Answers
15)chlorine displaces bromine from potassium bromide
16) non-metals
6)vertical
7)similar properties
8)there are patterns
10)decrease
11)very reactive
12) hydrogen
18)lower density than air
19)better insulator
20)metalloids
Answer:
a b a
Explanation:
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Related Questions
Which of the following statements is true?
Protons and electrons are found in the nucleus.
Atomic weight and atomic mass are the same.
Isotopes have different numbers of electrons.
Weight depends on the amount of gravity.
Answers
Answer: Atoms that have the same number of peg holes may have similar chemical Although a proton has more mass than an electron, they both have the same amount of stability of the nucleus, and hence the atom's radioactivity,
Explanation:
Answer:
weight depends on the amount of gravity
Explanation:
an objects weight depends on it's mass and the strength of the gravitational pull.
What are examples of pollution that can be caused by agriculture?
Answers
Answer:
Nitrate from agriculture is now the most common chemical contaminant in the world’s groundwater aquifers. Aquatic ecosystems are affected by agricultural pollution; for example, eutrophication caused by the accumulation of nutrients in lakes and coastal waters impacts biodiversity and fisheries.
Answer: Agricultural Pollution is a waste or discharge resulting from farming that degrades or contaminates the surrounding environment. This pollutions comes from several sources and has adverse effects on many different types of organisms. The impact of this pollution can be reduced through certain practices. Causes are:
Explanation:
Pesticides and Fertilizers. To begin with, the earliest source of pollution has been pesticides and fertilizers. ...
Contaminated Water. ...
Soil Erosion and Sedimentation. ...
Livestock. ...
Pests and Weeds. ...
Heavy Metals. ...
Soil Erosion and Sedimentation. ...
Organic Contaminants.
The invention of the _____________ was considered the critical invention for easily classifying and organizing Stars by brightness, color, and temperature
Radio Telescope
HR Chart (Hertzsprung- Russell)
Infra red Camera
Nasa Star Modeling Programs
Answers
Answer:
radio telescope
Explanation:
We use radio telescopes to study naturally occurring radio light from stars, galaxies, black holes, and other astronomical objects. We can also use them to transmit and reflect radio light off of planetary bodies in our solar system.
A characteristic property is one that remains the same regardless of the amount of matter that is present.
Which of the following is a characteristic property of matter?
Group of answer choices
Density
Mass
Volume
Weight
Answers
Help its for science ill give brainilest.
Answers
Answer:
This equation reveals that the kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four.
Explanation:
Match the following items with the correct descriptions.
1. releases hydrogen ions
base
2. accepts hydrogen ions
eight
3. poor conductor of electricity
metal
4. shiny and lustrous
nonmetal
5. maximum number of electrons in first shell
acid
6. maximum number of electrons in second shell
two
Answers
Answer:
1.releases hydrogen ion acid
2.accepts hydrogen ion base
3. poor conductor of electricity non metal
4. shiny and lustrous metal
5. maximum number of electrons in first shell
two
6. maximum number of electrons in second shell
eight
How does melanin provide protection against skin cancer? use absorb
energy
light in your sentece
Answers
The melanin provides protection against skin cancer by absorbing harmful UV light from the electromagnetic spectrum.
What is electromagnetic spectrum?
The electromagnetic spectrum consists of radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.
The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.
In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.
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Can yall please help me with this
Answers
Answer:
option D
Explanation:
option D is the correct answer.
mechanical energy = kinetic energy + potential energy
mechanical energy = 40+ 60 = 100 joules .
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Match the following vocabulary words with the correct definitions.
1. amount of matter in an object
matter
2. anything which has mass and occupies space
molecule
3. measurement of the pull of gravity on an object
atom
4. molecule with different atoms chemically united
mass
5. chemical combination of two or more atoms
weight
6. smallest unit of matter
compound
Answers
2. Matter
3. Weight
4. Compound
5. Molecules
6. Atom
2. Calculate: For each object, substitute the values you know into the gravitational potential energy equation to solve for weight. Record each object's weight in the fourth (science)
Answers
Answer:
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Explanation:
Thomas thinks that acceleration means “speeding up.” Explain why this is incorrect.
Answers
Answer:
Explanation:
Thomas is incorrect because acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.
how the remains of plants and animals become fossil fuels. why are they considered nonrenewable resources
Answers
Answer:
It takes a very long time for things to become fossil fuel. Hence why it’s called non-renewable
Explanation:
Is this a scientific model? Use complete sentences to explain why or why not
Public Domain
Answers
Answer:
it is
Explanation:
what am i supposed to write here?
Answers
Answer:
I think u are supposted to find out the are the missing things
Explanation:
HELP plz
Are beaches made from erosion or deposition?
Answers
Answer:
Desposition
Explanation:
Answer:
Deposition
Explanation:
Beaches are wave-deposited accumulations of sediment.
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Answers
What would u write in a THESIS for Piney Woods?
GIVING BRAINLIST WHO EVER ANSWERS WITH PARAGRAPHS!
Answers
Answer:
Your thesis statement belongs at the end of your first paragraph, also known as your introduction. Use it to generate interest in your topic and encourage your audience to continue reading.
Explanation:
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Answer:
There is not a wrong answer for creating a thesis. The thesis reflects the many opinions you have towards the particular script. Use what you have learned from reading this and create a morale. If you have an opinion about it, try clearly stating it. Anything works. Just think of it as a bridge. Can it support the many ideas you have? REMEMBER stay on track and dont over think it!
Explanation:
How do organisms form carbon films?
Organisms turn into rock.
Residue is left on rocks when organisms decay.
Hollow forms are left in sediment by decaying organisms.
Organisms leave evidence of their activities, such as footprints.
Answers
Answer:
hollows forms are left in sediment by decaying organisms
Answer:
The answer is C. I just did the quiz and got 90%, but this is not the one I got wrong. Hope this helps!
Explanation:
How does this evidence help explain why the skin cancer rate is higher in Australia than in Brazil, even though the two countries get the same amount of sunlight?
Answers
Answer:
The Ozone layer
Explanation:
Ozone in the atmosphere can absorb ultraviolet light, which stops the light from reaching Earth’s surface, so people absorb less of it. Australia has less ozone than other places, like Brazil, and this is why Australia gets more ultraviolet light.
Which of the following would not be restricted (limited) by low levels of ATP?
Answers
In an exothermic reaction, chemical energy is converted to _____.
1.thermal
2. mechanical
Answers
Because exothermic is having to do with energy
The chemical reactions are generally of many types. The exothermic and endothermic reactions are important among them. In an exothermic reaction the chemical energy is converted to thermal energy. The correct option is 1.
What is exothermic reaction?The chemical reactions which proceed with the evolution of heat energy are defined as the exothermic reactions. The chemical reactions which proceed with the absorption of heat energy are called endothermic reactions.
In an exothermic reaction, system loses heat to surroundings. Since heat is given out in exothermic reactions, the enthalpy of the products will be less than that of the reactants.
In exothermic reaction, q will be negative and the enthalpy change will be also negative. In this reaction chemical bonds are broken and new bonds are formed. The chemical energy is converted to kinetic energy which is released as heat.
Thus exothermic reaction releases thermal energy.
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Stephen pours a glass of ice water. He gets a phone call before he can drink it. What will happen if he leaves the glass on the counter for 2 hours?
a heat will transfer from the water to the ice until both reach the same temperature
b heat will transfer from the water to the ice until the water is colder than the ice
c heat will transfer from the ice to the water and the ice will stay colder than the
water.
d heat will transfer from the ice to the water and the ice will get warmer than water
Answers
Answer:
d im pretty sure
Explanation:
CH4 + __O2 → CO2 + ___H2O
balance this equation
Answers
Explanation:
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Answer:
CH4+2O2→CO2+2H2O
Explanation:
Start with the least common atoms and leave things like H and O to the end.
You need to have the same number of methane reactants as carbon dioxide products because there is one carbon in each. I’ll set them both to 1 for now. O see two things with oxygen on the product side so we will have to juggle numbers a bit to figure out those. There is only H in the water so we’ll go there next. One CH4 gives 2 water molecules so we have that done now. At last we can tackle the O atoms. In two waters there are 2 and in the CO2 there are two more so a total of 4 O atoms in the products so we need two O2 molecules in the reactant side.
Hope this is useful.
What type of eclipse is pictured below?
Answers
label the following as a pure substance or a mixture.
Answers
Answer:
b
Explanation:
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Answer: a mixture
Explanation:
The wastewater in your home goes to one of three places. It can run into a home septic system, it can go to a centralized sewage treatment plant, or it might be directly discharged into a body of water. Where does your water go after it goes down the drain?
Answers
Answer:
Sewage Treatment
Explanation:
I am sorry if I got this wrong but if I did please correct me!
What is unique about obtaining water from an artesian well?
The water is heated by magma or hot rocks.
The water is found in an impermeable layer.
The water is under pressure naturally and no pump is needed.
A mechanical pump must be installed to bring water to the surface.
Answers
Answer:
The water is under pressure naturally and no pump is needed.
Explanation:
C
The water in artesian wells is under natural pressure and requires no pump.
What are artesian wells?They are wells that contain water that is under natural flowing pressure. Thus, there is no need of using artificial pumps in order to get the water to the surface.
Artesian wells are dug on lands with special geological features that enable the water to flow out under natural pressure.
Artesian wells differ from other types of wells that require mechanical or electric pumps before the water can get to the surface.
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A boat is traveling to the right at 300 N, the current is going to the left at 600N. What is the net force and direction?
Answers
Please help will give brainliest
Which of the following statements is TRUE regarding air resistance?
A fast-moving object experiences more air resistance than a slow-moving object
A slow-moving object experiences more air resistance than a fast-moving object
Answers
If u help me with this i will crown u brainlest and give u 50 points
Answers
Answer:
b d a
Explanation:
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7-b
8- b
9-b
10-a
11-b