Which statement best explains how organ systems work together to remove wastes?

Answer: pH = 10

Explanation: First solve for pOH using the equation pOH=-log[OH-] = 4

Then plug the pOH in the equation, pH + pOH =14

then solve for pH. pH =14 - 4 = 10

Answer:

pH= 10

Explanation:

The pH really depends on what your solution is.

For example, if we are assuming that the concentration of 1.0M is of a strong monoprotic acid e.g. HCl, it would be safe to assume that almost all of the 1.0M acid has dissociated into its H+ ion, and its conjugate base. Thus, the pH can be determined by taking the negative log(to base 10), of the concentration.

Inversely, if the solution is of a strong base, the pOH value would be found, assuming the steps above. This pOH value can be used to infer a pH from the formula - pH + pOH = 14 then 14 - 4 = 10

Finally, come the weak acids/bases, which follow the rules above, except as they only partially dissociate, one needs its equilibrium constant to determine its extent of ionisation, to substitute into the negative log. This also is the case for the second, and higher order dissociation of polyprotic acids e.g. H2SO4.the answer is 10

Hope it helps

Answer:

water is a water, but is also known as water. water means water, and the synonym of water is water, and antonym of water is non-water. water is located in earth. water's friends are pure water, salt water, dirty water and ice water. water's best friend is pure water, because when water gives water to pure water, pure water uses the water and gives back the water to the water.

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Explanation:

Answer:

The print is so little i cant read it. :( Sorry!

Explanation:

Answer:

Adenosine triphosphate

In science, ATP stands for adenosine triphosphate. This chemical, discovered in the 1920s, is important to all life. It stores and releases energy for many cellular processes. It is found in mitochondria.

Explanation:

Answer:

B.

Explanation:

i think its B

Answer:

52.2. The large chicken egg minus the human head is 52.2 g. The egg is not a good model because it does not resemble a human head. Also, the egg is made of parts such as food and things that are not similar to a human head. Furthermore, they are not the same shape.

Explanation:

Answer:

is highly respect is correct I promise!

Answer:

Pb²⁺ (aq) + 2I⁻ (aq) → PbI₂ (s)

General Formulas and Concepts:

Explanation:

Step 1: RxN

Pb(NO₃)₂ (aq) + KI (aq) → PbI₂ (s) + KNO₃ (aq)

Step 2: Balance RxN

Pb(NO₃)₂ (aq) + 2KI (aq) → PbI₂ (s) + 2KNO₃ (aq)

Step 3: Ionic Equations

Total Ionic Equation:

Pb²⁺ (aq) + 2NO₃⁻ (aq) + 2K⁺ (aq) + 2I⁻ (aq) → PbI₂ (s) + 2K⁺ (aq) + 2NO₃⁻ (aq)

Cancel out spectator ions.

Net Ionic Equation:

Pb²⁺ (aq) + 2I⁻ (aq) → PbI₂ (s)

Answer:

Adenine pairs with thymine and guanine pairs with cytosine

Mass C₆H₈O₇ : 0.531484 g

Reaction

3NaHCO₃ (aq) + C₆H₈O₇ (aq) → 3 CO₂ (g) + 3 H₂O (l) + Na₃C₆H₅O₇ (aq)

MW NaHCO₃ : 84 g/mol

mass NaHCO₃ : 7.10² mg=0.7 g

mol NaHCO₃ :

[tex]\tt mol=\dfrac{0.7}{84}=0.0083[/tex]

mol C₆H₈O₇ :

[tex]\tt \dfrac{1}{3}\times 0.0083=0.00277[/tex]

MW C₆H₈O₇ : 192 g/mol

mass C₆H₈O₇ :

[tex]\tt mass=0.00277\times 192=0.53184[/tex]

Answer:

compound

Explanation:

Answer:

The answer is compound

Explanation:

Answer:

Yes.

General Formulas and Concepts:

Chemistry - Stoichiometry

Explanation:

Step 1: RxN

Zn + HCl → ZnCl₂ + H₂

Step 2: Balance RxN

Zn + 2HCl → ZnCl₂ + H₂

Alcohol is both a Depressant and a Muscle Relaxer. Therefore the answer would be both!

Hope this helps :)

The number of moles per mm³=2.032 x 10⁻⁹

In general, the gas equation can be written  

[tex]\large {\boxed {\bold {PV = nRT}}}[/tex]

where  

P = pressure, atm , N/m²

V = volume, liter  

n = number of moles  

R = gas constant = 0.082 l.atm / mol K (P= atm, v= liter),or 8.314 J/mol K (P=Pa or N/m2, v= m³)

T = temperature, Kelvin  

P=1.3 kPa=1.3.10³ N/m²

T = 77 K

R = 8.31 J/mol.K

[tex]\tt PV=nRT\\\\\dfrac{n}{V}=\dfrac{P}{RT}\\\\\dfrac{mol}{m^3}=\dfrac{1.3\times 10^3}{8.31\times 77}\\\\\dfrac{mol}{m^3}=2.032\\\\2.032\dfrac{mol}{m^3}\times \dfrac{m^3}{10^9cm^3}=2.032\times 10^{-9}\dfrac{mol}{cm^3}[/tex]

Answer:

D.

Explanation:

because it was formed at the same time as the planet's

Answer:

HI(aq) + KOH(aq) --> KI(aq) + H2O(l)

Explanation:

HI is an acid and KOH is a base, this means that the reaction would be a neutralization reaction.

The equation is given as;

HI + KOH --> KI + H2O

Adding the physical states we have;

HI(aq) + KOH(aq) --> KI(aq) + H2O(l)

Answer:

true

Explanation:

Explanation:

The equation doesn't satisfy the Law of Conservation of Matter because There are more oxygen atoms after the reaction than there were before the reaction.

Therefore,

Option C is correct ✔

Answer:

false

Explanation:

Answer:

0.45 g

Explanation:

Step 1: Given data

Step 2: Calculate the moles of methionine (n)

We will use the following expression.

n = C × V

n = 150 × 10⁻³ mol/L × 20 × 10⁻³ L

n = 3.0 × 10⁻³ mol

Step 3: Calculate the mass of methionine (m)

We will use the following expression.

m = n × M

m = 3.0 × 10⁻³ mol × 149.21 g/mol

m = 0.45 g

Answer:

6 neutrons

Explanation:

The mass of on atom is the number of protons plus neutrons. This element is bromine as its' mass number is 5. If its' mass number is 5 that means that there are 5 protons in the nucleas. 11 (atomic number) - 5 (# protons) = the number of nuetrons.

Answer:

6

Explanation:

Answer:

19 electrons

Explanation:

Answer:

one more time

Explanation:

shpuld i go

Answer:

Alienus

Explanation:

Answer:

I think it's C

Explanation:

Sorry if its wrong

Answer:

C

Explanation:

Answer:

Explanation:

Chemical reactions involve combining different substances. The chemical reaction produces a new substance with new and different physical and chemical properties. Matter is never destroyed or created in chemical reactions. The particles of one substance are rearranged to form a new substance.

Answer:

The chemical reaction produces a new substance with new and different physical and chemical properties. Matter is never destroyed or created in chemical reactions. The particles of one substance are rearranged to form a new substance. The same number of particles that exist before the reaction exist after the reaction.

Explanation: hope this helps

Answer:

Explanation:

The mass of the bicycle can be found by using the formula

[tex]m = \frac{p}{v} \\ [/tex]

p is the momentum

v is the velocity

From the question we have

[tex]m = \frac{25}{2.5} \\ [/tex]

We have the final answer as

Hope this helps you