Name the functional group in the
following molecule:
NH2
A. aldehyde
B. amine
C. amide
D. thiol

Region Z should be monitored more closely to avoid health issues.

Region Z should be monitored more closely to avoid potential health issues because region Z produces waste from chemical plants which are dangerous for our water and environment so we can conclude that Region Z should be monitored more closely in order to avoid health issues.

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574 grams of NaNO₃ is needed to make 4.50 L of a 1.50 M NaNO₃ solution.

Mass of any substance will be calculated from moles as:
n = W/M, where

W = required mass

M = molar mass

First we calculate the moles of NaNO₃ from molarity as:

n = M × V, where

M = molarity of NaNO₃ = 1.50 M

V= volume of NaNO₃ = 4.50 L

Moles of NaNO₃ = 1.50 × 4.50 = 6.75 moles

Given molar mass of NaNO₃ = 85 g/mole

Now we calculate all these values on the above equation and calculate the required mass of NaNO₃ as:

W = 6.75 × 85 = 573.75 g or 574 grams

Hence, 574 grams is the required mass of NaNO₃.

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Answer:

D: 574 g

Explanation:

The number of boxes is calculated by dividing the

total mass of hardware boxes by 1.00 kg

A hardware is a physical component of a system that can be touched and felt.

Because hardware are physical components, they always have a given mass.

Assuming, several hardware each of mass 1.00 kg is available to be chosen from.

Also, assuming that the sum total of the mass of all the hardware is known.

The number of boxes can be calculated as follows:

Therefore, the number of boxes is obtained by dividing the sum of the mass of the boxes by 1.00 kg.

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Answer:

lewis from stardew valley or who?

Explanation:

Answer:

releases energy from the food for us to use

Explanation:

Answer:

Calcium (Ca) reacts with Oxygen (O₂)

Calcium (Ca) reacts with Sulphur (S)

Calcium (Ca) reacts with Chlorine (Cl₂)

-TheUnknownScientist 72

Answer:

.0002

Explanation:

Tim conclude that all matter is mostly made of empty space due to presence of all mass in the nucleus.

An atom is mostly empty space because of its composition. The nucleus, which contains the protons and neutrons indicates the mass of the atom whereas the electrons are revolving around nucleus and there is nothing between orbits.

So we can conclude that all matter is mostly made of empty space due to presence of all mass in the nucleus.

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Answer:

A graph, luminosity, temperature, decreases

Explanation:

:)

The amount of heat released is 45.89kj.

The process involved in the reaction are

1.H20(314k)

2. H20 in solid form at 263k

Q= [m×Cpl ×Tfinal -Tinitial) + ∆H fussion

Q= amount of heat released = ?

m = mass of water = 27 g

cp(l) = specific heat of liquid water = 4.184 J/gk

Cp(s) = specific heat of solid water = 2.093 J/gk

∆H fussion = enthalpy change for fusion = 40.7 KJ/mole = 40700 J/mole.

Therefore, Q= 27 × 4.184j/gk × (314-2173k) + 40700j + (27g × 2.093j/gk ×273-263k).

Q = 45896.798j

Therefore, 1kj is 1000j

Therefore, the amount of heat released is 45.89kj.

Heat of formation is the amount of heat absorbed or released by a mole of elements during chemical reaction.

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q1 = 4.63

q2 = 61.1

q3 = .565

q4 = -66.3

Answer:

Heat can accelerate the rate of rigor mortis

Explanation:

Took the test

Heat accelerates the rate of rigor mortis by providing a favorable environment for the bacteria and causing decay. Therefore, option (1) is correct.

Rigor mortis can be described as the third stage of death. Rigor mortis is a recognizable sign of death which is characterized by the stiffening of the limbs caused by chemical changes in the muscles postmortem.

In humans, rigor mortis can take place as soon as 4 hours after death. It typically lasts no longer than 8 hours at room temperature. After death, aerobic respiration ceases, depleting the amount of oxygen used in the making of ATP. ATP is mostly needed to cause the separation of the actin-myosin cross-bridges while the relaxation of the muscle.

When oxygen gas is no longer available, the body can continue to produce ATP through anaerobic glycolysis. When the glycogen is depleted, the ATP diminishes, and the body enters rigor mortis due to unable to break bridges.

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#SPJ2

Answer: hatred and holes

Explanation: this basically is saying that you need to put god first and not let your hate grow or fester inside of you. By filling your holes(from tragic or life changing events) with god, instead of hate or anger, you are giving your life a better outcome.2 Corinthians 1:20 is implying that you need to put your faith in god and believe in him, if you do this, than anything is possible because your spirit is filled with his love and grace.
hope this helps

Please give brainliest

Thank you so much

Answer:

Water

Explanation:

H20 means

H = Hydrogen

2 = 2 Hydrogen atoms

O = Oxygen (1 atom)

Thanks!

Mark me brainliest!

Answer:

H20 is water (I wondered this question too in first grade) (sorry if I am wrong)

The four acids will require the same volume of the base to reach the equivalence point.

Strong acids completely ionize in waters while weak acids are only partially ionized in waters.

At 0.5 M concentration, the hydrogen ion concentrations of all four acids would be the same.

This means that each of the acids will require an equal volume of base concentration in order to get neutralized.

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Answer:

CasH52(1) + 38 O2(g) → 25 CO2(g) + 26 H2O(g)

Explanation:

We can confirm that the most likely reason for astronomers to see differences in the stars they observe is that stars are at different points in their life cycles.

Stars are said to have seven phases to their lives, which include them being:

Each of these phases of a star have vastly different characteristics and can explain the differences in the observations made by the astronomers.

Therefore, we can confirm that option 2 is correct in that the differences seen by the astronomers are likely because stars are at different points in their life cycles.

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Answer:

393 mL

Explanation:

Recall the ideal gas law:

[tex]\displaystyle PV = nRT[/tex]

Because only pressure and volume are changing and everything else remains constant, we have that:
[tex]\displaystyle P_1V_1 = k = P_2V_2[/tex]

Where k is some constant.

Hence, substitute and solve:

[tex]\displaystyle \displaystyle \begin{aligned} (753\text{ torr})(513\text{ mL}) & = (982\text{ torr})V_2 \\ \\ V_2 & = 393\text{ mL} \end{aligned}[/tex]

Hence, the new volume is 393 mL.

Check: because volume decreases with an increase in pressure, our answer fits within the context of the problem.

Answer:

petroleum is a fossil fuel formed over millions of years

Answer:

the permanganate is the opposite of potassiumation:



Explanation:

Answer:

radiation

Explanation:

radiation transfers heat through electromagnetic waves and can transfer heat with or without a medium

For the given chemical reaction, NH₄ - NH₃ and H₂O - H₃O is the acid - conjugate base pair.

An acid - conjugate base pair are those pairs which are differ by the only one proton or H⁺ ion.

Given chemical reaction is:

NH₄ + H₂O → NH₃ + H₃O

According to the Bronsted-Lowry theory, acids are those which gives H⁺ ion and bases are those which accept H⁺ ion in the aqueous solution. In the above reaction NH₄ is an acid as it losses H⁺ ion and NH₃ is the conjugate base of NH₄. Similarly, H₂O is a base as it accepts H⁺ ion and H₃O is the conjugate acid of H₂O.

Hence, NH₄ - NH₃ and H₂O - H₃O is the acid - conjugate base pair.

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Answer:

A

Explanation:

A

Ionic substances produce ions in solution while molecular substances produce molecules in solution.

A solution is a combination of solute and solvent. The species that occur in solution depends on the type of substance that was dissolved. Since the table is not shown, we do not know exactly what compounds were dissolved in solution.

Generally, if an ionic substance is dissolved in solutions that ions are present in the solution. If a molecular substance is dissolved in solution, molecules are present in solution.

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From the diagram, structure 1 would be the chloroplast and it represents the site of photosynthesis.

The image (see attached) is that of a plant cell and structure labeled 1 is the chloroplast.

The chloroplast of plant cells acts as the site of photosynthesis where inorganic materials are used to synthesize carbohydrates.

Plants generally serve as producers in food chains and thus, chloroplast helps sustain life.

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Answer:

D Structure 1 is a chloroplast which is the site of photosynthesis.

Explanation:

I got it correct on my test

Answer:

No, because the number of carbon, hydrogen & oxygen atoms on both sides of the equation are not equal.

Explanation:

For an equation to be completely balanced, there should be equal number of reactants and products.

Number of carbon atoms on reactant side = 16

Number of hydrogen atoms on reactant side = 16

Number of oxygen atoms on reactant side = 50

Number of carbon atoms on product side = 8

Number of hydrogen atoms on product side = 36

Number of oxygen atoms on product side = 34

Therefore, we can conclude that total number of reactants does not equal total number of products therefore, this equation is not completely balanced.

[RevyBreeze]

Answer:

8.3

Explanation: