Answer:
A substance that cannot be broken down into chemically simpler components is considered an element
Hope that helps:)
What are the characteristics of electromagnetic waves?
Answer: Electromagnetic waves are transverse in nature as they propagate by varying the electric and magnetic fields such that the two fields are perpendicular to each other.
Accelerated charges are responsible to produce electromagnetic waves.
Explanation:
Which of these best describes the relationship between the inner core, outer core, mantle, crust, asthenosphere, and lithosphere?
The question is incomplete, the complete question is;
Which of these best describes the relationship between the inner core, outer core, mantle, crust, asthenosphere, and lithosphere?
A: The coolest layers are farthest from the core.
B: The least dense layers are closest to the core.
C: The layers with the highest concentration of metals are closest to the crust.
D: The layers that remain in a molten state are closest to the crust.
Answer:
The coolest layers are farthest from the core.
Explanation:
When we talk about the internal structure of Earth, we mean the subdivisions of the solid Earth, that is, the concentric spherical layers that marks out the structure of the solid Earth.
The inner core is the innermost part of the earth's core and is known to have extremely high temperature. This high temperature steadily decreases as you approach the earth's surface.
Hence, the coolest layers are farthest from the core.
SCIENCE
Does combustion need oxygen?
A. Yes
B. No
Answer: a. Yes
Explanation:
Answer:
A. yes
Explanation:
In order to burn this fuel, oxygen is needed, as it is with any fire. The waste products from the combustion process are water and carbon dioxide. Thus, we breathe because oxygen is needed to burn the fuel (sugars and fatty acids) in our cells to produce energy The air we breathe contains about 21% oxygen.
Which element is less electronegative than silicon (Si)?
Answer:
C
Explanation:
Carbon has an electronegativity of 2.55, followed by Tin at 1.96, Silicon at 1.90 and the least electronegative would be Lead at 1.87.
Answer:
Carbon
Explanation:
Carbon has an electronegativity of 2.55, followed by Tin at 1.96, Silicon at 1.90 and the least electronegative would be Lead at 1.87
If the point of the nail can be approximated as a circle with a radius 2.00×10^-3m What is the pressure in MPa exerted on the wall if a hammer strikes the nail with a force of 104 N
Answer:
8.28 MPa
Explanation:
From the question given above, the following data were obtained:
Radius (r) = 2×10¯³ m
Force applied (F) = 104 N
Pressure (P) =?
Next, we shall determine the area of the nail (i.e circle). This can be obtained as follow:
Radius (r) = 2×10¯³ m
Area (A) of circle =?
Pi (π) = 3.14
A = πr²
A = 3.14 × (2×10¯³)²
A = 3.14 × 4×10¯⁶
A = 1.256×10¯⁵ m²
Next, we shall determine the pressure. This can be obtained as follow:
Force applied (F) = 104 N
Area (A) = 1.256×10¯⁵ m²
Pressure (P) =?
P = F / A
P = 104 / 1.256×10¯⁵
P = 8280254.78 Nm¯²
Finally, we shall convert 8280254.78 Nm¯² to MPa. This can be obtained as follow:
1 Nm¯² = 1×10¯⁶ MPa
Therefore,
8280254.78 Nm¯² = 8280254.78 Nm¯² × 1×10¯⁶ MPa / 1 Nm¯²
8280254.78 Nm¯² = 8.28 MPa
Thus, the pressure exerted on the wall is 8.28 MPa
Two students conduct the same experiment, but they get different results. What should the students do next?A.The students should check their procedure and tools for sources of error. B.Both students should throw out their data and start over. C.The students should compare data with other students and then use the data from the student who was closest to the rest of the class. D.The students should find the average of each data set and each report the average data.
Answer:
A.The students should check their procedure and tools for sources of error.
Explanation:
Answer:
I think it A
Explanation:
biology and physics are so closely related that sometimes the fields overlap. what experiment might both biologist and physicists do
Answer:
Study how the body's nerve cells react to an electrical shock.
Explanation:
Answer:
Study how the body's nerve cells react to an electrical shock.
Explanation:
a p ec
Radiant heat is typically found
A.in empty space
B.I’m water
C.in mountains
D.in bricks
Answer:
A.in empty space
Explanation:
Radiant heat creates heath through both convection and radiation. Their purpose is to heat up an environment, aka empty space.
describe nuclear change please
Answer: Nuclear change is distinct from chemical change in that elements change. In the nuclear change the elements can change from one to another. (Nuclei can break apart to form smaller elements.)
Explanation:
Answer:
A nuclear change is a process by which nuclei of certain isotopes change spontaneously or are forced to change to two or more different isotopes.
Explanation:
The three main types of nuclear change in the matter are radioactive natural disintegration, nuclear fission, and nuclear fusion.
I like blowing up stuff too
It's football season! Big Bubba Brown is running full speed trying to tackle the quarterback before he throws the ball. Wham! He got him! What happens to Big Bubba Brown?
A. Bubba uses all of his energy to tackle the quarterback.
B. Bubba and the quarterback lose their energy and fall to the ground.
C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.
D. Bubba knocks the quarterback down and keeps running at the same speed as before the tackle.
this is science btw.
Answer:
C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.
Explanation:
I majored in Science
Answer:C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.
just did the usatestprep
How many moles of hydrogen do you need to react with 0.85 moles of nitrogen?
Answer:
6 moles
Explanation:
You have a 1:3 ratio between nitrogen gas and hydrogen gas
Thomson concluded that .......
A- electrons must be parts of the atoms of all elements
B- Electrons are not parts of the atoms of all elements
C-None from the previous
Answer:
A. electrons must be parts of the atoms of all elements
Which processes are part of the fast carbon cycle?
Answer:
Option C
Explanation: Pass me the brainliest I only need 1
Thermal expansion occurs when particles of matter move farther apart as temperature increase. True or false ?
Answer:
true
Explanation:
Amoeba have the following metabolism.
A. Autotrophic
[tex] \huge \purple{\tt{Answer:}} [/tex]
a. Autotrophic
how would you describe the forces between the particles of solids??
Answer:
Explanation:
In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. ... The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other.
BRAINLIST!!
Water often has dissolved gases and other chemicals in it. When this water encounters rocks, the minerals in the rocks can be changed by the process of
A.
deposition
B.
erosion
C.
sedimentary mineralization
D.
chemical weathering.
A passenger elevator travels from the first floor to the 60th floor, a distance of 210 m, in 35s. What is the elevator’s speed?
Answer:6m per second
Explanation:
You arrive at English class 45 seconds after leaving math which is 100
meters away. How fast did you travel?
Answer:
4.97097
Explanation:
You traveled 4.97097 mph.
The
tell
you which element it is.
Atoms of the same element with a different number of NEUTRONS are
Atoms of the same element with a different number of ELECTRONS are
The PROTONS and NEUTRONS Can/Can't leave an atom during a
chemical reaction. The Electrons Can/Can't leave an atom during a
chemical reaction.
In a balanced atom, the
equal the
Answer:
Isotopes
Explanation:
Isotopes are atoms of the same element that contain an identical number of protons, but a different number of neutrons. Despite having different numbers of neutrons, isotopes of the same element have very similar physical properties.
please help me out i will give you brainlist. 0.500 is wrong
============================================
Work Shown:
Using the periodic table, we see that
1 mole of carbon = 12 grams1 mole of oxygen = 16 gramsThese are approximations and these values are often found underneath the atomic symbol. For example, the atomic weight listed under carbon is roughly 12.011 grams. I'm rounding to 2 sig figs in those numbers listed above.
So 1 mole of CO2 is approximately 12+2*16 = 44 grams. The 2 is there since we have 2 oxygens attached to the carbon atom.
-------------------
Since 1 mole of CO2 is 44 grams, we can use that to convert from grams to moles.
11.0 grams of CO2 = (11.0 grams)*(1 mol/44 g) = (11.0/44) mol = 0.250 mol of CO2
In short,
11.0 grams of CO2 = 0.250 mol of CO2
This is approximate.
We don't need to use any of the information in the table.
Answer:
.250
Explanation:
Which of the following is considered a dilute solution? Choose all that apply.
Very sweet tea
Contact lens solution
Tide pods (laundry detergent)
Swimming pool water
Answer:
Very sweet tea
Explanation:
yeah... because sweet tea can cause tooth decay in our mouth thats why...(Please check the other answers also...Its all my point of view....thank you)
the stimulus is related to?
Answer:
The government :) lol
Explanation:
How does gravity help to demonstrate a cause-and-effect relationship?
Answer:
Gravity helps show a cause and effect by demostarting how one object will have an effect on another object.
Explanation:
If you bounce a ball, it will fly back up, but it will fall down again because of gravity. The cause is GRAVITY and the effect is the ball FALLINg. Now, because o fgravity, when the ball bounces up again, it will only bounce 1/2 the hieght, having another cause and effect. As gravity pushes down on objects, the more an object is effected by it, the more presure it will have.
Question 8
Using Henry's Law: Sz/P1-S2/P2
To increase the solubility of a gas at constant temperature and 202kPa pressure from
0.85g/L to 5.1g/L, the pressure would have to be increased to:
A.505kPa
B.17.2kPa
C.606kPa
D.1212kPa
Answer:
D
Explanation:
plug the numbers
What is the meaning of this painting
Answer: things arnent always as they seem
Explanation:
Is it okay if you help me? I'm kind of in a tight spot here. Tysmmmmmmmmmmmmm o(❁´◡`❁)o!!
Answer:
Not sure, but I think ot is chemical bonds because chemical potential energy are stored energy in a chemical bond. Hope this helps, thank you !!
Fill in the blank...
Each element is made up of only one kind of ________
6. What are formed from the chemical reaction of the substances given
below? Write the balanced chemical reaction as well.
a) when calcium carbonate and hydrochloric acid react with eachother
CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g)
PLSSSSSS HELPPPPPPP FAST WILL GIVE BRAINLIEST I NEED A 3 PARAGRPAH ESSAY ON THIS SCIENCE ARTICLE!! INTRODUCION BODY AND CONCLUSION EACH PARAGRAPH 5 SENTENCES OR MORE!!!!!!
Answer:
jst do the work
Explanation:
its not complicated,ask your teacher for help
