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.
Please help Me Answer this
CAN SOMEONE HELP ME ON THIS PLEASE
option C gas.............................. ᕕ( ᐛ )ᕗ
Please answer the question circled in red
(I'll only give brainliest if it's right)
Answer: i agree with alan this is because energy cannot be created nor destroyed only stored and transferred wich mean the soccer ball always has energy
Explanation: hope this helps :)
can someone please help me on this i really need help i will litteraly fail
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.
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
explain how deep ocean currents form.
Answer:
Deep ocean currents (also known as Thermohaline Circulation) are caused by: The sinking and transport of large masses of cool water gives rise to the thermohaline circulation, which is driven by density gradients due to variations in temperature and salinity. The earth's rotation also influences deep ocean currents.
NEED HELP ASAP! pls pls help meee
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)
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
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
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
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
Answer:
CH4 + 2O2 → CO2 + 2H2O
Explanation: Hope this helps you.
help me pls someone plss???
Answer:
a
Explanation:
I am so sorry I don't know how to explain
help me pls someone plss???
c) water vapor is less dense
Which of the following genotypes would result in a red phenotype?
Group of answer choices
1. cc
2. c
3. RB
4.Cc, CC
Create a list of 5 potential jobs that students of astronomy can obtain.
Answer:
Applications Engineer.
Business Development Manager.
Chief Systems Engineer.
Coating Technician.
Director of Business Development.
The type of heat transfer responsible for distributing most of the heat throughout Earth's atmosphere is
A.radiation
B.conduction
C.convection
Answer:c
Explanation:
...
What is unique about the moons that orbit Jupiter? (select all that apply)
some are as large as planets
they all have names
there are more than 70 of them
several are bigger than Earth's moon
I personally think that "There are more than 70 of them" and "Some are as large as planets" is the most unique.
Chemical energy is stored in the bonds of (1 point)
glucose molecules.
carbon dioxide molecules.
water molecules.
oxygen molecules.
Answer:
Glucose molecules
Hope this will help u
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.
Answer:
Box 1 and Box 2 are the same mass It caused both to change speed because they have both the same mass.
Explanation:
Newtons second law in your own words.
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
Sketch a simple model that shows why the constellations change over the course of a year.
Answer:
for only five points we will not make sketch n
What is the relationship between glucose and the energy molecule?
Answer:
Glucose is the carbohydrate produced by photosynthesis. Energy-rich glucose is delivered through your blood to each of your cells. ATP is the usable form of energy for your cells
Explanation:
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.
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....
Explain how deforestation contributes to global warming
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:
Which of the following is correct?
A reactants <- products
B reactants products
C reactants →p products
D reactants = products
Answer:c..................
What are the 2 types of bonds in science and define them.
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:
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
A: Hypothesis; B: Theory; C: Law
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.
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.
Plz help with this it is the digestive system
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.
A pure substance is a single kind of matter. ----------------------- A(n)
is made up of two or more substances that are together in the same place, but each substance keeps its own properties.
Answer:21
Explanation:
Can someone please help me with this?
Write your analogy story below