Answer:
Dissolving a solid in liquid, such as table salt in water, is a physical change.
Explanation: Its a physical change because only the state of the matter has changed
6 CO₂ + 6 H₂0 → C₆H₁₂O₆ + 6 O₂
A. 6 CO₂
B. →
C. 6 H₂0
B. C₆H₁₂O₆
How does the development of the heliocentric model show how scientific ideas change over time?
Answer: Italian scientist Giordano Bruno was burned at the stake for teaching, among other heretical ideas, Copernicus' heliocentric view of the Universe. In 1543, Nicolaus Copernicus detailed his radical theory of the Universe in which the Earth, along with the other planets, rotated around the Sun.
Explanation:
Italian scientist Giordano Bruno was burned at the stake for teaching, among other heretical ideas.
What is Heliocentric model?Copernicus' heliocentric view of the Universe. In 1543, Nicolaus Copernicus detailed his radical theory of the Universe in which the Earth, along with the other planets, rotated around the Sun.
Because of heliocentrism, we now understand that Earth and the other planets of the solar system all orbit the sun.
But there once was a theory that put Earth at the centre of what was thought to be the entire cosmos and that everything literally revolved around us. The sun is at the centre of the heliocentric model, which is now known as the geocentric model.
Therefore, Italian scientist Giordano Bruno was burned at the stake for teaching, among other heretical ideas.
To learn more about Holiocentrism, refer to the link:
https://brainly.com/question/24599452
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HELP ME PLEASE!!! ASAP
it's c I believe
Explanation:
I believe
Answer: chromium and carbon monoxide
Explanation:
PLS I REALLY NEED HELP
If the relative positions of the sun and moon affect the ocean’s tides, why would it be helpful for sailors and other people who work on the ocean to understand patterns in the Earth-sun- moon system?
You have been given the task of designing a heat pack to relieve soreness in muscles by combining oxygen and iron. The more oxygen that is added to iron, the more it will heat up. Which of the following temperature changes would you be looking for?
A.There will not be a reaction
B.An increase in temperature, showing an endothermic reaction
C.You should not expect a temperature change because this is a physical reaction
D.An increase in temperature, showing an exothermic reaction
Answer:
an increase in temperature showing an endothermic reaction
Explanation:
the atmospheric oxygen is supplied to the iron .An endothermic reaction is any chemical reaction that absorbs heat from its environment.
A gate made of painted iron is beginning to rust in areas where the paint has worn away. The paint served as a protective barrier between the iron and the oxygen in the air.
Why is the formation of rust considered a chemical process
A. Rust and iron are completely different substances with different properties.
B. Rust is just a different state of matter than iron.
C. Rust is a different color than iron.
D. Rust has the same arrangement and types of atoms as pure iron.
Answer:
I would say A
Explanation:
when rust forms it is a completely different substance and a chemical change is when a new substance forms, hope this helps!
glacial striations in the bedrock of south africa indicate that glaciers once moved across the african continent the presence of glaciers on the surface of africa is evidence that
The presence of glaciers on the surface of Africa is evidence that it moved outwards from a central point in southern Africa.
What is a Glacier?This is defined as the persistent body of dense ice that is constantly moving under its own weight.
Glaciers being found on African surface depicts that the movement occurred outward from Southern Africa during the period.
Read more about Glaciers here https://brainly.com/question/6666513
Shay constructed a scientific model of the carbon cycle. She included plants, animals, industry, fossil fuels, and the atmosphere. Which of the following arrows belongs in Shay’s model?
Answer:
no one can answer your question because you have shown no arrows.
This is the chemical formula of Nitrogen gas.
N₂
Which of the following is NOT true of nitrogen gas?
A. It is made of two atoms.
B. It is a molecule.
C. It is an element.
D. It is a compound.
Answer:
D
Explanation:
N₂ is not a compound because it is not made up of two or more different elements - it is only made up of nitrogen atoms
Hope this helps!
What type of force is known for exerting an upward force on objects in a fluid?
1. buoyant force
2. friction force
3. gravitational force
4. magnetic force
The First person to answer will get the brainliest!!!!!!
Answer:
The answer is 1, Buoyant force.
Explanation:
What causes the seasonal changes viewed in the night sky?
Answer:
If you look at the night sky different
times of the year you see different
constellation.This change due to the
motion of the earth in it's orbit around
the sun.The shift of the sky is really
the motion of the earth around the sun.
Explanation:
Hope it helps
Explanation:
the factors which bring about the chemical reaction
Slow cooling of hot magma leads to the formation of ___________ crystals
Answer:
Slow cooling leads to the formation of large crystals. If the crystals remain undisturbed while cooling, they grow according to a regular pattern. Magma closer to the surface cools much faster than magma that hardens deep below ground. With rapid cooling, there is no time for magma to form large crystals.
Explanation:
Hope it's help
Answer:
large
Explanation:
Explain the green house effect (make sure that you explain the role of the Nitrogen and Carbon cycle)
Answer:
Nitrogen emissions such as ammonia, nitrogen oxide and nitrous oxides contribute to particulate matter and acid rain. Nitrous oxide is a particularly potent greenhouse gas as it is over 300 times more effective at trapping heat in the atmosphere than carbon dioxide.
Explanation:
Plz help! Please write your answer in complete sentences and write a proper answer!
FIrst on to answer will get a brainliest!!! Thx!
Answer:
When launching a rocket in space, the rocket's fuel starts burning and is pushed downward in the form of a gas. Due to which an external force is generated on the rocket in an upward direction which is a reaction of the force of burning fuel gas.
Plz, Help! Read the instructions and answer the question! First one to answer will get brainliest!
Answer:
H₂S: Hydrogen Sulfide: 3 atoms
HCl: Hydrochloric acid: 2 atoms
NaCl: Sodium Chloride: 2 atoms
CaCO₂ : Calcium Carbonate: 3 atoms
Explanation:
I'm not sure about the answer but this is the best I could do hope it helps
since I'm a 9th grader I know something about this.
Answer:
wish i could help but i dont remember learning this
Explanation:
A food scientist is determined to create a mango that looks exactly like a mango but tastes like salmon. Can this be achieved through artificial selection? Why or why not?
Which of the following always changes when a substance undergoes a chemical change?
A. State of matter of the substance.
B. Arrangement of the atoms composing the substance.
C. Color of the substance.
D. Mass of the substance.
Answer:
C
Explanation:
All chemical reactions will show a change in color.
Name the 5 characteristics needed for a substance to be a mineral
naturally occuring, solid, inorganic, crystalline, structure, ans the same chemical composition throughout.
Answer:
A mineral has to be naturally occurring, inorganic, solid, crystal structure and definite chemical composition.
Explanation:
Which items are minerals or contain minerals? Check all that apply.
asap please:)
-lawn fertilizer
-topsoil
-a diamond necklace
-a copper electrical wire
-a cellular phone
Answer:
Hey dude....
Explanation:
This is ur answer.....
Check all because all of them contain minerals.....Hope it helps!
Brainliest pls!
Follow me! :)
Answer:
lawn fertilizer, topsoil, and a diamond necklace
Explanation:
lawn fertilizer and topsoil are coming out of the ground, therefore some amount of minerals will be in them, such as iron added to it to make whatever its going on grow stronger.
a diamond necklace is a jewel that is coming out of the ground. it is categorized as a raw mineral.
I'm not 100 percent sure about the copper wire and the cell phone.
I do belive copper is a mineral.
Hydrogen and oxygen undergo a chemical reaction to form water. How much water will be created if hydrogen has a mass of 3.56 g and the oxygen has a mass of 25.32 g?
Answer:
22.88g
Explanation:
Hope this helped <3
In which direction does friction act?
1. in the same direction as the motion
2. at right angles with the motion
3. the opposite of the direction of motion
First one to answer will get a brainliest!
Answer: the opposite of the direction of motion
Explanation:
How does gravity act on an object?
1. exerts force upward on an object
2. repels objects
3. pulls objects towards the Earth
4. restores an object to its original position
Need answer asap!! First one to answer will get a brainliest!!
Answer:
3 can i have brainliest?
Explanation:
Which of the following always changes when a substance undergoes a chemical change?
A. State of matter of the substance.
B. Arrangement of the atoms composing the substance.
C. Color of the substance.
D. Mass of the substance.
Answer:
A. State of matter of the substance.
Explanation:
During a chemical change, the composition of matter always changes.
Answer:
I would say C.
Explanation:
My best bet is C but in all honesty, i have no clue. -hope my non-helping helped :D
You push on an object with an applied force. What is the "reaction" force to your push?
1. the object moving forward
2. the object being pulled by Earth
3. the object pushing back on you
4. the object being lifted up
Answer:
1. The object is moving forward.
Explanation:
Mixing baking soda and vinegar is an example of an endothermic reaction. This means...
A. baking soda and vinegar are products in this reaction.
B. energy is taken in during the chemical reaction.
C. energy is released during the chemical reaction.
D. there is no change in energy during the chemical reaction.
Answer: think a
Explanation:
can someone solve this question please
Answer:
I can't see the question
Explanation:
Choose a property of matter and research how this property affects the way matter interacts with the world around it. Find out how the property is useful in nature or how humans make use of it.
What does this property describe?
How does the property differ between different types of matter?
Is this property used in any technology or by nature in any way?
Record your research.
NEED HELP RIGHT NOW!!!!
Answer:
Liquid foundation is a property it describes solutions, volume. weight is a property from the monocules in lighter than air. which is a natural way to simplify systematic independence. for science. Onced liquid forms a mass of ascetain size it would be used for more technology. Differences in property which are properties: oxegenation. temeratures, measurements. maybe to form independant examples.
Please help me with this
How do proteins respond to help heal a wound?
How does protein help with wound healing? Your body needs protein to help build and repair muscle, skin, and other body tissues. Protein also helps fight infection, balance body fluids, and carry oxygen through your body. When you have a wound that's healing, think of food as medicine.
to help build and repair muscle, skin, and other body tissues.
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Martin slowly pours an unknown liquid into a container that originally had some water in it. He is measuring the temperature in the container as he does this.
The temperature in the container rises very fast.
What kind of change is likely to be happening in the container?
A. A physical change.
B. A chemical change.
C. Neither a chemical nor a physical change, only a temperature change.
D. No evidence of any type of change.
Answer:
B
Explanation:
temperature is a characteristic of a chemical change