Answers
Answer:
The order and arrangement of the planets and other bodies in our solar system is due to the way the solar system formed. Nearest the Sun, only rocky material could withstand the heat when the solar system was young. For this reason, the first four planets—Mercury, Venus, Earth and Mars—are terrestrial planets.
Explanation:
Related Questions
Which gas sample contains the most molecules ?
Answers
Answer:
CO2
Explanation:
(a) CO2; according to Avogadro's Hypothesis, they all contain the same number of particles, therefore, the heaviest molecule, CO2 (molar mass = 44), will have the greatest mass. (b) all the same; at the same temperature all gases have the same kinetic energy.
What are the two factors that can affect the current in a wire
Answers
Answer:
I know one of them is definitely material but the second one could be length or thickness....
Hope this helps
.....also I got my answer on google if you want to look it up to make sure I'm right......
I NEED HELP!!
In a stream, how are particles such as silt, clay, and sand carried?
A. as dissolve load
B. as bed load
C. in suspension
D. in solution
In a stream, how are particles such as silt, clay, and sand carried?
A. particles rubbing together
B. An increase is suspended materials
C. an increase in the dissolve load
D. changes in the stream 's carrying capacity
The path of a stream can vary considerably, depending on the slope of the land and the
A. bedload of the stream
B. amount of rainfall
C. amount of hummus present in the soil
D. Type of material through which the stream flows
The amount of dissolved material that stream water carries is usually expressed in
A. cubic meters per second
B. parts per million
C. cubic feet per minute
D. grams per 1000 gallons
The carrying capacity of a stream depends on both the velocity and the
A. Temperature of the water
B. amount of water in the stream
C. type of material through which the stream flows
D. minerals dissolved in the stream
Answers
Answer:
1 B
2A
#D
3B
1D
2B
3C
4A
A,C,A,B
C,A,C,A
C,A,A,B
Explanation:
Easy ive done this brings back memories
In ecosystem, particles are carried as bed load by rubbing particles together.Path of stream can be varied depending on amount of humus present in soil and is measured in cubic meters per second and carrying capacity depends on type of material through which stream flows.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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Which of the following might be included in a chemical
reaction?
a Molecules
b lons
C Pure elements
d All of the above
Answers
Answer:
D. All of the above
Explanation:
Molecules, ions, and pure elements might be included in a chemical reaction. Therefore, option (d) is correct.
What is a chemical reaction?A chemical reaction can be described as a reaction that brings the chemical conversion of one chemical substance to another chemical substance. The reactions cause chemical changes that include the rearrangement of electrons in order to create and break bonds between atoms.
The compound or molecules which are primarily utilized in a reaction are called reactants. Chemical reactions give products, which possess characteristics different from the reactants of the reaction.
Chemical reactions take place at a definite rate of reaction at a given concentration, temperature, and pressure. The rate of reaction increases with the rising temperature of the reaction as more activation energy is available for reactant molcules collisions.
Therefore, in a chemical reaction reactants and products can be present as Molecules, ions, and pure elements.
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What will most likely happen if you place a piece of metal in a base?
O A. The metal will turn into a salt.
O B. The metal will neutralize the base.
C. The metal will give off a gas.
O D. The metal will not react with the base.
Answers
Answer:D
Explanation:
The metal will not react
Learning Task No. 3: Write a short paragraph regarding the differences between
saturated and unsaturated solutions.
Type of Solution
Explanations about the differences of
the two solutions
Saturated solution
Unsaturated solution
Answers
Answer:
See explanation
Explanation:
A saturated solution is a solution that contains just as much solute as it can normally hold at a given temperature in the presence of undissolved solute. An unsaturated solution contains less solute than it can normally hold at a given temperature. A saturated solution can not dissolve more solute whereas an unsaturated solution can comfortably dissolve more solute until it attains saturation at a specified temperature.
There are 70 fisherman and 5 sea bass in the lake. Are sea bass considered a limiting factor?
Answers
Answer:
yes
Explanation:
Which statement correctly describes protons and neutrons? *
O They have the same mass and the same electrical charge.
They have different masses but the same electrical charge.
O They have different masses and different electrical charges.
They have the same mass but different electrical charges.
Answers
Answer:
They have the same mass but different electrical charges.
Explanation:
Protons have a positive charge while neutrons have a neutral charge. Although they have different charges, they have the same amount of mass.
The protons and neutrons have the same mass but different electrical charges. THerefore, option (D) is correct.
What is a proton?A proton is described as a stable subatomic particle, a chemical symbol with +1e elementary charge. The mass of the proton is approximately equal to the mass of the neutron but 1836 times the mass of an electron.
Protons and neutrons are jointly together termed "nucleons" each with masses of approximately one atomic mass unit (a.m.u.). There will be one or more than one proton present in the nucleus of an atom. There is an attractive electrostatic central force that holds the atomic electrons.
The number of protons in the atom is referred to as the atomic number and is expressed by the symbol Z. Since each element in the periodic table has a unique number of protons, determines the chemical characteristics of the element.
As the neutrons present in the nucleus of an atom are neutral and do not carry any charge while the protons are positively charged.
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what form of heat transfer makes warm air rise?
Answers
Which is NOT a shape of epithelial cells?
A.Cuboidal
B.Columbar
C.circular
D.squamous
Answers
plssss helppp
will mark brainliest
Answers
Answer:
high melting point
Explanation:
high melting point
This is a change in an objects motion caused by an unbalanced force
Answers
Answer:
This is a change in an objects motion caused by an unbalanced force.
- Acceleration
Answer:
Pressure
Pressure is done when a force is applied to an object to course a motion
The radioactive isotope used in the dating of fossils thought to be less than 40,000 years old is ________________.
Fill in the blank.
Answers
Answer:
The answer is Radiocarbon
Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to another person question then answer it please just dont say idk. im beggin you!!! :(
You are making a measurement using meters and find that the number value is 10. What is the correct way to write this scientific measurement?
A. meters
B. 10
C. 10 meters
D. Meters 10
Answers
Answer:
The answer is...C
Explanation:
10 meters... because you won't just say your answer is ten or neither can just put meter.
The correct way to write this scientific measurements is 10 meters
an example of a physical change that does not involve any changes in CHEMICAL PROPERTIES. Explain which physical properties have changed and list a chemical property which has not changed.
Answers
Answer:
Ripping a Paper
Explanation:
Physical Properties changed - The size has decreased, and the shape has changed.
Chemical property- Flammability
What makes up an isotope’s mass number?
A.) The number of protons and neutrons
B.) The number of protons, neutrons, and electrons
C.) The number of stable isotopes of an element
Answers
Answer:
A
Explanation:
Meh peepss halp will mark brainliest!!!! u-u
Answers
Answer:
The three parts of the cell theory are as follows: (1) All living things are made up of cells, (2) Cells are the smallest units (or most basic building blocks) of life, and (3) All cells come from preexisting cells through the process of cell division. ... Today, the cell theory is considered the foundation of biology.
Explanation:
hope this help.. brainliest???
Answer:
i wanna give brailiest to the person at the top!
Explanation:
Salt is a common example of a(n) _____________ bond, while Water is a common example of a(n) _____________ bond.
Answers
Covalent bonds
Answer:
salt is ionic bond and water is Polar covalent bond
Explanation:
WILL GIVE 20 POINTS AND MARK BRAINLIEST IF YOU ARE RIGHT!!
Fill in the next verse of the song:
I see a little silhouetto of a man ________________
Answers
How do the products of chemical reactions compare to their reactants? Question 5 options: The products usually weigh more than the reactants. The products often have completely different properties than the reactants. The products usually have more atoms than the reactants. The products are usually more toxic than the reactants.
Answers
Answer:
The products often have completely different properties than the reactants.
Explanation:
In a chemical reaction, the products are often completely different from the reactants.
When chemical reactions takes place, the species rearranges to form new bonds and to attain stability.
Therefore, the new products formed usually have completely different properties when compared to the reactants.
Also, in chemical reactions, mass is always conserved. The mass of the products and reactants are usually the same.
7th grade help me plzzzzzz
Answers
Do Compounds always have the same physical properties as the elements they are made of
Answers
Answer:
No
Explanation:
The physical and chemical properties of substances are usually difference from those of the elements that makes them up.
Compounds are substances composed of two or more kinds of atoms joined together in a definite grouping.
The properties of a compound are distinct and different from those of the individual elements that are combined in its make-up.
PLEASE HELP
The Octet Rule explains why
A. Atoms form chemical bonds to create compounds
B. The electronegativity of fluorine is higher than chlorine
C. Ionic compounds have high boiling and melting points
D. Valence electrons are used in chemical bonding
E. Valence electrons are used in chemical bonding
It's not D that's all I know. Please answer with an explanation if you know.
Answers
Answer:
Explanation:
E
which statement is a scientific law
Answers
Answer:
It is b
Explanation:
The rate of change of position (or distance traveled) with respect to time"
Answers
Answer:
Velocity...I believe
Answer: velocity or meters per second
Explanation:
which best represents a compound?
Answers
Answer:
The one above B
Explanation:
The one above B is most represents a compound because compounds are chemically bonded and are always near each other.
Why do restaurants sometimes serve free salty snacks like popcorn, crackers, or peanuts? Are they just being nice?
Answers
Answer:
it most likely goes with your meal
Explanation:
hope this helps
7th grade help me plzzzzzzzzzz
Answers
How many grams of H2SO4 are needed to react with 78.86 grams of AI(NO3)3 ?
I
Answers
Answer:
53.18 grams of H₂SO₄ are needed to react with 78.86 grams of Al(NO₃)₃.
Explanation:
The balanced reaction between Al(NO₃)₃ and H₂SO₄ is:
2 Al(NO₃)₃ + 3 H₂SO₄ → Al₂(SO₄)₃ + 6 HNO₃
By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of reagents are required:
Al(NO₃)₃: 2 molesH₂SO₄: 3 molesBeing the molar mass of the elements:
Al: 27 g/moleN: 14 g/moleO: 16 g/moleH: 1 g/moleS: 32 g/molethen the molar mass of the reactants are:
Al(NO₃)₃: 27 g/mole + 3*(14 g/mole + 3*16 g/mole)= 213 g/moleH₂SO₄: 2*1 g/mole + 32 g/mole +4*16 g/mole= 98 g/moleThen, by reaction stoichiometry, the following reagent mass amounts are required:
Al(NO₃)₃: 2 moles* 213 g/mole= 436 g H₂SO₄: 3 moles*98 g/mole= 294 gThen you can apply the following rule of three: If by stoichiometry 436 g of Al(NO₃)₃ react with 294 g of H₂SO₄, 78.86 g of Al(NO₃)₃ with how much mass of H₂SO₄ will it react?
[tex]mass of H_{2} SO_{4} =\frac{78.86 grams of Al(NO_{3} )_{3}*294gramsofH_{2} SO_{4} }{436 grams of Al(NO_{3} )_{3}}[/tex]
mass of H₂SO₄=53.18 g
53.18 grams of H₂SO₄ are needed to react with 78.86 grams of Al(NO₃)₃.
Can y’all give me 5 facts about this
Answers
Conglomerate rocks are colorful and attractive; however, it is rarely used as ornamental stone for interior use because of its unreliable physical strength and durability.
Conglomerate has very few commercial uses, though it can be crushed to make a fine aggregate that can be used when a low-performance material is needed.
Conglomerate forms where sediments of rounded clasts at least two millimeters in diameter accumulate. Because of the large size of the clasts, it takes a very strong water current to transport and shape the rocks. As they tumble through the running water or moving waves, they form their rounded shape.
These rocks can be found in sedimentary rock sequences of all ages. They probably make up less than one percent by weight of all sedimentary rocks.
