Chemistry Middle School

help me pls someone plss???

Help Me Pls Someone Plss???

Answers

Answer 1

c) water vapor is less dense

Related Questions

There are several different models that represent compounds. One type of model is shown.

A large black sphere connected to 4 small blue spheres by 4 grey sticks.
What type of model is shown?

a structural formula
a chemical formula
a space-filling model
a ball-and-stick model

Answers

For those looking for the letter its D

Your welcome :)

The representation described in the question is a ball and stick model.

Several kinds of models can be used to represent molecules. Models help us to accurately visualize what the molecule may look like. It shows the actual arrangement of atoms in the molecule in order to help us predict the possible reactions that the molecule may undergo.

A model which consists of spheres connected to each other is a ball and stick model. The spheres are the balls and they are linked to each other by the sticks.

Learn more: https://brainly.com/question/1389682

In a warehouse, the workers sometimes slide boxes along the floor to move them. Two boxes are sliding toward each other and crash. The crash caused both boxes to change speed. Based on the information in the diagram, which statement is correct? In your answer, explain what the forces were like and why the boxes changed speed.

Box 1 has more mass than Box 2.
Box 1 and Box 2 are the same mass.
Box 1 has less mass than Box 2.

Answers

Answer:

Box 1 and Box 2 are the same mass It caused both to change speed because they have both the same mass.

Explanation:

In your second paragraph, describe properties of sound waves. Then make a claim about how loud an explosion in space should be. Provide evidence and reasoning to support your claim.

Answers

Answer:

Here are five important characteristics: wavelength, amplitude, frequency, time period, and velocity. The wavelength of a sound wave can tell the distance that wave travels before it repeats itself. The wavelength itself is a longitudinal wave that show compression and rarefactions of sound waves.

Explanation:

Hope this helped please pick me brainliest

Plz help with this it is the digestive system

Answers

Answer:

see explanation for answer

Explanation:

salivary gland:  1

stomach: 2

small intestine: 6

liver: 4

gallbladder: 5

large intestine: 3

The answers correspond with the numbers on the text boxes, so you would drag number 1 to the salivary gland and so on.

slavery gland is 1
stomach is 2
small intenstine is 6

CAN SOMEONE HELP ME ON THIS PLEASE

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option C gas.............................. ᕕ( ᐛ )ᕗ

NEED HELP ASAP! pls pls help meee

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pretty sure 4 is heat

Which of the following is correct?

A reactants <- products
B reactants products
C reactants →p products
D reactants = products

Answers

Answer:c..................

answer
c
explanation

The type of heat transfer responsible for distributing most of the heat throughout Earth's atmosphere is

A.radiation

B.conduction

C.convection

Answers

Answer:c

Explanation:

...

Radiation example if be your phone a lot it will burn you

Please answer the question circled in red
(I'll only give brainliest if it's right)

!!! THE QUESTION IS ASKING FOR 5-8 SENTENCES, PLEASE RESPOND WITH 5-8 SENTENCES !!!

Answers

Answer:

This energy is mostly seen when the ball is kicked in the air. It is called potential energy because it has the potential to do work. If the soccer ball is raised to a certain height, at the top, before it gains Kinetic Energy, it has the Potential stored that it will be used once it starts to move.

Explanation:

Newtons second law in your own words.

Answers

Answer:

behavior of objects for which all existing forces are not balanced.

Explanation:

Answer:

F=ma. Force is equal to mass times acceleration. The accleration of an object depends on the net force.

Explanation:

I know its F=ma but I think this is right I hope it helps

Chemical energy is stored in the bonds of (1 point)

glucose molecules.

carbon dioxide molecules.

water molecules.

oxygen molecules.

Answers

Answer:

Glucose molecules

Hope this will help u

Which of the following genotypes would result in a red phenotype?

Group of answer choices

1. cc

2. c

3. RB

4.Cc, CC

Answers

I would say 1 I think

can someone please help me on this i really need help i will litteraly fail

Answers

21. portion
22.mass conservation
23.molecule
Portion
Mass conservation
Molecule

What is radiation?

a Transfer of heat through objects touching the source

b Transfer of heat through direct physical contact

c Transfer of heat through electromagnetic waves

d Transfer of heat through the movement of particles

Answers

Answer:

C.

Explanation:

Radiation is an invisible force that can be deadly or helpful. So the only way it can move is by another invisible force.

Please help Me Answer this

Answers

Objects that produce heat are coal, liquid fuels, gasoline, oil, and gaseous fuels
Sound: conditioning fan, airplane, broom, falling

Provide the total number of atoms in each formula given:

1. NH4OH (Ammonium hydroxide)

2. NH4Cl (Ammonium chloride)

3. Ag2O (Silver oxide)

4. K2SO4 (Potassium sulfate)

5. Ca(NO3)2 (Calcium nitrate)

6. Na2S (Sodium sulfide)

Answers

Answer:

1. N

H4

O

H

2. N

H4

Cl

3. Ag2

O

4. K2

S

O4

5. Ca

(N

O3) 2

6. Na2

S

Explanation:

I tried hope u understand

1. 7
2. 6
3. 3
4. 7
5. 10
6. 3

Which chemical equation is balanced? Question 4 options: CH4 + O2 → H2O + CO2 CH4 + O2 → 2H2O + CO2 6CH4 + O2 → 2H2O + 2CO2 CH4 + 2O2 →2H2O + CO2

WILL GIVE BRAINLIEST

Answers

Answer:

CH4 + 2O2 → CO2 + 2H2O

Explanation: Hope this helps you.

Ch4+202-:co2+2H2O
I think so it will be ok

Study the diagram about the varying pressures of Earth’s Layers. Earth's layers. The Crust at depth of 0 kilometers, upper mantle depth 410 kilometers, lower mantle depth 2,900 kilometers at 125 gigapascals, 2,200 degrees Celsius. Outer core depth 5,100 kilometers at 330 gigapascals, 5,000 degrees Celsius. Inner core at 364 gigapascals, 5,500 degrees Celsius.

Which layer most likely has a pressure, represented in units of GPa, within the range of 310 GPa to 150 GPa?

outer core
inner core
lithosphere
oceanic crust

Answers

Answer:

The answer is A, Outer Core.

Explanation:

Your welcome and have a wonderfull day :P

Answer:

a

Explanation:

i just took the test

Compare the density of the ocean crust and the continental crust. If they were to collide, predict which one would push under the other. Explain.

Answers

Answer:

The difference between the density of the ocean crust and the continental crust is the fact that the ocean crust is denser than the continental crust. Meaning, the continental crust is likely to push over the oceanic crust considering it has less dense.

Explanation:

I hope this helps, the last time I learned this was in 5th grade and I am i currently in the 11th grade....

2. 1. Your best friend has missed a lot of school recently. Your teacher has allowed you to create a study guide and will let your friend use it on the test.

The guide should include:
• descriptions of amplitude, wavelength, frequency, and wave speed.
• Give examples of the wave relationship between amplitude and wavelength (if there is no relationship, explain how you know)
• Give examples of the wave relationship between wavelength and frequency (if there is no relationship, explain how you know)Text to speech

Answers

                    Water study guide

sorry i forgot everuthing i learned in this class lol

Cell Analogy Exploration
analogy story

Can someone help me with the analogy story?

Answers

Answer:

need points sorry ill help you i promise

Explanation:

The cytoplasm is like the guards of the mall

What is a phyiscal and chemical change

Answers

a physical change is changing from one state to another without a change in chemical composition. (ex. freezing, melting, boiling a substance)

a chemical change occurs when one or more substances change into entirely new substances with different properties

Answer:

Physical change is when change occur physically in a substance. It is usually reversible. It includes change in colour, shape, texture, volume etc.

Examples: Cutting of paper, making moulded stuff from dough etc.

Chemical change is when change occurs chemically in a substance. It is non-reversible. When ever a physical change happens, a new substance if formed.

Examples: Burning of paper, transformation of milk into curd etc.

What are the 2 types of bonds in science and define them.

Answers

Answer:

The two main types of bonds formed between atoms are ionic bonds and covalent bonds. An ionic bond is formed when one atom accepts or donates one or more of its valence electrons to another atom. A covalent bond is formed when atoms share valence electrons.

Explanation:

Answer:

chemyical and Ionic

Explanation:

Explain how deforestation contributes to global warming

Answers

Answer:

when trees are cut down it reduced the amount of CO2 being converted into oxygen

Answer:

Deforestation contributes to global warming because with trees being cut down there is less oxygen being made and no trees to take in the carbon dioxide that is being produced. So without trees to do the work, people build greenhouses which uses their own gas that makes the world warmer because it traps the heat from the atmosphere.

Explanation:

what is a oganisem
mmmmmmmm

Answers

Living things that are capable of reacting to stimuli, reproduction, growth, and homeostasis.

2. A storyboard is a series of panels that shows the visual and verbal components of a video you intend to make. Create a storyboard that explains this phenomenon. It must
• be one to two minutes in length.
• demonstrate an understanding of Earth’s rotation and revolution.
• include evidence for these motions.
• include the terms: pattern, rotate (rotation), revolve (revolution), axis, Earth’s orbital plane, and Polaris.

You may use any of the aspects of the models used in class and in the Student Text.

Answers

Answer:

A storyboard is a sequence of sketches or illustrations that map out the scenes planned for a video. The video production team then uses this map to ensure that the plot is coherent, engaging, and free of inconsistencies before they start making the video.

Create a list of 5 potential jobs that students of astronomy can obtain.

Answers

Answer:

Applications Engineer.

Business Development Manager.

Chief Systems Engineer.

Coating Technician.

Director of Business Development.

Applications Engineer.
Business Development Manager.
Chief Systems Engineer.
Coating Technician.
Director of Business Development.
Electrical Engineer.
Engineer, Modeling & Simulation.
EO/IR Systems Engineer.

help me pls someone plss???

Answers

Answer:

a

Explanation:

I am so sorry I don't know how to explain

Sketch a simple model that shows why the constellations change over the course of a year.

Answers

Answer:

for only five points we will not make sketch n

Lola has learned in science class that hypotheses, theories, and laws are related. She has made this graphic organizer to show this relationship. How should her graphic organizer be labeled? A: Law; B: Theory; C: Hypothesis A: Theory; B: Hypothesis; C: Law A: Hypothesis; B: Theory; C: Law A: Law; B: Hypothesis; C: Theory

Answers

A: Hypothesis; B: Theory; C: Law

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