation that atoms absorb and release is known as atomic spectroscopy. Atomic spectroscopy, specifically the electromagnetic spectrum or mass spectrum, is used to determine the elemental compositions of substances since distinct elements have distinctive spectra.
Depending on the type of spectroscopy being utilized or the atomization source, it can be divided. The primary distinction in the latter instance is between optical and mass spectrometry. Although substantially more difficult, mass spectrometry typically provides significantly higher analytical performance.
Electrons can migrate between orbitals, but doing so requires them to either absorb or emit energy equivalent to the difference in energy levels between the quantized orbitals of their respective atoms.
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Which of the following best describes what must have happened in the past in an area with a large petroleum trap?
A.
Organic matter must have been buried and placed under intense heat and pressure until it became petroleum. Then, the petroleum must have collected inside an impermeable underground rock formation.
B.
Organic matter must have been exposed to intensely cold temperatures until it became petroleum. Then, the petroleum must have moved up to the Earth's surface through permeable underground rock formations.
C.
Permeable underground rock formations must have allowed the movement of organic matter deep into the Earth. Then, the organic matter must have been exposed to freezing temperatures until it formed petroleum.
D.
Impermeable underground rock formations must have blocked the movement of organic matter through the Earth's surface. Then, the organic matter must have decomposed to form petroleum inside the rock formations.
Answers
Answer:
Explanation:
de an impermeable underground rock formation.
B.
Organic matter must have bee
Please help me i need this done ASAP, this can get me an B, or a E in my class and i need a lot of help.
You and your family have decided to plan a trip to the Grand Canyon this summer. The pictures below show the features of a part of the Grand Canyon and where the Grand Canyon is located (red star). Explain how the Grand Canyon was likely formed and how it will continue to change in the future. In your response, be sure to include the following: Earth’s geologic processes that have likely shaped the landform
A general timescale of how long this process may have taken
Evidence from the unit and relevant unit vocabulary (mechanical/physical weathering, erosion, sedimentation)
Answers
The Grand Canyon began its formation about 5 my ago by the erosive action of the Colorado River. Its sedimentary layer composition reflects its history, keeping fossilized living forms that used to inhabit the area.
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The Grand Canyon formation began approximately 5 million years ago, thanks to the erosive action of the Colorado River.
The strength of the colorado river caudal, together with deglaciation and humidity factors, began to cause an uncontrollable erosion process in these lands that were previously part of the sea bottom.
Originally many strata and sediments accumulated at the bottom of the ocean. With time these extensive areas were exposed when the Rocoses Mountains got formed by the end of the cretaceous (70 million years ago).
Now, by looking at the composing layers, it is possible to understand its formation.
The Grand Canyon is almost entirely composed of sedimentary rock.
It was formed while sediments of sand and mud got deposited in thick layers at the bottom of the ocean and got compacted through the pass of time until becoming a rock.
Sedimentary rocks have been chronologically accumulating for years, reflecting the geological formation known as superposition.
According to this sedimentary deposition, we can distinguish the older rocks located in the deepest areas from the younger rocks in more superficial layers.
Each layer keeps fossilized organisms that used to inhabit this area in the past.
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You can learn more about the Grand Canyon at
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