2 years ago

ABOUT IT

Chemistry

1 answer:

MaRussiya [10]2 years ago

5 0

Answer:

Molecules in the hot water bottle are

moving faster than molecules in the skin.

Explanation:

If the molecules in the skin were to be moving faster than the water then the water would seem to be cold.

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If you exhale 7.25×10 to the 24th power molecules of CO2. How many moles of CO3 do you exhale?

Assoli18 [71]

None since CO3 does not exist.

7 0

3 years ago

If 600.0 ml of air at 20.0 c is heated to 60.0L , what will be its volume

Deffense [45]

P1v1/t1 = p2t2/t2

p is constant
v1=600, t1 =20c=293K
v2=?, t2=60c=333K
temperature must be in Kelvin

do the math

5 0

2 years ago

2.600 * 10 ^ - 5 * 6.100 * 10 ^ - 5 Express in scientific notation

Anna [14]

Answer:

hope its help you

Explanation:

2.600 × 10^-5 × 6.100 × 10^-5 = 1.586 × 10-9

3 0

3 years ago

1. How do aquatic animals obtain oxygen?

Ilya [14]

Answer:

the second one filter for dissolved

Explanation:

3 0

2 years ago

***BRAINLIEST ASNWERRR***<br>How many grams are in 34.2 moles of Lithium (Li)?

Step2247 [10]

Mass of Li = 237.38 g

<h3>Further explanation</h3>

The mole itself is the number of particles contained in a substance amounting to 6.02.10²³

$\large {\boxed {\boxed {\bold {mol = \frac {mass} {molar \: mass}}}}$

<h3>Known</h3>

Moles of Li = 34.2

Molar mass(MW) of Li = 6.941 g/mol

then mass of Lithium (Li) :

$\tt mol=\dfrac{mass}{MW}\\\\mass=mol\times MW\\\\mass=34.2\times 6,941~g/mol\\\\mass=\boxed{\bold{237.38~g}}$

3 0

3 years ago