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Gre4nikov [31]
3 years ago
6

Which brain area is involved in her emotional response

Chemistry
1 answer:
iogann1982 [59]3 years ago
5 0
Limbic system or thalamus
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1. what is volume?
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Metallic bonds are found between two?
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8 0
4 years ago
The total mass of the atmosphere is about 5.00 x 1018 kg. How many moles each of air, O2, and CO2 are present in the atmosphere?
n200080 [17]

<u>Answer:</u> The moles of oxygen and carbon dioxide in air is 3.63\times 10^{19}mol and 7.18\times 10^{16}mol respectively

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Given mass of atmosphere = 5.00\times 10^{18}kg=5.00\times 10^{21}g

Average molar mass of atmosphere = 28.96 g/mol

Putting values in above equation, we get:

\text{Moles of atmosphere}=\frac{5.00\times 10^{21}g}{28.96g/mol}=1.73\times 10^{20}mol

We know that:

Percent of oxygen in air = 21 %

Percent of carbon dioxide in air = 0.0415 %

Moles of oxygen in air = \frac{21}{100}\times 1.73\times 10^{20}=3.63\times 10^{19}mol

Moles of carbon dioxide in air = \frac{0.0415}{100}\times 1.73\times 10^{20}=7.18\times 10^{16}mol

Hence, the moles of oxygen and carbon dioxide in air is 3.63\times 10^{19}mol and 7.18\times 10^{16}mol respectively

6 0
3 years ago
a flack that weighs 345.8g is filled with 225 ml of carbon terachloride the weight of the flack and carbon terachloride is found
Jlenok [28]

The density of the carbon tetrachloride is 1.59 g/mL.

Mass of CCl₄ = 703.55 g – 345.8 g = 357.75 g

Density = mass/volume = 357.75 g/225 mL = 1.59 g/mL

7 0
3 years ago
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