Answer:
B. how fast the particles are moving
Explanation:
Temperature measures the average kinetic energy of system as result of the thermal - heat energy present in the reaction or a body.
Often times, temperature is the degree of hotness or coldness of a body and this translates to an increase or decrease in the molecular speed.
Number of particles in a body is the mass of the body. How tightly packed the particles are corresponds to the density of the body.which statement is a scientific law
Answer:
It is b
Explanation:
What is the goal of cellular respiration? A. To produce food for the plant B. To produce ATP energy C. To create water D. To facilitate photosynthesis
Answer:
B
Explanation:
The goal of cellular respiration is to produce energy (in the form of ATP) for the cell.
During cellular respiration, food materials are broken down metabolically and the energy locked-up in them is extracted for day-to-day usage by the cell. This energy is usually in the form of the energy currency of the cell - Adenosine Tri Phosphate. The cellular respiration could either be in the presence of oxygen (aerobic) or in the absence of it (anaerobic).
Correct option: B.
Which statement best describes two functions of blood?
Answer:
flows through your viens and moves to your blood vesils
Explanation:
its how blood operates
what is (+14)-(-9)=
Answer:
23
Explanation:
Simply remove the brackets and add 14 and 9
There is free rotation about the carbons of ethane but not th
of ethane. This is due to the fact that
A. the carbons in ethane are round
Balkenes do not rotate
C. the carbons in ethane are linked by double bonds
D. the carbon in ethane are smaller than those of ethane
Answer:
C. the carbons in ethene are linked by double bonds
Explanation:
The reason for the lack of free rotation about the carbons of ethene is that they are linked with with double bonds.
In single bonds afforded with the ethane compound, there is free rotation.
The double bonds confer a special restriction on the rotational potential of the bonded atoms round the carbon.
This occurs when a liquid reaches its boiling point.
evaporation
condensation
vaporization
sublimation
melting
1 points
Save Answd
Answer:
evaporation
Explanation:
the answer evaporation because when it hits the highest point it evaporation ig?? lol
A wave that travels at the speed of light and consists of a combined electric and magnetic effect
Answer:
Electromagnetic waves
Explanation:
The description given is that of an electromagnetic wave.
Electromagnetic waves are propagated by the vibration of electrical and magnetic fields in a perpendicular direction to one another.
These waves generally travel at the speed of light. They are made up of magnetic and electric fields. They do no require a material medium for their propagationThey can pass through a vacuum.DNA bases are attached to _____.
sugar molecules
both sugar and phosphate molecules
phosphate molecule
Answer:
both sugar and phosphate molecules
Answer:
Both sugar and phosphate molecules
Explanation:
A candy bar has ____ energy.
A. Kinetic
B. Potential
Answer:
Potential energy
Explanation:
A candy bar has carbs, sugars, and calories which are potentially going to be used as energy in a body.
Answer:
B. Potential
Explanation:
Because the candy bar is sitting still.
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.
Answer:
Explanation:
E
Can y’all give me 5 facts about this
Why the planets are arranged as they are in our solar system.
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:
argon is an inert gas give reason.
Answer:
You're right
Argon is an inert gas.
Explanation:
Answer:
Argon is in zero group and it has octet structure so argon will not react with any compound
How would an element on the left side of row 2 of the periodic table differ from an element in the middle of the same row?
A. The element on the left would have more atomic mass.
B. The element on the left would have less malleability.
C. The element on the left would have a lower melting point.
D. The element on the left would have no metallic properties.
Answer:
C
Explanation:
An element on the left side of row 2 of the periodic table differ from the middle element of the same row because they have a lower melting point.
What is melting point?It is that point where solid state of a substance changes to liquid state.
In the second row of period table as we move towards right from the left side i.e. from Lithium (Li) to Neon (Ne) atomic mass of the elements increases simultaneously melting point of that elements also increases, due to bulkiness.
Hence option (c) is correct .i.e. elements on the left would have a lower melting point.
To know more about the melting point, do visit the below link:
https://brainly.com/question/40140
would dissolving sugar in water be a physical or chemical change
Answer:
Physical!!!!!
Good Luck!
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 ________________
Which gas sample contains the most molecules ?
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.
8
Calcium carbonate (limestone) decomposes when heated.
Caco, + CaO + CO2
b) Calculate the volume of carbon dioxide produced if 10 grames were decomposed.
Explanation:
Equation -
CaCO₃ → CaO + CO₂
molecular masses of -
CaCO₃ = 40+12+16×3 = 100 g/mol
CaO = 40+16 = 56 g/mol
CO₂ = 12+16×2 = 44 g/mol
Now,
If 100 g of CaCO₃ is decomposed then it produces 56 g of CaO and 44g of CO₂
Then,
If 1 g of CaCO₃ is decomposed then it produces 56/100g of CaO and 44/100g of CO₂
Now,
Here in question, 10g of CaCO₃ is decomposed
It means, It produces
56/100 × 10 = 56/10 = 5.6 g of CaO and
44/100 × 10 = 44/10 = 4.4 g of CO₂
Now,
we get that 10 g of CaCO₃ on burning produces 4.4 g of CO₂
we need to calculate volume of 4.4 g of CO₂
mole = mass/Gram molecular massThen,
mole = 4.4/44 = 0.1
Now,
volume = mole × 22.4 (in Litres)
= 0.1 × 22.4 = 2.24 L
Hence,
2.24 L of CO₂ will be produced when 10g of CaCO₃ decomposed.
Which is NOT a shape of epithelial cells?
A.Cuboidal
B.Columbar
C.circular
D.squamous
what type of data do you need to find the density of an object
what is the electron configuration for lithium
Answer:
2,1
Explanation:
the electron configuration is 2s1
Which characteristic is common to all inner planets?
rings
moons
rocky surfaces
slow revolutions
|` ` All Inner Planets Have : ` `|
|` ` Rocky Surfaces! ` `|
|` ` Mark Brainliest for 10 Thanks <3 ` `|
Answer:
the answer is c
Explanation:
rocky surfaces
sedimentary rocks that are formed from physical/chemical process within the earth are given the general name of
Answer:
cementation
Explanation:
part of the rock cycle
The sedimentary rocks that are formed from physical/chemical process within the earth are given the general name of chemical precipitation.
What do you mean by the chemical precipitation ?Chemical precipitation is the process of turning a liquid into a solid by either making the liquid insoluble or making it very saturated.
Chemical precipitation, which starts when water moving through rock dissolves part of the minerals, creates chemical sedimentary rocks. When the water evaporates, the minerals are finally redeposited or precipitated after being moved away from their source.
A chemical compound that develops when the solution it was dissolved in, often water, evaporates and leaves the compound behind is known as a chemical precipitate.
Thus,Chemical precipitation is the process that gives rise to chemical sedimentary rocks including limestone, halite, and flint.
To learn more about the chemical precipitation, follow the link;
https://brainly.com/question/13859041
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How long does it take to melt a single brick, how many mins?
Answer:
it depends upon the material used to make the brick
plssss helppp
will mark brainliest
Answer:
high melting point
Explanation:
high melting point
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
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
Examine the layers of rock. How does layering provide evidence for determining geologic age?
Answer:
the deeper you go down in to the rock the older the fossils get.
Explanation:
layering can provide evidence because the deeper you go down in to the rock the older the fossils get. So when the scientists go in to the rock they can say what animals lived in that time and what animal was the oldest.
I need help please （o´・ェ・｀o）
Tantalum: 2
Niobium: 3
Dubnium: 1
Please make brainliest ?
A student cut out a spiral shape from a piece of tissue paper and hung it from a string over a light bulb. Nothing happened. Next the student turned on the light. After a few seconds, the spiral began to turn above the light. Which of these best explains what happened?
Answer:
See explanation
Explanation:
Initially, when the paper is hung over the light bulb, we observe that nothing happens at all.
As time goes on, air surrounding the lamp begins to heat up. Remember that hot air is lighter and less dense than cold air. Air surrounding the lamp which has now become hotter and less dense rises and pushes on the spiral. This causes the spiral to begin to spin.
Match each term with the correct description below.
1. what is a charged atom that has gained one or more electrons?
2. What substance is held together by ionic bonds?
3. What metal and nonmetal transferrers electrons?
4. What particle has electrons that are shared unequally?
5. What forms when atoms share electrons by covalent bonds?
6. What two nonmetals share electrons?
7. What charge atom that has lost one or more electrons?
8. What two or metals "pooling" electrons?
a. metallic bond
b. covalent bond
c. anion
d. ionic bond
e. molecule
f. cation
g. compound
h. polar molecule
Answer:
1. anion
2. compund
3. ionic bond
4. polar molecule
5. molecule
6. covalent bond
7. cation
8. metallic bond
Explanation: