ASAP, NO TROLLS 20 points!!!!

ASAP, NO TROLLS 20 Points!!!!

Answers

Answer 1

Answer:

1.- Chemical change

2.- Because the atoms in the image are tranformed into a new molecule

3.- Yes, it does

4.- Due to the amount of atoms are the same both in products and reagents

Explanation:

Answer 2

Answer:

1.- Chemical change

2.- Yes it does ,because the atoms in the image are transformed into a new molecule

3.- Yes, it does because energy is not being created or destroyed

4.- Due to the amount of atoms are the same both in products and reagents


Related Questions

What is the amount of water vapor in the air called?

relative humidity

humidity

dew point

freezing point

Answers

Answer:

relative humidity

Explanation:

What are two reasons that someone would want to become a scientist?
1 point
Your answer

Answers

Two reason someone would want to become a scientist to make exciting discoveries and discovered new life on our planet. Also you could solve huge problems that somebody else couldn’t solved. This is why somebody would want to be a scientist.

Using the model of the periodic table, which element pictured represents an unreactive gas?

Answers

Answer:

2

Explanation:

Nobel gasses are not reactive and are the far right group on the periodic table.  This is because they have a full valence electron shell which is the most stable electron configuration.  Most reactions occur in order for an atom to fill its valence shell and since they already have a full valence shell there is no reason for them to react.

Susan is investigating physical changes. To do this, she places some ice into a large bowl and seals it with a lid. She leaves the bowl on the counter for several hours until all of the ice has melted. Using a balance, Susan determines that the mass of both the water and the ice are equal. Why is the mass of the ice and the water the same? (SC.8.P.9.1)

Answers

Answer:

No mass loss

Explanation:

The mass of ice and the water in the different state are equal because the same of quantity of matter is present in both state of matter of matter.

In essence, the mass of the physical change process is conserved. When mass is conserved, matter is neither created nor destroyed but can be changed from one form to the other. This is in compliance with the law of conservation of matter. So, no mass was lost in the physical change process and the mass will remain the same.

Using the model,what is the mass of the atom pictured?
A)3amu
B)5amu
C)7amu
D)9amu

Answers

Answer:

with 20 protons (p=20) and 22 neutrons (n=22)? 47 ... Listed below are the charges and masses of four ... a) +2,2 amu c ) +1, 1 amu least b) ... pudding” Model.

Explanation:

Answer:

7amu

Explanation:

Atoms are composed of three particles.  The proton, neutron, and electron.  

The mass of the atom in amu is just the number of protons and neutrons in the nucleolus since they both have a mass of about 1 amu.  Electrons are not counted since they have an incredibly small mass that ultimately does not matter.  

This atom has 3 protons (positively charged particle) and 4 neutrons (particle with no charge) which together gives a mass of 7 amu.

Provide background information about different types of chemical reactions.
Synthesis Reactions
Decomposition Reactions
Single Replacement Reaction
Double Replacement Reaction
Combustion
Then explain, in a general sense, how you will determine which of the above types of reactions are occurring in your experiments.

Answers

Answer:

.

Explanation:

-Synthesis reactions are reactions that appear when two distinct atoms or molecules engage to structure a specific molecule or compound. Most of the time, when a synthesis response occurs, electricity is launched and the response is exothermic. However, an endothermic consequence is additionally possible.

-A decomposition response starts offevolved from a single substance and produces extra than one substance; that is, it decomposes. One substance as a reactant and greater than one substance as the merchandise is the key attribute of a decomposition reaction. For example, in the decomposition of sodium hydrogen carbonate (also recognized as sodium bicarbonate)

-A single-replacement response (sometimes referred to as a single-displacement reaction) is a chemical response in which one aspect is substituted for every other factor in a compound, producing a new aspect and a new compound as merchandise

-A double-replacement response (sometimes referred to as a double-displacement reaction) takes place when components of two ionic compounds are exchanged, making two new compounds. A attribute of a double-replacement equation is that there are two compounds as reactants and two distinctive compounds as product

-A combustion response happens when a reactant combines with oxygen, many instances from the atmosphere, to produce oxides of all different factors as products; any nitrogen in the reactant is transformed to elemental nitrogen, N2. Many reactants, referred to as fuels, incorporate normally carbon and hydrogen atoms, reacting with oxygen to produce CO2 and H2O

A chemical reaction may involve one or more reactants to yiled one or more products.

Types of reactions

Below we are going to discuss the types of reaction under the following headings;

Synthesis reaction - This is a reaction in which two or more substances come together to yiled a single product.

Decomposition reaction - This involves the breakdown of a substance into new substances.

Single Replacement Reaction- This is a type of reaction in which an atoms replaces another in a compound.

Double Replacement Reaction - This is a reaction in which cations exchange anion partners in a reaction

Combustion - This is a reaction in which a substance is burnt in oxygen.

Learn more about reactions:https://brainly.com/question/17434463?

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Condensation point AND freezing point of oxygen in C and F?

Answers

Answer:54.36 K (−218.79 °C; −361.82 °F)

Explanation:

Help me please:(:(:( with my bellwork
for brainiest

Answers

Answer:

Elements are made of only one kind of atom

Compounds are made of 2 or more elements chemically bonded together

Explanation:

Its right there????

Which of the following is a characteristic of covalent compounds?

Answers

they have bonds where electrons are shared between atoms.lower melting points and electrical conductivity compared to ionic compounds.

which type of energy would most likely create the worst environment disaster from an accident or spill

Answers

Answer:

the dessert

Explanation:

because it is dry and very few anmals live there

FOR 35 POINTS & A BRAINIST*
1.) For an atom of sulfur, there are
A.) two electron shells with 6 valence electrons
B.) three electron shells with 6 valence electrons
C.) four electron shells with 6 valence electrons
D.) five electron shells with 6 valence electrons

2.) Which atom has four electron shells with 7 valence electrons?
A.) F
B.) CI
C.) Br
D.) I

3.) Which atom has three electron shells with 8 electrons in its outermost orbit?
A.) He
B.) Ne
C.) Ar
D.) Kr

4.) Which method should be used to draw electrons that are involved in a collision during a chemical reaction?
A.) Bohr's model
B.) Lewis dot model
C.) Addition model
D.) Subtraction model

Answers

1.) B

2.) C

3.) C

4.) B

I genuinely double checked that these were right! I hope it helps!!

HELPPPPPPPPPPPPPPPPPPP

Answers

Answer:

not sure about the first one, but i know SDS provides information about the last 3.

Explanation:

What is the molar mass of B,(Croa)g?
a. 186 g/mol
b. 369 g/mol
C. 232 g/mol
d. 250 g/mol

Answers

I think the answer is C

Magnesium is a metal that is commonly used in products that need to be lightweight. Suppose a 2.00-kg piece of magnesium has 8160 J of energy added to it. Its temperature increases 4k. What is the specific heat of magnesium. Show your work

Answers

Answer:

The specific heat of magnesium is 1.02 J/g.K

Explanation:

To calculate the energy involved in the heating of the metal (magnesium), we use the following expression:

energy = mass x Cp x ΔT

We have the following data:

mass = 2.00 kg x 1000 g/1.00 kg = 2000 g

energy = 8160 J

ΔT = 4 K

Thus, we can calculate the specific heat of magnesium (Cp) in J/g.K as follows:

⇒ Cp = energy/(mass x ΔT) = 8160 J/(2000 g x 4K) = 1.02 J/g.K

How many atoms of each element are in the chemical formula Ca(OH)2? ​

Answers

1 calcium, 2 oxygen, and 2 hydrogen. :)
Calcium hydroxide, Ca(OH) 2 consists of one calcium atom (A r = 40), two oxygen atoms (A r = 16) and two hydrogen atoms (A r = 1).

WHAT DOES THE MASS OF AN OBJECT MEASURE HURRYYYYYYYYYYYYYYYYYYYYY

Answers

Answer:

object's inertial property

Explanation:

The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.

Answer:

The mass of the object internal property, or the amount of matter it contains

Explanation:

Hope this helps! Happy Holidays!

what is an extensive prperty of matter

Answers

Answer:

Volume

Mass

Size

Weight

Length

Explanation:

Extensive properties do depend on the amount of matter that is present. An extensive property is considered additive for subsystems. Examples of extensive properties include:

Volume

Mass

Size

Weight

Length

Good day please help me thank you

Answers

I think c I’m not positive about the question but I think c

Answer:

D Transportation it makes sence if it doesn't just re read it

true or false, water boils at 100°c

Answers

Answer:

This is true

Explanation:

hhhhhhhhhheeelp !!! give 20 pintos

Answers

Answer:

you can run out of money the supplier could run out or they could stop making the renewable.

Explanation:

Someone please help will mark as brainliest

Answers

1. solute is the substance that is being dissolve,while solvent is dissolving medium

2.saturated is solution that contain maximum amount of solut that capable of being dissolve and supersaturated is solution that contain less amount or medium of solut that capable being dissolve : example vinger

3. is a number placed in front of a chemical symbol or formula. It shows how many atoms or molecules of the substance are involved in the reaction. For example, two molecules of hydrogen would be written as 2 H2, and two molecules of water would be written 2 H2O . yes it's can be change only in caseWhen you balance an equation you can only change the coefficients

What is the advantage of using Microsoft Excel to create a graph, as opposed to pen and paper?
Chemistry class I NEED HELP FAST

Answers

Answer:

the advantage of using Microsoft Excel to create a graph, as opposed to pen and paper is it will help you get the right answer

Explanation:

Fill in the blanks using terms from this unit.

Even though plants are rooted in the ground, they still move, exert
Blank Options
choose your answer...
and do
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choose your answer...
.
Plant cells have very strong cell walls that allow
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choose your answer...
to build up inside of the cell as water is absorbed. This pressure is called
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choose your answer...
.
When turgor pressure is high enough in a cell, the cell walls become
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choose your answer...
and As a result, the cell becomes rigid and the plant is able to stand
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choose your answer...
and straight. When a plant does not get enough water, the turgor pressure inside of the cells
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choose your answer...
.
A decrease in pushing against the cell wall causes the cells to lose their
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choose your answer...
and This causes the plant to begin to droop, or
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choose your answer...
.
When the wilted plant gets enough water, the cells will become rigid again, and the plant will stand firm and straight once again.

Answers

Answer:

Even though plants are rooted in the ground, they still move, exert force, and do work.

Plant cells have very strong cell walls that allow pressure to build up inside of the cell as water is absorbed. This pressure is called turgor.

When turgor pressure is high enough in a cell, the cell walls become firm and as a result, the cell becomes rigid and the plant is able to stand tall and straight.

When a plant does not get enough water, the turgor pressure inside of the cells decreases. A decrease in pressure pushing against the cell wall causes the cells to lose their shape and shrink. This causes the plant to begin to droop or wilt.

When the wilted plant gets enough water, the cells will become rigid again, and the plant will stand firm and straight once again.

Explanation:

Can someone define these for me

Answers

Answer:

These are all in order....

Explanation:

- closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system

- a solute is a substance dissolved in another substance, known as a solvent

- A solvent is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid

- a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent)

- a nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy

- a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.

- Half-life is the time required for a quantity to reduce to half of its initial value

- the determination of the age or date of organic matter from the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains. The ratio between them changes as radioactive carbon-14 decays and is not replaced by exchange with the atmosphere.

- any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed

Which statement about cellular respiration in plants and animals is true?

Both plants and animals need water to start cellular respiration.

Both plants and animals release energy from glucose in cellular respiration.

Both plants and animals take in carbon dioxide to break down glucose in cellular respiration.

Both plants and animals need chlorophyll to make glucose before using it in cellular respiration.

Answers

Answer:

Both plants and animals release energy from glucose in cellular respiration.

Eating around chemicals in the work place is considered safer because today’s chemicals are more diluted than in the past

Answers

Eating around chemicals in the workplace is considered safe because today's chemicals are more diluted than in the past. Hazard tio

what is formula for Bromine?

Answers

Br2

I looked it up and it said that Bromine's formula is Br2

Answer:Br2

Explanation:

Someone please help will mark as brainliest

Answers

Answer:

A. 2Fe + 3Cl2 --> 2FeCl3

B. 2Fe + 3O2 --> 2Fe2O3

C. C4H10O + 4O2 --> 4CO2 + 5H2O

D. C7H16 + 11O2 --> 7CO2 + 8H2O

Explanation:

1. All ___matter______ is made of atoms that cannot be ______________________ or ____________________. 2. All _______________ of a given __________________ are ___________________ in mass and __________________.

Answers

Answer:

All the matter that is made of atoms that cannot be broken or beaten into thin sheet .2All matters of a given book are in mass and mixture

balancing equations help!!

Answers

1) N2+3H2–> 2NH3
2) 2KClO3–> 2KCl+3O2
3) 2NaCl+F2–> 2NaF+Cl2
4)Pb(OH)2+ 2HCl—> 2H2O+PbCl2
5) 2AlBr3+ 3K2SO4–> 6KBr+Al2(SO4)3
6) is already balanced

If you have any questions just let me know :)
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