Chemistry Middle School

pls help due tonight
or my dad will get mad at me

Pls Help Due Tonight Or My Dad Will Get Mad At Me

Answers

Answer 1

Answer:h

Explanation:

Related Questions

What did you observe happening in the cups?

Did a phase change or phase changes occur? If so, which one or ones?

Answers

I think it gets foggy in the cup i think but good luck!!
a phase change will occur , it will first become blurry due to water vapour evaporating and cool down to tiny water droplets when coming in contact with the plastic cup ( hope im right , its been awhile! )

What is the function of tunnels and passageways in subsurface mining?
a. to reach mineral ore deep below the surface of the earth
b. to reach mineral ores on the surface of the earth
c. to drain underground lakes where minerals are found
d. to create strip mines and quarries below the surface of the earth

Answers

Answer: to reach mineral ores on the surface of earth

Explanation:

ANSWER: b. to reach mineral ores on the surface of the earth

The equator is at a latitude of 0°. Which latitude will have the warmest temperature?

A. 15°N

B. 20°S

C. 45°N

D. 70°S

Answers

Pretty sure it is 20
The answer is b 20

Hope this helps:)

can someone help with this please right answers only and dont do #2

Answers

Answer: 1. Use goggles, lab coat, and ask instructor about any questions

Explanation:

5 I think it’s git a teacher

Species acquire many of their unique characteristics through
A. Homologous structures
B. Homeostasis
C. Pangaea
D. Variation

Answers

Its A homologous structures

What have you learned about isotopes from this simulation?

Answers

AnswerI dont Know?

Explanation:

just write down what you’ve learned…?

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??

Answers

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

Question 4 (1 point)
Very high wispy clouds formed mostly of ice crystals.
Stratus
Cirrus
Cumulous

Answers

Cirrus clouds. Good luck!
circus clouds :))))))))

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.

Answers

The answer is d I believe
The answer is D. Exchange gases, mostly carbon dioxide and oxygen, between the body and atmosphere!

I need help please j

Answers

Reactants Hydrogen: 5
Products Hydrogen: 5

Reactants Carbon: 3
Products Carbon: 3

Reactants Oxygen: 4
Products Oxygen: 5

right answers only will be reported if not right and no lniks!!!!!!!!!!!!!!!!!

Answers

Answer:

The answer is D

Explanation:

fish endangered: 15.1

fish threatened: 6.6

More fish are endangered than threatened

Short Question: What is Hydropower?

Answers

The use of flowing water to power a turbine to produce electrical energy

Answer:

Hydropower is energy in moving water.

Explanation:

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

Answers

Answer: B

Explanation:

Answer C and D are wrong , so there for the answer is B.4

Which of the below choices is NOT one of the pieces of evidence for the existance of Pangea?

Answers

Answer: B

Your welcome

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

Answers

all of them. i’m learning this right now. they all have physical and chemical changes.

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:

https://brainly.com/question/15289631

#SPJ2

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

Answers

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

The group that were given sugar pills

What is formed when the number of electrons is changed?


Question 1 options:


ion



radioisotope



isotope



a new element

Answers

Answer:

ions.....................

Answer:

ions? t.b.h i have no idea

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^]

Answers

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

#SPJ2

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!

Answers

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.

please help please lol

Answers

Answer:a and d

Explanation:

The answer would be A and /or D

A student uses a lever and fulcrum to lift a rock off the ground.
Which option describes when potential energy is converted into kinetic energy during this process?


a. when the lever is wedged beneath the rock but before it has been lifted

b. when the student presses down on one side of the lever to cause it to move

c. when the rock rests on the ground without the lever

d. when the rock rests above the ground

Answers

it has to me b because it shows what they did in this part
I think it’s b hope this helps

1. What are characteristics and examples of bryophytes?

2. What are characteristics and examples of protists?

Answers

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:

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 ?

Answers

Explanation:

speed = distance ÷ time

= 100 cm ( 1 meter ) ÷ 5 seconds

= 20 cm/s

= 0.2 m/s

helppp this easyyyyyyyyyyyyyy

Answers

Answer:

Circulatory System -

Nervous System

Respiratory System

muscular system

What type of plate boundary is shown below?

Answers

Answer:

B. Convergent  Boundary

15 points?
Extinction of a species is most likely to NOT occur in which example?
A. the organism is larger and stronger than others in it's environment
B. the organism is smaller and smarter than others in its environment
C. the organism is larger and smarter than others in it's environment
D. the organism is able to survive and reproduce more than others in it's environment

Answers

Answer:

D. the organism is able to survive and reproduce more than others in it's environment

Explanation:

It will only go extinct if it can't survive or reproduce.

D. Because extinction=Something being extension/bye-bye

How does weathering and erosion contribute to the cycling of earth's materials? (specifically rock/the geophere)​

Answers

Answer:

Erosion breaks rocks down further and then moves them.

Which of the following has the greatest influence on the size and force of waves?
A.
seasons
B.
Moon’s gravity
C.
wind speed
D.
Earth’s gravity

Answers

wind speed bc The faster the wind, the longer it blows, or the farther it can blow uninterrupted, the bigger the waves.
c. wind speeds


i need 20 soooo

As the wavelength of a wave increases, the frequency ___________.

remains the same

increases

decreases

Answers

Answer:

It would C.) decrease, I hope this helps! : )

It’s C because “increases”

In the process of precipitation, liquid water changes into water vapor and enters the atmosphere.
True or False?
:p

Answers

Answer:

true

Explanation:

Very true:)! Why does the sentence have to be so long
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How do plants and animals rely on each other? The gulf flounder is a fish that is found in the Gulf of Mexico. Itmigrates between estuaries and the open ocean. It prefers to livein water with > 2% salinity, though can tolerate a wide range ofsalinity, from 0.5% to 4%.Choose the correct statement about the gulf flounder.The gulf flounder is stenohaline.The gulf flounder prefers to live in freshwater over saline water.The gulf flounder possesses the ability to prevent the intake ofexcess salt.The gulf founder is not found in brackish water. Which important group was left out of the Berlin Conference? This graph represents the distance a train traveled over a 20-hour time period. Approximatelyhow far has the train traveled after 1 hour? After 4 hours? 1: After 1 hour 50 miles, after 4 hours 150 miles2: After 1 hour 20 miles, after 4 hours 100 miles3: After 1 hour 25 miles, after 4 hours 100 miles4:After 1 hour 25 miles, after 4 hours 150 miles Nitrogen gets returned to the atmosphere through A floor plan of 's cheryls bedroom and closet is shown. The height of the bedroom is 7 feet. The height of the closet is 6 feet. What is the total volume of the bedroom and the closet? . Does it make sense for to find the combined area of the bedroom floor and closet floor before finding the total volume? Explain your thinking. CAN SOMEONE PLZ HELP ME?? PLZ DO YOU KNOW ABOUT Coordinate Planes??!! plzzzzzz help Select the correct answer.Which color does flexo printing print first when printing a colored file?A. cyanB. magentaC. blueD. blackE. yellow Two boys each run 3 miles for 4 days. How many total miles did they run? Antarctica was considered fertile land that people wanted to settle duringcolonization times.TrueFalseASAP help! the measure of XY = 140 find the measure of angle 0 Which set of sides would make a right angle?8,10,124,5,65,12,135,10,12 A board game comes with the set of cardsshown below. Find each ratio in simplest form. Please write a short paragraph explaining: What is the purpose of having nicknames? What is Arkansas'scurrcnt nickname and why? If a new state nickname were ordered by the governor's office, what should it be andwhy? Here are the pictures I told you about and I one more getting drawn What are some solutions to solve the problem of companies moving overseas, because of lower labor cost in other countries? what is the diameter of a circle with a circumference of 27 centimeters? The rediscovery of ancient Greek and Roman knowledge sparked a period of rebirth known as the __?__.A. Cold WarB. Protestant ReformationC. Industrial RevolutionD. Renaissance a.a grave shipb.a warshipc.for cargod.none of these I need URGENT help with 16 through 18 pls!!!