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2 years ago

Why isn’t there anyone helping for chemistry I need this by literally tomorrow morning before 8:30 ;-;

Chemistry

2 answers:

Anon25 [30]2 years ago

6 0

Refer to the attachment

Naily [24]2 years ago

4 0

Answer:

Find it in the teacher desk by tomorrow 7:30

Explanation:

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PLS HELPPPP NOWWWW!!!!

dedylja [7]

When in doubt pick C I don’t really know the answer but I just pick C

8 0

2 years ago

Compared to other stars we observe, the Sun appears bigger and brighter because:

Kipish [7]

Answer:

Compared to other stars we observe, the Sun appears bigger and brighter because it is much closer to earth.

Objects closer to earth appear to be much bigger and brighter.

Let me know if this helps!

3 0

2 years ago

Read 2 more answers

Arterial blood contains about 0.25 g of oxygen per liter at 37°C and standard atmospheric pressure. Under these conditions, the

Olin [163]

Firstly we need to determine the partial pressure of O2:

$\begin{gathered} P_{O_2}=X\times P_T \\ P_{O_2}:partial\text{ }pressure \\ X:mole\text{ }fraction \\ P_T:total\text{ }pressure \\ \\ P_{O_2}=0.209\times0.35\text{ }atm \\ P_{O_2}=0.073\text{ }atm \end{gathered}$

We will now use the Henry's Law equation to determine the solubility of the gas:

$\begin{gathered} c=K_H\times P_{O_2} \\ c:solubility\text{ }or\text{ }concentration\text{ }of\text{ }the\text{ }gas(M) \\ K_H:Henry^{\prime}sLawconstant=3.7\times10^{-2}M\text{ }atm^{-1} \\ P_{O_2}:partial\text{ }pressure\text{ }of\text{ }the\text{ }gas=0.073atm \\ \\ c=3.7\times10^{-2}M\text{ }atm^{-1}\times0.073 \\ c=2.7\times10^{-3}M \end{gathered}$

Answer: Solubility is 2.7x10^-3 M

6 0

7 months ago

A measure of the kinetic energy of particle motion within a substance is temperature.

Alchen [17]

True. You're welcome!

3 0

3 years ago

PLEASE HELP! MAJOR TEST GRADE! :(

Goshia [24]

Answer:

Explanation:

7 0

3 years ago