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3 years ago

Define the term homeostasis

Chemistry

1 answer:

8_murik_8 [283]3 years ago

7 0

Answer:

The ability and tendency of certain systems to maintain a relatively constant internal state in spite of changes in external conditions; this ability is achieved by the presence of feedback mechanisms which can adjust the state of the system to compensate for changes in the state caused by the external environment. It is exemplified in homeothermal biological systems, such as animals which maintain relatively constant blood temperature and composition in spite of variations in external temperature or the composition of the food ingested.

Explanation:

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13. As heat is added to a lúguid that is boiling at constant

11Alexandr11 [23.1K]

Tbh I would pick A because the liquid* decreases. B doesn’t increase

6 0

3 years ago

The reactants of two chemical equations are listed. Equation 1: PbNO3 + Mg Equation 2: PbNO3 + KI Based on the type of reaction,

Vika [28.1K]

Answer:

Equation 2, because K being more reactive, exchanges position with Pb in PbNO3.

Explanation:

Hello there!

In this case, according to the given reactions, it is possible to realize that according to the reactivity series, since K is is group 1A of alkali metals, we infer it is by far more reactive than magnesium, for that reason last two choices can be easily discarded. Now, considering equation 2, it would be necessary to complete it to figure out the correct option:

$Pb(NO_3)_2 + KI \rightarrow PbI_2+KNO_3$

Whereas it can be seen that potassium exchanges position with Pb according to the double displacement reaction; therefore, the correct answer is "Equation 2, because K being more reactive, exchanges position with Pb in PbNO3".

Best regards!

8 0

3 years ago

if a gas is held in 3.60 L, 298 K AND 800. mmHg, what is the new pressure of the gas if the volume us decreased by half and the

sleet_krkn [62]

Answer:

Explanation:

By Ideal Gas Law, P1*V1 / T1 = P2*V2 / T2

So new pressure = (P1*V1 / T1) / (V2 / T2)

= P1*V1*T2 / T1*V2

= 800*3.6*298 / 250*1.8

= 1907.2 mmHg

6 0

2 years ago

Read 2 more answers

Balance this eqaution:<br>

klasskru [66]

Answer:

H₂ + CuO → Cu + H₂O

Explanation:

We want to balance the given equation;

H₂ + CuO → Cu(OH)₂ + H₂O

To balance this we have to make sure the number of each element on the left is equal to the number of each element on the right.

Thus, the correct balanced equation is;

H₂ + CuO → Cu + H₂O

5 0

2 years ago

CARBON MOVES THROUGH THE CARBON CYCLE IN ALL OF THE PROCESSES EXCEPT?

Crazy boy [7]

The answer is Decomposition.

3 0

3 years ago

Read 2 more answers