Answer:
Isotope
Explanation: Atoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well. Adding a proton to an atom makes a new element, while adding a neutron makes an isotope, or heavier version, of that atom.
Answer:
an isotope.
Explanation:
Isotopes are two or more types of atoms that have the same atomic number and position in the periodic table and that differ in nucleon numbers.
I need this answer right now please help!!!!!
1. Why did the naked egg swell when it is placed in water?
2. Why did the swollen naked egg shrink when it is placed in corn syrup??
Answer:
1.porque la cáscara del huevo es semipermeable, es decir, hay sustancias que pueden pasar al interior del huevo o salir de él. En esta ocasión parte del líquido ha entrado dentro del huevo
2.Los huevos se encogen en el jarabe de maíz debido a la ósmosis. La ósmosis es el proceso por el cual el agua entra y sale de las células a través de una membrana semipermeable.
El agua entra y sale de los tejidos a través de la ósmosis. Durante la ósmosis, el agua entra o sale de la célula a través de la membrana semipermeable de la célula. Esta membrana es esencial para permitir que los materiales vitales entren en las células sin permitir el paso de materiales no deseados o peligrosos. Durante la ósmosis
Explanation:
dame coronita plis me ayudas mucho
1.because the eggshell is semi-permeable, that is, there are substances that can pass into the egg or leave it. This time part of the liquid has entered the egg
2.Eggs shrink in corn syrup due to osmosis. Osmosis is the process by which water enters and leaves cells through a semi-permeable membrane.
Water enters and leaves tissues through osmosis. During osmosis, water enters or leaves the cell through the semi-permeable membrane of the cell. This membrane is essential to allow vital materials to enter cells without allowing unwanted or hazardous materials to pass through. During osmosis
Explanation:
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What is true of a reaction that has reached equilibrium?
The reaction rates of the forward and reverse reactions are equal.
The rate of the forward reaction is greater than the rate of the reverse reaction.
The reaction rate is zero.
The rate of the forward reaction is less than the rate of the reverse reaction.
Answer:
The reaction rates of the forward and reverse reactions are equal.
Explanation:
I took the test and that was the answer. Hope this helps :)
A student rolled a red basketball across a gym floor toward a blue basketball, which was motionless. When the balls collided, the student observed that the red basketball had stopped moving and concluded that the blue basketball had exerted a force on the red ball. Evaluate the student’s conclusion by answering the following questions.
• What force acted on the red ball during the collision?
• Compare the forces that acted on the two balls during the collision.
• Given that the red basketball stopped moving, predict the motion of the blue basketball after the collision.
• Was the student’s conclusion correct?
Answer:
Lực tác dụng lên quả bóng màu xanh
Explanation:
Kết luận của học sinh vậy là đúng
Scientists often use the periodic table to predict how elements will react. Which of the following elements would react similarly?
can someone help with this please right answers only and dont do #2
Answer: 1. Use goggles, lab coat, and ask instructor about any questions
Explanation:
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Breaking down of dead plants and animals is b. decomposition.
Answer:
DECOMPOSITIONExplanation:
HOPE IT HELP ✌️✌️_____ is the pigment that gives plants their green color.
Chloroplast
Chlorophyll
Cell membrane
Cell wall
Which statement is correct concerning the cell walls?
Cell walls do not allow water to enter or leave the cell.
All plants and animals remain rigid because of cell walls.
Woody plants can remain standing without water because of stiff cell walls.
Answer:
Cell walls do not allow water to enter or leave the cell is the correct answer. Hope it helps.
•The biosphere is the parts of Earth and the surrounding atmosphere where there is life.•The biosphere is the parts of Earth and the surrounding atmosphere where there is life.
true or false
Answer:
True
Explanation:
The biosphere is the portion of Earth where life occurs -- the portions of the land, water and air in the atmosphere that hold life.
Which are mediums that sound waves can travel through? (Select all that apply.)
a wooden wall
the air in your bedroom
the ocean
outer space
Answer:
A and B
Explanation:
Answer: B. the air in your bedroom, C. the ocean
Explanation:
Hope this helps?!+
Question 4 (1 point)
Very high wispy clouds formed mostly of ice crystals.
Stratus
Cirrus
Cumulous
identify the for of energy
(A)mechanical energy
(B)chemical energy
(C)radiant energy
(D)electrical energy
Answer:
Mechanical energy is the energy that is possessed by an object due to its motion or due to its position
Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules
Radiant energy, energy that is transferred by electromagnetic radiation, such as light, X-rays, gamma rays, and thermal radiation
The flow of electric charge (usually electrons) is electric current.
Hope this answered the question
the length of a piece of metal that has a melting point of 400 °C. At 20 °C, the metal is 2.3 cm long. The scientist heats the metal to 125 °C. Which of the following is the most likely length of the metal at 125 °C plz answer soon. i really need help :(
Compare the Engineering Design Process and the Scientific Method! Give 6 Similarities and 6 differences for each one! Be creative in how you compare them!
Which is the Milky Way?(1 point)
A) A galaxy that does not include our solar system
B) A dwarf galaxy
C) Galaxy containing earth(i think this one is right)
D) Galaxy destroyed in collision
Answer:
C
Explanation:
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.
Milky Way can be referred to as the galaxy which contains Earth . The milky way also comprises of other solar systems such as the Sun and billions of stars.
The name 'milky way' came about as a result of how the sky looks when viewing it at night. It contain several bands of color in a milky manner which are usually difficult to differentiate.
The milky way comprises of different processes such as force of gravity acting on it and also the channeling of energy needed to produce stars which aids vision in the night.
Read more on https://brainly.com/question/25133371
Which of the following occurs over a small area and is a local wind.
Answer:
the answers are
A
C
C
A
100% correct
Explanation:
A. Local winds occur over a small area, while global winds occur over a large area.
B. Local winds blow in from the ocean, while global winds do not.
C. Local winds are considered breezes, while global winds produce mostly storms.
D. Local winds are created by the unequal heating of Earth's surface, while global winds are produced by polar temperature zones.
As the wavelength of a wave increases, the frequency ___________.
remains the same
increases
decreases
Answer:
It would C.) decrease, I hope this helps! : )
Answer the following questions from the movie ‘Flubber.’
Answer:
those are right
Explanation:
The electromagnetic spectrum is the portion of energy that reaches the Earth from the Sun. However, the human eye can still only detect a portion of that spectrum because of the _____________ of the visible light waves.
amplitude
wavelengths
crests
troughs
Answer: I’m stuck between amplitude and wavelengths but I do think it’s wavelengths.
Correct me if I’m wrong! ^^
The human eye can only detect a portion of that spectrum because of the wavelength of the visible light waves. Therefore, option (B) is correct.
What are frequency and wavelength?The wavelength of the light can be defined as the distance between the two adjacent points of a wave w.r.t. each other. Two crests on a wave are separated by a distance known as wavelength.
The frequency of the wave can be defined as the number of oscillations of a wave in 1 sec. The frequency has S.I. units per second or hertz.
The relationship between wavelength, frequency (ν), and speed of light (c) is as follows:
c = νλ
The part of the electromagnetic spectrum that is visible to the human eye is known as the visible spectrum. The electromagnetic radiation of the visible spectrum is known as visible light.
Human eyes can detect the wavelength of range from 380nm to 740nm. This wavelength range of visible light corresponds to a band of frequency between 405 THz to 790 THz.
Learn more about wavelength and frequency, here:
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Is this a scientific model? Use complete sentences to explain why or why not. i need help asap!!!!!!!!!!!!!!!!!!!!
Answer:
This is a scientific model.
Explanation:
Since it shows how the water cycle works, and gives us a visual of how it is and what each part does.
The presence of _____ in the cell wall makes the walls somewhat rigid.
cellulose
cell membrane
chloroplast
chlorophyll
What is the relative humidity given the following information?
Dry bulb=46
Wet bulb = 38
options:
25%
43%
45%
Answer: thats hard
Explanation:
Answer the following questions from the movie ‘Flubber.’
Answer:
1) all of the above
2) a peice of his hair
3) 77 degrees
4) none of the above
5)slippery,viscous and bouncy
6) flying rubber
7) true
8) 500
9) helium
Which statements demonstrate the law of conservation of matter? (Select all that apply.)
water evaporating in the water cycle which is an open system
water freezing
cookie dough is baked into a cookie
sugar dissolving into water
Water evaporating in an open system, water freezing, cookie dough baked into a cookie, and sugar dissolving into water are all examples of statements that demonstrate the law of conservation of matter.
What is law of conservation?A conservation law in physics asserts that a specific observable property of an isolated physical system doesn't change over time.A physical property, or measurable amount, does not change over time in an isolated physical system, according to the conservation law, often known as the law of conservation, which is a principle in physics.According to the principle of mass conservation, neither chemical processes nor physical changes can create or destroy mass in an isolated system. The mass of the products and reactants of a chemical reaction must be equal, in accordance with the law of conservation of mass.To learn more about law of conservation refer to:
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Describe how a chemical change follows the law of conservation of matter.
give examples pls
Answer: In any chemical change, one or more initial substances change into a different substance or substances. ... According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and kind of atoms after the chemical change as were present before the chemical change.
Explanation:
Help me out<3 i give brainliest if iz correct
Answer:
I believe the answer is B :)
Explanation:
(HELP I DONT KNOW HOW TO DESCRIBE IT BUT I SEE THE SIMILARITIES) Look at the green lines you created by connecting the three boiling point data points and the three melting point data points. For each of these lines, describe any trends you see.
Answer: There will be an increase in the boiling point with an increase in the molecular mass.
Explanation:
The melting point is the temperature at which the substance changes from a liquid state to a vapor state at a constant pressure. The pressure required to effect this change is known as the vapor pressure. The higher the vapor pressure, the higher the boiling point and the lesser time it takes for the substance to escape from the liquid state. In this case, a higher molecular mass means more energy is needed to make sure that there is a gaseous change. In addition, the higher melting point requires the lower temperature as well.
The plant chemical which absorbs sunlight and helps make food is:
epithelial
chlorophyll
cellulose
xylem
please help please lol
Answer:a and d
Explanation:
1. What happens between the molecules of two objects when a hot object touches a cooler object?
2. What are some examples of good conductors of heat?
3. What are conducting materials used for?
4. What characteristic makes a material an insulator?
5. What are some examples of good insulators?
6. What are insulating materials used for?
Answer:
1. conduction happens
2. gold silver iron, ect
3. they are good conductors for electricity and heat
4. atoms who have tightly bound electrons
5. plastic, paper, rubber, glass
6. radiant barriers
Explanation:
