Describe how you use two living and two nonliving natural resources every day.

Answer:

All of the signals pass through the thalamus

Explanation:

The molarity of a solution formed when you add 200 mL of water to 50 mL of 5. 0 M HCl is 1.25M.

The molarity of a solution can be calculated using the following formula:

M1V1 = M2V2

Where;

M1 × 200 = 50 × 5

200M1 = 250

M1 = 250/200

M1 = 1.25M

Therefore, the molarity of a solution formed when you add 200 mL of water to 50 mL of 5. 0 M HCl is 1.25M.

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0 J

Work = Force * Displacement

Since displacement is 0 m (object isn't moving), work would also be 0.

1)

methyl

CH3 (mol)

CH3- (struc)

2)

ethyl

C2H5

CH3-CH2-

3)

propyl

C3H7

CH3-CH2-CH2-

4)

butyl

C4H9

CH3-CH2-CH2-CH2-

5)

pentyl

C5H11

CH3-CH2-CH2-CH2-CH2-

6)

hexyl

C6H13

CH3-CH2-CH2-CH2-CH2-CH2-

7)

heptyl

C7H15

CH3-CH2-CH2-CH2-CH2-CH2-CH2-

8)

octyl

C8H17

i will stop writing the condensed formula ust add another CH2

9)

nonyl

C9H19

10)

decyl

C10H21

11)

Undecyl

C11H23

12)

dodecyl

C12H25

Answer: C.

Explanation:

Voluntary muscle are muscles that you can control.

Answer: 6.7 kPa

Explanation:

Pressure Total = P(partial 1) + P(partial 2) + P(partial 3) →

94.5 kPa = 65.4 kPa + 22.4 kPa + P(partial 3) →

6.7 = P(partial 3) :)

According to the Dalton's law of partial pressures the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures exerted by each individual gas in the mixture.

So, P[tex]_o[/tex] = P[tex]_1[/tex]+ P[tex]_2[/tex]+ P[tex]_3[/tex]

[tex]\longrightarrow[/tex]94.5 = 65.4+ 22.4 + P[tex]_3[/tex]

[tex]\longrightarrow[/tex]94.5 = 87.8+ P[tex]_3[/tex]

[tex]\longrightarrow[/tex] P[tex]_3[/tex] = 94.5 - 87.8

[tex]\longrightarrow[/tex]P[tex]_3[/tex] = 6.7 kpa

Therefore, partial pressure of the 3rd gas of the mixture is 6.7 kpa .

Based on the data provided, the mass of the object is inversely proportional to acceleration and directly proportional to the time taken to cover the distance.

Given that the force applied on an object is constant, the acceleration of the object is inversely proportional to the mass of the object.

According to the Newton's second law of motion, the acceleration of an object is inversely proportional to the mass of the object and directly proportional to the force and takes place in the direction of the applied force.

Based on the data provided, the more mass the car has, the more time it takes to complete the distance.

Therefore, it can be concluded that the mass of the object is inversely proportional to acceleration and directly proportional to the time taken to cover the distance.

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Answer:

An organism's role within an ecosystem depends on how it obtains its food. Plants and animals obtain their food in very different ways, so they have very different roles in an ecosystem. The way in which an organism obtains food also affects its interactions with other organisms in the ecosystem.

Explanation:

Answer:

Salt marshes have shallower water than oceans

Explanation:

oceans go way deeper then salt marshes with the deepest part of thr ocean at 35,876ft deep

Answer: Salt marshes have shallower water than oceans.

Explanation: oceans are deeper

Answer:

84.0 g

Balanced equation: 4Fe + 3O2 --> 2Fe2O3

Find moles of oxygen:

Find mass of O2

✥ So, in 1.25 moles of NO2, you would have 1.25 moles of N and (2 x 1.25) 2.50 moles of O.

0.1 mole = Avogadro's number of particles (approx. 6.022x10^23 particles/mol)

So, #oxygen atoms = 2.50 mol x 6.022x10^23 atoms/mol

6.022x10^23 atoms/molOr, approximately 1.51x10^24 oxygen atoms.

Hope this answer helps you ✨

Explanation:

Ethanoic acid is a weak acid and dissociates:

C

H

3

C

O

O

H

⇌

C

H

3

C

O

O

−

+

H

+

For which

K

a

=

[

C

H

3

C

O

O

−

]

[

H

+

]

[

C

H

3

C

O

O

H

]

=

1.8

×

10

−

5

Please remember that these are equilibrium concentrations .

p

K

a

=

−

log

K

a

=

−

log

[

1.8

×

10

−

5

]

=

4.74

n

=

c

×

v

∴

n

C

H

3

C

O

O

H

=

0.20

×

200.0

1000

=

0.04

Answer:

The cell's volume will remain stable.

Explanation:

If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell's volume will remain stable. If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.

3 liters

________________

Answer:

The pH of a 4.4 M solution of boric acid is 4.3

Explanation:

at t=0  cM              0             0

at eqm                    

So dissociation constant will be:

Give c= 4.4 M and  = ?

Putting in the values we get:

Also

Thus pH of a 4.4 M  solution is 4.3

The plants which have a fibrous root system are

A fibrous root system is a root system which consists of large mass of roots of nearly equal size

Some few examples of plants with fibrous roots system are as follows:

In conclusion; the plants which have a fibrous root system are grasses and corns.

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The limiting reactant for the combustion reaction for acetylene is oxygen.

Limiting reagents are those reagent which is present in less quantity as compared to the other reagent present for the formation of product.

Given chemical reaction is:

2C₂H₂(l) + 5O₂(g) → 4CO₂(g) + 2H₂O(g)

From the stoichiometry of the reaction, it is clear that:

2 moles of C₂H₂ = react with 5 moles of O₂

37 moles of C₂H₂ = react with 5/2×37=92.5 moles of O₂

And given moles of oxygen is 81 moles.

81 moles of O₂ = reacts with 2/5×81=32.4 moles of C₂H₂

And given moles of C₂H₂ = 81 moles.

Hence, O₂ is the limiting reagent.

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Answer:

O2 is the limiting reactant.

(a) When more gas is added, the number of moles of the gas increases, and  the total pressure of gas inside same vessel will increase.

(b) When the conatiner's volume is increased, the total pressure of gas inside the vessel will decrease.

The ideal gas law of general gas equation, can be used to describe the behavior of an ideal gas.

The ideal gas law is given as;

PV = nRT

where;

When more gas is added, the number of moles of the gas increases, and  the total pressure of gas inside same vessel will increase.

When the conatiner's volume is increased, the total pressure of gas inside the vessel will decrease.

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The theoretical yield is the reaction yield that measures the product of the reaction from the conversion of the limiting reagent. The theoretical yield is 160 gm.

Mass or the theoretical yield is the result of the multiplication of mole and the molar mass of the compound.

The reaction between hydrogen and oxygen is shown as,

[tex]\rm 2H_{2} + O_{2} \rightarrow 2H_{2}O[/tex]

Moles of water is calculated as:

[tex]\begin{aligned}\rm moles &= \rm \dfrac{mass}{molar\; mass}\\\\&= \dfrac{18}{2}\\\\&= 9\;\rm moles\end{aligned}[/tex]

The theoretical yield of water is calculated as:

[tex]\begin{aligned}\rm \text{weight of water} &= \rm moles \times molar \; mass\\\\&= 9 \times 18\\\\&= 162 \;\rm gm\end{aligned}[/tex]

Therefore, option D. 160 gm is the theoretical yield of water.

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Taking into account the definition of calorimetry, the temperature change of A will be one sixth of the temperature change of B.

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

So, the equation that allows to calculate heat exchanges is:

Q = c× m× ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case, for object A:

QA = cA× mA× (ΔT)A

and for object B:

QB = cB× mB× (ΔT)B

You know:

Object A has double the specific heat of object B. ⇒ cA= 2× cB

Object A has triple the mass of object B. ⇒ mA= 3× mB

If the same amount of heat is applied to both objects ⇒ QA= QB

Then:

cA× mA× (ΔT)A= QB = cB× mB× (ΔT)B

2× cB × 3× mB× (ΔT)A=  cB× mB× (ΔT)B

Solving:

6× cB × mB× (ΔT)A= cB× mB× (ΔT)B

(ΔT)A= (cB× mB× (ΔT)B) ÷ (6× cB × mB)

(ΔT)A=[tex]\frac{1}{6}[/tex] (ΔT)B

Finally, the temperature change of A will be one sixth of the temperature change of B.

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The negative ion in aqueous sodium hydroxide, NaOH(aq) is hydroxide ion, OH-.

A neutralization reaction is a reaction between an acid and a base to form salt and water only.

The reaction between vinegar and NaOH is a neutralization reaction which produces a salt and water only.

NaOH is composed of a positive sodium ion, Na+ and a negative hydroxide ion, OH-

Therefore, the negative ion in the NaOH(aq) used in this titration is hydroxide ion, OH-.

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Answer:

Polyester

Explanation:

Answer:

734.0 grams

Explanation:

Because 16.0 and 855 mL it is 734.0 grams :) hope it helps

Answer:

Arsenic (33As) has 33 known isotopes and at least 10 isomers.

the only time electrons are equal to protons is when the charge is neutral. if the charge is positive then there's more protons.

if the charge is negative then there's more electrons.

The citrate synthase, isocitrate dehydrogenase, and the α-ketoglutarate dehydrogenase complex are the three key control points.

The key control points in citric acid cycle are the reactions catalyzed by citrate synthase, isocitrate dehydrogenase, and the α-ketoglutarate dehydrogenase complex.

So we can conclude that citrate synthase, isocitrate dehydrogenase, and the α-ketoglutarate dehydrogenase complex are the three key control points.

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The citric acid cycle is a chemical cycle that releases stored energy.  Citrate synthase, isocitrate dehydrogenase, and alpha-ketoglutarate dehydrogenase are the control point of the cycle.

The citric acid cycle or the TCA cycle (tricarboxylic acid cycle) is the chemical series of reactions that releases energy from food sources like fats, carbohydrates, and proteins.

The TCA cycle includes enzymes and many substances that regulate it but three major points are Citrate synthase, isocitrate dehydrogenase, and alpha-ketoglutarate dehydrogenase.

Therefore, they get inhibited, regulated, and limit the rate of the reaction.

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#SPJ4

75% dominant and 25% resistive

So

No of moles=n

[tex]\\ \rm\rightarrowtail PV=nRT[/tex]

[tex]\\ \rm\rightarrowtail n=\dfrac{PV}{RT}[/tex]

[tex]\\ \rm\rightarrowtail n=\dfrac{814(3)}{25R}[/tex]

[tex]\\ \rm\rightarrowtail n=2442/25R[/tex]

[tex]\\ \rm\rightarrowtail n=97.7Rmol[/tex]

Mass is the measure of the quantity of the substance present in the sample containing a compound or molecule. The mass of sucrose in the sample is 171 g.

The mass of the compound in the sample is the product of the number of moles of the substance and the molar mass of the compound.

Given,

The molar mass of the sucrose compound = 342.3 g/mol

Number of moles of sucrose = 0.500 moles

Mass of sucrose is calculated as:

[tex]\begin{aligned}\rm mass &= \rm moles \times molar \; mass\\\\&= 0.500 \;\rm moles \times 342.3 \;\rm g/mol\\\\&= 171.15 \;\rm gm\end{aligned}[/tex]

Therefore, option A. 171 gm is the mass of sucrose.

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The correct answer is option A: 171 grams

Explanation: Got 90% on the quiz on edge and got this answer right