Help pretty please :)

Help Pretty Please :)

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Answer 1
the answer is 15 bc you multiply the coefficient but the subscript

Related Questions

Photosynthesis is an endothermic chemical reaction that forms sugars from carbon
dioxide, water, and the sun's energy. Which of the following must be true of
photosynthesis?

The reaction can take place only if energy is added.

The reactants are oxidized.

The photosynthesis reaction produces ions.

The molecular bonds in carbon dioxide are very weak.

Answers

Answer:

The reaction can take place only if energy is added.

what do we call the cammell their​

Answers

Answer:

You have to write the full question

QUESTION 27
20 points
Compare and contrast how the selection of police officers in 1840s New York differed from police officer selection under the European
model.

Answers

Explanation:

During the 1800s in England, relations police, which became composed of male volunteers, became organised to observe over the protection and protection in their relatives. As Britain's populace step by step expanded, so did the quantity of crimes tha…

During the 1800s in England, relations police, which became composed of male volunteers, became organised to observe the protection and protection of their relatives.

What is protection?

Protection is any measure taken to guard a thing against damage.

During the 1800s in England, relations police, which became composed of male volunteers, became organised to observe the protection and protection in their relatives.

As Britain's populace step by step expanded, so did the number of crimes that had been committed. This intended that regulation and order additionally needed to improve.

The New York City Police Department (NYPD) originates withinside the Government of New York City and tries to manipulate growing crime in early to mid-nineteenth century New York City.

This expanded crime became because of an expanding populace, brought about usually through negative Irish immigrants starting withinside the 1820s.

Whereas, as societies have become greater heterogeneous and complex, the function of the police is turning greater demanding. To fulfil this function, law enforcement officials want numerous broadly acknowledged competencies and private qualities, however much less is thought approximately how they're valued through police recruits.

Thus, we've tested the perspectives of police recruits in six European nations on 3 skills or traits of regarded significance for police work: knowledge, leadership, and the cap potential to shape precise family members with residents.

We have additionally explored versions in perspectives of recruits in distinct businesses and modifications of their perspectives for the duration of their schooling. For those purposes, we used survey facts accumulated withinside the RECPOL project.

Since the facts had been accumulated from distinct populations and at distinct times, the evaluation is primarily based totally on dimension invariance methodology, and one of the objectives became to spotlight the significance of rigorous appraisal of the pleasant and comparison of comparable survey facts the use of such methods.

The consequences display each variation and similarities in perspectives of recruits withinside the surveyed nations and modifications for the duration of schooling.

Police lifestyle seems to be an extensive factor, as greater objects withinside the carried out device can be validly utilized in comparisons of recruits in businesses with comparable policy traditions.

The consequences additionally confirmed exciting contrasts, e.g. new recruits in Sweden rated precise family members with residents greater surprisingly than recruits in businesses with a greater army history, however, this sample was modified for the duration of schooling, probably because of the effects of the recruitment process, schooling and lifestyle in the businesses.

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What is the chemical composition of shale?

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Answer:

30.8 percent quartz, 4.5 percent feldspar, 3.6 percent carbonate, <0.5 percent iron oxides, 60.9 percent clay minerals, 1 percent organic material, and 2 percent other materials.

—————— —should be treated chemically before deposing it to rivers. ​

Answers

——Industrial waste——— should be treated chemically before deposing it to rivers. ​

=》The waste from factories & industries are highly acidic/base. This leads to the increase/decrease of the pH value of water in the rivers making it contaminated & unfit for drinking. This also causes a huge problem for aquatic organisms.

=》Industrial waste should be neutralized before depositing it into water bodies to reduce these risks.

_______

⚜ Hope it helps :))

Answer: Industrial waste

Explanation:

Hydrogen fusion creates _____ and lots of energy.

Answers

Explanation:

Fusion processes require fuel and a confined environment with sufficient temperature, pressure, and confinement time to create a plasma in which fusion can occur. The combination of these figures that results in a power-producing system is known as the Lawson criterion. In stars, the most common fuel is hydrogen, and gravity provides extremely long confinement times that reach the conditions needed for fusion energy production. Proposed fusion reactors generally use hydrogen isotopes such as deuterium and tritium (and especially a mixture of the two), which react more easily than hydrogen to allow them to reach the Lawson criterion requirements with less extreme conditions. Most designs aim to heat their fuel to around 100 million degrees, which presents a major challenge in producing a successful design.

As a source of power, nuclear fusion is expected to have many advantages over fission. These include reduced radioactivity in operation and little high-level nuclear waste, ample fuel supplies, and increased safety. However, the necessary combination of temperature, pressure, and duration has proven to be difficult to produce in a practical and economical manner. Research into fusion reactors began in the 1940s, but to date, no design has produced more fusion power output than the electrical power input.[1] A second issue that affects common reactions is managing neutrons that are released during the reaction, which over time degrade many common materials used within the reaction chamber.

Fusion researchers have investigated various confinement concepts. The early emphasis was on three main systems: z-pinch, stellarator, and magnetic mirror. The current leading designs are the tokamak and inertial confinement (ICF) by laser. Both designs are under research at very large scales, most notably the ITER tokamak in

name 2 elements that are liquid at room temperature and describe their colour​

Answers

Answer:

Bromine

Mercury

Bromine (symbol Br and atomic number 35) is a reddish-brown liquid, with a melting point of 265.9 K. Mercury (symbol Hg and atomic number 80) is a toxic shiny silvery metal, with a melting point of 234.32 K.

help me someone! giving brainliest

Answers

Answer:

last or second

Explanation:

report me if not correct

Answer:

Should be the second one

Explanation:

In comments

Thanks for the Brainliest

Will give Brainliest
Use the image to answer the question.

An illustration shows the process that takes place in a cold pack. The warm cold pack has ammonium nitrate on one side and water on the other. The water is kept separate in a thin plastic bag. The pack is squeezed and the inner bag bursts. The mixture cools as ammonium nitrate dissolves.

Which kind of reaction is shown in this image?

(1 point)

It is an endothermic reaction because the system takes energy from the surroundings.

It is an exothermic reaction because the surroundings take energy from the system.

It is an endothermic reaction because the surroundings take energy from the system.

It is an exothermic reaction because the system takes energy from the surroundings.

Answers

Answer:

it is an endothermic reaction because the system takes energy from the surrounding.

Answer:

It is an endothermic reaction because the system takes energy from the surroundings.

Explanation:

I did the test.

What two things does pure substances have?
a.) Different chemicals and different properties.
b.) Same chemicals and different chemical properties.
c.) Same chemicals and same physical properties.
d.) Same chemicals and same chemical properties.

Answers

A. Correct answer I think

Relate microscopic bonding properties to solid state properties

Answers

There are many factors that we can take into account when attempting to relate microscopic bonding properties to solid-state properties, for example, the rigid and immobile nature of solid states and their molecular bonds.

Solid-state properties are simply put, the properties we can observe and measure when studying an element in solid form. These solids have specific characteristics such as:

Structural rigidityThey do not change shapeDo not change the volume they occupy

and so on, which although not initially obvious, are caused by the microscopic molecular bonds of their atoms.

The microscopic properties of solids are very similar to that of the solid-state properties. The atoms of a solid are very close together and strongly bonded to one another, because of this the atoms form a very rigid structure that resists changes to their shape or volume, much like the macroscopic properties of the solid. This serves to show how these properties may cause the solid-state effects we can observe normally.  

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Predict the product of each monosaccharide oxidation reaction.

Answers

The complete oxidation of the monosaccharide shown will create a carboxylic acid.

Monosaccharides can be oxidized to carboxylic acids. Recall that monosaccharides have an aldehyde or ketone group at one end and a CH2OH group at the other end.

For the monosaccharide shown, oxidation may lead to the conversion of COH group  to acid (-COOH). This confirms the presence of -COH yielding the product C4H8O5.

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Zingerone, one of the flavor molecules in ginger,
contains only C, H, and O. Combustion of 10.0 g
of zingerone produces 24.91 g of CO2 and
6.522 g of H20. Determine the molar mass of the
compound if it is between 150.0 and 220.0 g/
mol. Provide an answer to four significant
figures.

Answers

The molecular formula of the compound is C12H15O3 hence the molar mass of the compound is 207 g/mol.

We need to obtain the number of moles of carbon, hydrogen and oxygen in the compound;

Carbon = 24.91 g/44g/mol × 1 mole of carbon = 0.566 moles

Mass of carbon =  0.566 moles × 12 g/mol = 6.792 g

Number of moles of hydrogen = 6.522 g/18 g/mol × 2 moles = 0.725 moles

Mass of hydrogen = 0.725 moles  × 1 g/mol = 0.725 g

Mass of oxygen = 10 - (6.792 g + 0.725 g) = 2.483 g

Number of moles of oxygen = 2.483 g/16 g/mol = 0.155 moles

Now we must divide through by the lowest number of moles;

C - 0.566/0.155   H - 0.725/0.155     O - 0.155/0.155

C - 4                    H - 5                        O - 1

The simplest formula is C4H5O Recall that the molar mass of the compound lies between 150.0 and 220.0 g/mol

4(12) + 5(1) + 16 = 69

Hence; n = 3 and the molecular formula of the compound is C12H15O3

The molar mass of the compound is; 12(12) + 15(1) + 3(16) = 207 g/mol

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What happens to the kinetic energy of the bowling ball when it reaches the pins?​

Answers

Answer:

The bowling ball has kinetic energy as it moves toward the pins.

Explanation:

Answer:

Most of it is transferred to the pins, but some of it is changed into heat and sound energy.

Explanation:

study island

HELPP PLISS :(

Achemist analyzes two samples. One sample contains 14 g of element X and 6.0 g of element Y. The second sample contains 28 g of element X and 6.0 g of element Y. Does it appear that the two samples are the same substance? Explain the reasons for your answer. ​

Answers

A chemist analyzes two samples. One sample contains 14 g of element X and 6.0 g of element

hidrógeno
notacion electronica

Answers

Answer:

Hydrogen

Electronic notation

Explanation:

What is epoxy?
………………..

Answers

Answer:

Epoxy is the family of basic components or cured end products of epoxy resins.


Any of a class of adhesive plastics or other materials that are polymers of epoxides

Why do we need to build models of molecules to study atomic composition?

Answers

Answer:

for better understanding and visual understanding

The table shows the boiling points of fluorine, chlorine and bromine.
Element
Boiling point in °C
Fluorine
-186
Chlorine
-34
Bromine
+59
(c) Explain why the boiling points in the table are low.

Answers

Explanation:

the chemicals are group 7 elements and one of their characteristics is that the melting and boiling point increase progressively

Stop asking I don’t know

Which unit is 10,000 times LARGER than the MICRO unit?

Answers

Answer:

Micro means 0.000001. So 10,000 times larger than that is the Centi unit, which is 0.01

Fruit juice when boiled taste sweeter than sucrose because ​

Answers

Answer :see explanation

Explanation:

the sweet carbohydrate in fruit is not sucrose , it is fructose.

and fructose tastes sweeter than sucrose

fructose and glucose minus water equals sucrose

and fructose is sweeter than glucose

I am not feeling well​

Answers

I hope you feel better soon! :)

I need this done soon!
What is a saturated solution?

A. A solution with as much dissolved solute as it can hold at a given temperature.
B. A heated solution with more dissolved solute can hold at a lower temperature.
C. A solution that holds less dissolved solute than is possible at a given temperature.
D. A solution that holds as much solvent as possible at all temperatures.

Answers

Answer: A

Explanation:

A saturated solution is a chemical solution that contains the highest bound solvent level. In a saturated solution, the extra solution will not dissolve. Depending on a multitude of variables, the quantity of fluid that can we can add in a solvent to create a saturated solution.

What is the expression for the equilibrium constant for the
reaction N2+ 3H2 = 2NH3?

Answers

Answer:

For the reaction N2 + 3H2 2NH3 , the equilibrium expression may be written as K [ NH3 ]^2/ [ N2 ] [ H2 ]^3 .

Explanation:

Answer:

s K [ NH3 ]^2/ [ N2 ] [ H2 ]^3 .

Explanation:

because I know -_-

Why is there an octet rule in writing Lewis structures?​

Answers

Answer:

Before we can sketch the Lewis structures of molecules, we must first understand the octet rule. The octet rule asserts that when atoms combine to create compounds, electrons are gained, lost, or shared among them, resulting in a stable electron configuration defined by eight valence electrons as a result. These rules are used in conjunction with the main-group components of the second period.

Explanation:

Hope it helps:)

outlines four uses of fat and oil​

Answers

Answer :

Fats and oils are used throughout the world for both food applications and industrial uses. They are consumed in butter, shortening, margarine, salad oils, and cooking oils, as well as in animal feeds, fatty acids, soaps, personal care products, biodiesel, paints (made from alkyd resins), lubricants, and greases.

Answer:Insulating and ProtectingRegulating and Signaling. Aiding Absorption and Increasing Bioavailability.Contributing to the Smell, Taste, and Satiety of Foods.

(e) alkaline earth element with the least massive atoms​

Answers

Hopefully this helps you

The alkaline earth element with the least massive atoms is beryllium (Be). Beryllium, located in Group 2 of the periodic table, possesses the lowest atomic number and atomic mass within the alkaline earth elements.

Among the alkaline earth elements, which are found in Group 2 of the periodic table, beryllium (Be) stands out for having the least massive atoms. The periodic table is organized in a way that elements are ordered by increasing atomic number, which corresponds to the number of protons in an atom's nucleus. For alkaline earth elements, the atomic numbers increase from beryllium (Be) with atomic number 4 to radium (Ra) with atomic number 88.

Atomic mass, on the other hand, takes into account the sum of protons and neutrons in an atom's nucleus, as electrons contribute very little to the overall mass. Since beryllium (Be) has the lowest atomic number in the alkaline earth group, it also has the fewest protons and neutrons among its isotopes, leading to a lower atomic mass compared to other elements in the same group.

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which has the shorter bond lengths in Alkane,alkene and alkynes​

Answers

Answer:

alkanes

Alkynes have the strongest bond. Followed by alkenes and then alkanes. This is because in alkynes there are 3 bonds between at least two carbons

help! giving brainliest

Answers

It’s the 3d one


Good luckkkkkkkk

How much heat is required to increase the temperature of 150 g of water from
38°C -55°C?

Answers

Answer:

-55°C

Explanation:

Bwcause 38°C is gonna make it colder so thats why you should use that.

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