In which way is the word [ document ] used in this sentence?

My research paper on osmosis was [ documented ] with scientific sources from around the world.

A. verb- to record or make note
B. verb-to support with citations or references
C. noun - a written or printed paper​​​

Answer:

866.142 inches

Explanation:

By formula

To solve this problem, I'll need some additional information related to the molar mass of butane (C4H10). Please provide the molar mass of butane so that I can proceed with the calculations.

Answer:

N. #3

Explanation:

this one just makes the most sense. If you mess with line stone to much or you are using to much heat around lime stone it will go boom. So the correct answer is #3.  

\(\\ \sf\longmapsto Mg+HCl\longrightarrow MgCl_2+H_2\)

\(\\ \sf\longmapsto Mg+2HCl\longrightarrow MgCl_2+H_2\)

while zinc is an important mineral with numerous functions in the body, it is not true that grains are the most reliable food source of zinc. A balanced diet that includes a variety of foods can provide adequate zinc intake for most people.

How to solve the problem?

The statement that is NOT true of zinc is "Grains are the most reliable food sources of zinc." While grains can be a source of zinc, they are not necessarily the most reliable source.

Zinc is an essential mineral that plays important roles in many biological processes, including immune function, protein synthesis, wound healing, and DNA synthesis. It is involved in various enzymatic reactions, and acts as a cofactor for many enzymes. Zinc is also important for proper growth and development, especially during childhood and adolescence.

Excess zinc intake can lead to decreased copper absorption, as both minerals compete for absorption in the intestines. This can lead to copper deficiency, which can cause anemia neutropenia, and other health problems. Therefore, it is important to maintain a balance between zinc and copper intake.

While grains can be a source of zinc, other foods such as meat, seafood, and dairy products are also good sources. Vegetarians and vegans may need to pay particular attention to their zinc intake, as plant-based sources of zinc may be less bioavailable than -based sources. Zinc supplements can also be used to prevent or treat deficiencies, but should be used with caution as excessive intake can have negative health effects.

In summary, while zinc is an important mineral with numerous functions in the body, it is not true that grains are the most reliable food source of zinc. A balanced diet that includes a variety of foods can provide adequate zinc intake for most people.

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Answer:

Element X has two isotopes and an average atomic mass of 110.12 amu. One isotope has a mass of 109.82 amu and an abundance of 79.43%. What is the mass of the other isotope?

Answer:

have thick fur on feet protecting them from the hot ground; have large, bat-like ears radiate body heat and help keep them cool; have long, thick hair that insulates them during cold nights and protects them from the hot sun during the day; have light coloured fur to reflect sunlight and keep their bodies cools.

Explanation:

I hope this helps!

Answer:44.01% of the spheres are copper

Explanation:

mass Cu + mass Pb = 4.35kg =  4.35 x 1000 = 4350g

But

Volume= mass / density

Let the volume of copper be C  

density of  Cu = 8.94 g/cm^3

Mass of copper = 8.94C

Let the volume of Lead be L  

density of  lead = 11.34g/cm^3

Mass of lead  = 11.34L

Since  

mass Cu + mass Pb = 4350kg

therefore

8.94C + 11.34L = 4350g----- EQN A

also

volume of copper + volume of lead =  423 cm^3

Volume of Lead ,L=423-C

putting the value of C = 423-L in Equation A becomes

8.94C + 11.34L = 4350g

8.94C + 11.34(423-C)= 4350g

8.94C+ 4796.82-11.34C=4350

4796.82-4350=11.34C- 8.94

446.82=2.4C

C= 186.175

Volume of copper = 186.175cm^3

Percentage copper = volume copper / total volume metal x 100/1

= 186.175 cm^3 / 423 cm^3 x 100/1

= 44.01%

Two key criteria that engineers must prioritize are efficiency and safety. By emphasizing efficiency and safety during process development, engineers can create robust and reliable processes that not only maximize productivity but also prioritize the well-being of personnel and the environment.

When developing a process, engineers need to consider several important criteria. Two key criteria that engineers must prioritize are efficiency and safety.

Efficiency is crucial in process development to ensure optimal use of resources, time, and energy. Engineers strive to design processes that maximize productivity, minimize waste, and reduce costs. This involves optimizing reaction conditions, streamlining workflow, and implementing automation where possible. Efficiency considerations also extend to energy consumption, raw material utilization, and overall process sustainability.

Safety is another critical aspect that engineers must prioritize. They need to identify and mitigate potential hazards associated with the process, ensuring the safety of both personnel and the environment. This involves conducting thorough risk assessments, implementing safety protocols, and designing equipment and systems with safety features. Engineers must also consider the safe handling and storage of materials, as well as potential risks during transportation and disposal.

By emphasizing efficiency and safety during process development, engineers can create robust and reliable processes that not only maximize productivity but also prioritize the well-being of personnel and the environment.

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Divide the weight with 1,000 times the component or material's density to the conversion from grammes to litres. Sulfur hexafluoride in litres is produced from 11.0g of sulphur hexafluoride gas. 0.0753138778434317.

What volume of water is equivalent to one kilogramme. When pure water attains a maximum density of one kg/l at a temperature around 39.2 °F or 4 °C, it has a volume of 1 litre. 1 kilogramme of water is somewhat more than 1 litre at higher temperatures.

As there is one mole of SF in every six moles, there are now 0274 moles in total. After solving, we get the result of.164 mole of fluorine. Adding 1 mole will also have 6 moles od fluorine, giving us 0.0274 moles in s f, 6, corresponding to 6 times in 0.0274 mole of chlorine. Hence, in 4 grammes.

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Answer:

Silver.

Explanation:

Hello!

In this case, we can consider the specific heat as the property that we can analyze in order to answer to this question. In such a way, as the specific heat is known as the energy required to modify the temperature of 1 g of the substance by 1 °C, since the masses of all the substances are the same, we can that their specific heats are respectively 0.240, 0.444 and 4.184 J/(g°C), from the equation:

\(Q=mCp\Delta T\)

We can see that the higher the specific heat (Cp) the lower the change in temperature considering their inversely proportional relationship. However, as 100 J of energy is applied to all the substances, we can see that silver will exhibit the largest temperature change because a higher change is needed to fit with the provided energy.

Best regards.

it is false it reacts with oxygen

give brainliest if right

To solve such this we must know the concept of oxidation reaction. Therefore, the given statement is incorrect. When iron rust it reacts with oxygen from the air.

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

In oxidation reaction, one of the element of the given compound oxidises to its higher oxidation state. Rusting is an example of oxidation reaction. The balanced equation for the rusting reaction can be given as

4Fe + 3O\(_2\) + 6H\(_2\)O → 4Fe(OH)\(_3\)

Therefore, the given statement is incorrect.

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(a) the molecular formula of the compound is C₆H₁₂.

(b)  the molecular formula of the compound is NH₂Cl.

(a) Given the empirical formula CH₂ and a molar mass of 84 g/mol, we need to determine the molecular formula. To do so, we need to find the factor by which the empirical formula needs to be multiplied to achieve the given molar mass.

The empirical formula CH₂ has a molar mass of 14 g/mol (12 g/mol for carbon + 2 g/mol for hydrogen).

To find the factor, we divide the molar mass by the empirical formula mass:

Factor = (molar mass) / (empirical formula mass) = 84 g/mol / 14 g/mol = 6

Therefore, the molecular formula is obtained by multiplying the empirical formula by the factor:

CH₂ × 6 = C₆H₁₂

Thus, the molecular formula of the compound is C₆H₁₂.

(b) Given the empirical formula NH₂Cl and a molar mass of 51.5 g/mol, we follow a similar approach.

The empirical formula NH₂Cl has a molar mass of 51.5 g/mol (14 g/mol for nitrogen + 2 g/mol for each hydrogen + 35.5 g/mol for chlorine).

To find the factor, we divide the molar mass by the empirical formula mass:

Factor = (molar mass) / (empirical formula mass) = 51.5 g/mol / 51.5 g/mol = 1

Therefore, the molecular formula is the same as the empirical formula: NH₂Cl

Hence, the molecular formula of the compound is NH₂Cl.

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Combining "hydro" and "genes" in the context of the Latin roots, we can interpret it as "water origin" or "water-related origin."

The term "hydro" in Latin means "water." It is derived from the Greek word "hydor," which also signifies water. "Hydro" is commonly used as a prefix in scientific terms related to water or hydrogen. In the context of chemistry, "hydro" often denotes a compound or process involving water or hydrogen atoms. For example, hydrocarbon refers to organic compounds composed solely of hydrogen and carbon atoms.

On the other hand, "genes" in Latin is derived from the Greek word "genos," which translates to "origin" or "birth." In biology, the term "genes" refers to the segments of DNA that contain instructions for the development and functioning of living organisms. Genes determine various traits, such as physical characteristics, behavior, and susceptibility to certain diseases. They play a fundamental role in the transmission of hereditary information from one generation to another.

This interpretation aligns with the understanding that hydrogen, which is essential for life and abundant in water, plays a vital role in various biological and chemical processes.

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Answer:

7.79 × 10³ L

Explanation:

Step 1: Calculate the total number of moles of carbon dioxide released

50 moles of carbon dioxide are released per hour. The moles released in a six-hour period is:

6 h × 50 mol/1 h = 300 mol

Step 2: Convert the temperature to the Kelvin scale

When working with gases, we need to consider the absolute temperature. We can convert from Celsius to Kelvin using the following expression.

K = °C + 273.15

K = 35 °C + 273.15 = 308 K

Step 3: Convert the pressure to atm

We will use the conversion factor 1 atm = 760 Torr.

740 Torr × 1 atm/760 Torr = 0.974 atm

Step 4: Calculate the volume of the gas

We will use the ideal gas equation.

P × V = n × R × T

V = n × R × T / P

V = 300 mol × (0.0821 atm.L/mol.K) × 308 K / 0.974 atm

V = 7.79 × 10³ L

The equilibrium constant for the reaction given that the equilibrium concentration of [PH₃] = 0.250 M, [H₂] = 0.580 M, and [P₄] = 0.750 M is 7.3

From the question given above, the following data were obtained:

The equilibrium constant for the reaction can be obtained as shown below:

Equilibrium constant = [Product]ᵐ / [Reactant]ⁿ

Where

Equilibrium constant = [H₂]⁶[P₄] / [PH₃]⁴

Equilibrium constant = [(0.580)⁶ × 0.750] / (0.250)⁴

Equilibrium constant = 7.3

Thus, the equilibrium constant for the reaction is 7.3

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bnswer

a. O +O / → O₂

b. K + Cl → KCl

c. C + O → CO

d. H + F → HF

e. I + I → I₂

f. S + O + O → SO₂

g. Na + Na + S → Na₂S

h. Li + Cl → LiCl

i. Ca + Br + Br → CaBr₂

j. N + N → N₂

A

Answer:

2/ Protons and neutrons are found in the nucleus.

Explanation:

Answer:

oxygen liquid

Explanation:

Answer:

Si System

hope this helped!

The final temperature of the mixture given that 25 g of water at 25 °C is mixed with 25 g of water at 65 °C, is 45 °C

The final temperature of the mixture can be obtained by calculating the equilibrium temperature of the mixture. This is shown below:

Heat loss by warm water = Heat gain by cold water

MᵥᵥC(Tᵥᵥ - Tₑ) = MC(Tₑ - T)

Cancel out C

Mᵥᵥ(Tᵥᵥ - Tₑ) = M(Tₑ - T)

25× (65 - Tₑ) = 25 × (Tₑ - 25)

Cancel out 25

65 - Tₑ = Tₑ - 25

Collect like terms

65 + 25 = Tₑ + Tₑ

90 = 2Tₑ

Divide both side by 2

Tₑ = 90 / 2

Tₑ = 45 °C

Thus, we can conclude that the final temperature the mixture is 45 °C

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Answer:

See explanation

Explanation:

According to the valence shell electron pair repulsion theory, the shape of a molecule depends on the number of electron pairs on the valence shell of the central atom in the molecule.

So, in order to identify the electron domain geometry of a molecule (number of regions of electron density)

1) draw the full Lewis structure of the molecule/ion

2) indicate the electron pairs surrounding the central atom

3) count the number of electron pairs surrounding the central atom

4) decide on the electron pair geometry using valence shell electron pair repulsion theory.

In this exercise we have to use our knowledge of electrons to describe our molecular formula, so we have to:

The valence shell is the outermost shell that an atom can present, that is, it is the shell furthest from the nucleus of an atom.

Electrons are negatively charged particles that revolve around the atomic nucleus and have a mass 1836 times less than that of protons and neutrons. Electrons are particles that are part of the constitution of the atom.

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Answer:

  B.  Multiple organisms can have the same common name

Explanation:

You want to know why scientists use scientific names instead of common names when they classify organisms.

Common names may be based on general appearance, behavior, or habitat, so may be applied to organisms of different species. For example, there are about 56 different species of the animal called a "rat."

Scientific names are used for classification so the identification can be more precise. This avoids the problem that multiple organisms can have the same common name.

If words faill to bring social justice then sometimes violence can be justified.

Answer:

air,water,rocks,and the ibex

Explanation:

these are the non living things I'm pretty sure

Answer:

methane

Explanation: methane is obtained from the decaying of flora and fauna mostlyunder damp