I hope that was enough to answer your question!!!
Have a good day and I hope you pass all of your exams!!!!! <3Describe 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:
determine which is the control group and which is the experimental group in the following scenario ( Scientists are testing a new kind of aspirin to see whether it will relieve headaches. They give one group of volunteers the aspirin. They give another group of volunteers pills that look like aspirin but are actually sugar pills)
Answer this and you will get brainiest WITH NO VIRUS LINKS OR REPORT YOU
Answer:
The group given the sugar pills.
Explanation:
The control group is the ones given sugar pills because they did not get the experimental aspirin
If the distance of the track is 100 cm and it takes the marble 5 seconds to go from beginning to end, what is the speed ?
Explanation:
speed = distance ÷ time
= 100 cm ( 1 meter ) ÷ 5 seconds
= 20 cm/s
= 0.2 m/s
Find the average kinetic energy of the molecules shown in the sample above. ( C and D are wrong )
a. 5
b. 4
c. 3
d. 36
Answer: B
Explanation:
I need help with these questions from 8th Grade science, Specifically Chemistry.
Answers should be detailed, 3-4 sentences.
List at least 3 different physical properties or changes of a substance.
List at least 3 different chemical properties or changes that a substance can experience.
EXPLAIN YOUR ANSWER! NO LINKS! PLEASE DON"T ANSWER JUST TO GET POINTS!
I will report your answer if you do any of those things.
Thx in advance!
Answer:
Physical properties of a substance can include color, temperature, and mass. These are physical properties because they can be measured without changing a substance's chemical identity. Chemical properties of a substance can include flammability, acidity, and reactivity. These are chemical properties because they can be measured only by changing a substance's chemical identity.
In the process of precipitation, liquid water changes into water vapor and enters the atmosphere.
True or False?
:p
Answer:
true
Explanation:
As the wavelength of a wave increases, the frequency ___________.
remains the same
increases
decreases
Answer:
It would C.) decrease, I hope this helps! : )
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:
give me a crown, please help me a lot
The main function of the respiratory system is to –
A. filter body fluids to remove waste products from the bloodstream.
B. send signals in the form of hormones to the body to control growth, reproduction, and metabolism.
C. rapidly communicate specific information using electrical impulses.
D. exchange gases, mostly carbon dioxide and oxygen, between the body and the atmosphere.
1. What are characteristics and examples of bryophytes?
2. What are characteristics and examples of protists?
Answer:
characteristics of bryophytes:
1) the plant body is gametophyte
2) the plants are green and possess chloroplasts
3) he plant body lacks true roots,stem or leaves
4) vascular tissue are completely absent
examples: liverworts, the hornworts, mosses
characteristics of protists:
1) some are multicellular, most are unicellular
2) some are autotrophic, some are heterotrophic
3) they have a nuclear and membrane bound organelles
4) they can be parasites
examples: algae, amoeba, euglena
Explanation:
Help me out<3 i give brainliest if iz correct
Answer:
I believe the answer is B :)
Explanation:
What is formed when the number of electrons is changed?
Question 1 options:
ion
radioisotope
isotope
a new element
Answer:
ions.....................
Answer:
ions? t.b.h i have no idea
Which of the below choices is NOT one of the pieces of evidence for the existance of Pangea?
What have you learned about isotopes from this simulation?
AnswerI dont Know?
Explanation:
What type of plate boundary is shown below?
Answer:
B. Convergent Boundary
A colored thermal image shows a yellow person sitting in front of a red and orange computer screen. The rest of the room is blue. A scale runs from 20.3 degrees Celsius at blue through green and yellow to orange and red at 40.3 degrees Celsius.
This thermogram shows a person using a computer. Complete the sentence to describe the flow of thermal energy between the person and the computer.
Thermal energy will flow from the
to the
[wheres science ?! this is science^]
Answer:1) person 2) person
Explanation:
I just did the assignment
The correct answer is the computer's thermal energy will be transferred to the human.
Why does energy flow from the computer to the person?Computers are often devices that transform electrical energy into thermal energy, which is then supplied to the user. The energy is transferred from the higher to the lower amount. In this example, the computer produces more thermal energy than the person, which is why energy flows from the computer to the person.Learn more about computer thermal energy here:-
https://brainly.com/question/21225659
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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.
Question 4 (1 point)
Very high wispy clouds formed mostly of ice crystals.
Stratus
Cirrus
Cumulous
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:
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
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 :(
_____ is the pigment that gives plants their green color.
Chloroplast
Chlorophyll
Cell membrane
Cell wall
Answer please and thank you
Answer:
speed is the distance an object travels per unit of time
velocity is speed in a given direction
Answer:
1. Speed in a given dirrection
2. The rate at wich velocity changes with time
Explanation:
I took the test.
(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 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.
strike my first letter, i am still the same. strike my next letter,and i am yet still the same.
what 5 letter word am i?
Answer:
Alone
Explanation:
wait i think
Answer:
Aloneee!!!!
Step to step explanation:
please help please lol
Answer:a and d
Explanation:
help plsssssssssssssssssssssssssssssssssssssssssss
Breaking down of dead plants and animals is b. decomposition.
Answer:
DECOMPOSITIONExplanation:
HOPE IT HELP ✌️✌️Use the notes you recorded about the evidence and the work you did with your group using the Reasoning Tool to help you write a message to Dr. Moraga about the Mesosaurus’ history. You may wish to use some of the vocabulary words listed in the Word Bank below to help you write.
Question: How did the Mesosaurus fossils on the South American Plate and African Plate get so far apart?
Claim 1: The South American Plate and African Plate moved apart suddenly.
Claim 2: The South American Plate and African Plate moved apart gradually.
I need a 9 sentence paragraph for this
Answer:
Explanation:
im sorry this is all i know
Earth's plates travel at a rate too slow to be experienced by humans. It takes a long time for Earth's plates to travel great distances. The Mesosaurus fossils moved apart gradually over tens of millions of years.
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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