Explain how the model you developed shows that when oxygen combines with hydrogen to form water, no atoms are left over from the reaction.
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The making of any compound requires the joining of a different element with the help of various bonds, these bonds are as follows:-
Covalent bondIonic bondSigma bondAccording to the question, the atoms of oxygen and the hydrogen molecules joins together in their vacant space and join together with the help of a covalent bond.
The bond changes the physical state of the element and together they form a liquid which is water.
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the sense that needs will be met
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im soooooo confused lol
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In Erikson's theory of psychosocial development, infants develop a sense of trust if their needs are met or mistrust if they are not.
can somebody help me out with this question?
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3 element
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H2SO4 has 2 hydrogen atom, 1 sulfur atom, 4 oxygen atoms that are chemically bonded.
What is an ampere?Explain
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the SI base unit of electrical current.
Answer:
the SI base unit of electrical current.
Explanation:
Make a list of different weather patterns (windy, rainy, sunny, snow, etc.) and the
barometric pressure that usually accompanies each of these weather conditions
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Answer:
rainy javscsaka nauafaa jaahwgw jauagsusbwvNs qo hags qkw
A silver ring reacts with compounds containing sulfur in the air to form silver sulfide, a black substance that makes up the tarnish on the surface of silver objects. To remove that tarnish from the ring, students placed it in a pan lined with aluminum foil and added hot water. Baking soda was added to the hot water and stirred. Students made observations about the process. Which observation of this process provides evidence of a chemical reaction? *
A- Hot water heated the aluminum foil
B- The liquid solution changed color
C- The pan was lined with aluminum foil
D- The hot water cooled
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Answer: B
Explaination: The liquid solution changed color means is turned into a different substance with different properties. It is chemical change .
Liquid solution changed color provides an evidence of a chemical reaction as it is accompanied by a chemical change.
What is a chemical change?Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical changes:
1) inorganic changes
2)organic changes
3) biochemical changes
During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
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the hot metal bar starts cooling as soon as it is pulled out of the forge (oven). where does the heat go? choose all that apply
a.) the tools in the form or conduction
b.) his skin in the form of radiation
c.) the air in the form of convection
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Answer:
a) in form of conduction
Plz I nee help will give brainliest
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-The students in Ms. Wilson’s science class were asked to create analogies to describe the function of organelles in a cell. Of the statements below, which one best represents the organelle and its function? a. Camille described the nucleus as a donut because it has a hole in the middle of it. b. Simon described the chloroplast as a water filter because it filters out the bad things from entering a cell. c. Ricardo described the vacuole as a security guard because it allows things into the cell.
d. Angie described the lysosome as a vacuum because its function is to clean the cell.
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Answer:
D. Angie described the lysosome as a vacuum because its function is to clean the cell.
Explanation:
Because vacuumes clean and so do that part of the organelles
Please answer this question correctly i really need it. Be serious.
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Answer:
I think A but to be fair if you get it wrong I am a 6th grader
Explanation:
Answer:
The first one
Explanation:
How many times are you testing your prototype? Question 3 options:
10 3 0
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I know this is a lot but I need help on just a few thanks!
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The length of a path between two points
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Answer:
Displacement is the direction from the starting point and the length of a directly line from the starting point to the ending point.
What defines an interaction between two substances as a chemical reaction is when one or more new substances form from one or more other substances.
What new substances were formed?
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Answer:
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.
Explanation:
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The chemical reaction is the combination of atomic orbitals of different or same elements. The new product formed can be a molecule or compound which is having different physical and chemical properties than the initial substances.
What are chemical reactions ?A chemical reaction is a chemical change that make the formation or breaking or both of chemical bonds. There are different types of chemical reactions such as synthesis reactions, decomposition, combustion, displacement reaction etc.
The product of these reactions depends on how the elements in the reactant side reorganize. The physical and chemical properties of the new product will be different from that of the initial substance.
The interaction of two atoms can be of different types depends on their nature and can bond through ionic bonding, covalent bonding, hydrogen bonding etc.
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a large block of ice can heat up a small pool of liquid nitrogen. ice is 0 celcius but liquid nitrogen is -210 celsius. so the heat from the ice will warm up the nitrogen pool until they reach equilibrium. true or false?
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If a 6 ohm wire is connected to a 10 volt battery, what will the current be?
1.67 amperes
6 amperes
60 amperes
.67 amperes
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Answer:
60 amperes
Explanation:
GIVING BRAINLIEST FIVE STARS AND HEART!
In your own words explain the difference between potential energy and kinetic energy. Give an example of how one can be transformed into the other.
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Answer:
Potential energy moves kinetic energy doesnt.
Explanation:
ANSWER ASAP GIVING BRAINIEST FIVE STARS AND HEART!
In your own words describe some properties of energy.
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I can describe one prop. of energy: it can not be created or destroyed. It can be transferred, or converted, though.
Answer:
Number 6 explains it
Explanation:
how does oxygen get in the water choose all that apply
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Answer:
Oxygen dissolves in surface water due to the aerating action of winds. Oxygen is also introduced into the water as a byproduct of aquatic plant photosynthesis. And When dissolved oxygen becomes too low, fish and other aquatic organisms cannot survive.
Explanation:
Be serious with your answers please!!!!
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Answer:
A is your answer-all of the reactants were liquid and evaporated
Explain how the models you developed show that when methane combines with oxygen to form carbon dioxide and water, no atoms are left over from the reaction.
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Answer: the bonds in the methane and oxygen come apart, the atoms rearrange and then re-bond to form water and carbon dioxide
Explanation:^
From the law of conservation the reactant and product will be always same, that is no atom is extra added or no atom is left over.
What is law of conservation?
The Law of Conservation of Mass basically states that matter can neither be created nor destroyed.
From the reaction, we can see that left hand side are reactant and right hand side is products. In left side 1 carbon, 4 hydrogen, and 4 oxygen. Right hand side 1 carbon, 4 oxygen, 4 hydrogen.
Mathematically, we can say that- LHS = RHS
The arrow mark represent the reaction runs forward direction, methane gas combustion with oxygen to produce carbon dioxide and water.
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A yellow ball with a mass of 2 kg is rolling across the floor at 3 m/s. A red ball with a mass of 3 kg is rolling across the same floor at 3 m/s. Which ball has greater kinetic energy, and why?
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Answer:
In order to determine which ball has a higher kinetic energy, we first look at the formula of kinetic energy which is:
kinetic energy = 1/2 * mass * velocity²
The factors influencing the kinetic energy of an object are its mass and its velocity. Both of the balls have the same velocity; however, the red ball has a greater mass. Therefore,
The red ball has greater kinetic energy, because it has a greater mass.
We may also determine these quantitatively using the formula given and the kinetic energy of the yellow ball works out to be 9 J and that of the red ball is 13.5 J.
Explanation:
1.What are two factors that are necessary for hurricane development?
2.What kind of weather occurs after a cold front passes through an area?
3.What kind of weather occurs after a warm front passes through an area?
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Answer:
1. tropical storms and hurricanes
2.After a cold front moves through your area, you may notice that the temperature is cooler, the rain has stopped, and the cumulus clouds are replaced by stratus and stratocumulus clouds or clear skies.
3.Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. Warm fronts move more slowly than cold fronts because it is more difficult for the warm air to push the cold, dense air across the Earth's surface.
Explanation:
What other property of water that relies on adhesion?
HINT: It involves defying gravity.
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Answer:
Adhesion and cohesion are water properties that affect every water molecule on Earth and also the interaction of water molecules with molecules
Explanation:
*Explanation* Adhesion of water
Water likes to stick to itself, but under certain circumstances, it actually prefers to stick to other types of molecules. Adhesion is the attraction of molecules of one kind for molecules of a different kind, and it can be quite strong for water, especially with other molecules bearing positive or negative charges.
For instance, adhesion enables water to “climb” upwards through thin glass tubes (called capillary tubes) placed in a beaker of water. This upward motion against gravity, known as capillary action, depends on the attraction between water molecules and the glass walls of the tube (adhesion), as well as on interactions between water molecules (cohesion).
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how does a balanced chemical equation represent the conservation of matter in a chemical reaction?
a. the type of matter in the products is different from the type of matter in the reactants.
b. there are more atoms in the reactants than in the products.
c. there are fewer atoms in the reactants than in the products.
d. the number of atoms of each element in the reactants equals the number of atoms of each element in the products.
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.
A toy truck falls off a table. As it falls, the toy truck has potential energy and kinetic energy.
Explain how the toy truck can have potential and kinetic energy at the same time.
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As the toy falls off a table, it can have potential and kinetic energy at the same time because of the height (h) and velocity (v) of the object, respectively.
When the truck falls off a table it has potential energy (P) and kinetic energy (K) given by:
[tex] P = mgh [/tex] (1)
[tex] K = \frac{1}{2}mv^{2} [/tex] (2)
Where:
m: is the mass of the toy
g: is the acceleration due to gravity
h: is the height of the table
v: is the velocity of the toy
Kinetic energy (equation 2) is related to the velocity (v) of the moving toy while it is falling from the table.
Potential energy (equation 1) is due to the gravitational acceleration (g) exerted on the toy when it is at a height (h) above the table. This energy decreases as the object approaches the ground (where "h" is zero).
Therefore, the truck can have potential and kinetic energy at the same time because of the height and velocity of the toy, respectively.
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How many different design ideas of the puff car do you need to draw? Question 2 options:
A. 6 B. 1 C. 3
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How are the convection currents found in Earth’s air and oceans similar?
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hope this helps :D
i have no idea pls help ty 11 points
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Happy Holidays! :)
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Looking at the information given in the description, the experiment is testing for the effects of the different salts on the growth of the plants.
This means that the type of salt is the independent variable, or the variable being manipulated and tested.
To ensure fair results, some parts of the experiment would need to be kept the same, which is the control. The only answer choice that makes sense in this instance is A. water.
Why might the presence of kudzu make it difficult for other plants to compete for resources?
Practice
Your answer should include at least 2 complete sentences.
Be sure to check your grammar and spelling.
Please dont do copyright from another website.
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Answer:
Kudzu kills trees and other plants by smothering and choking them with its fast-growing vines, and as the heavy vines engulf trees or shrubs their weight can actually break or uproot trees. A kudzu vine can grow as much as a foot per day and sixty feet during a growing season.
Explanation: