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Ket [755]
3 years ago
12

Which best describes a compound such as sodium chloride?

Chemistry
2 answers:
denpristay [2]3 years ago
5 0
The answer is a pure substance that can be separated into different elements by chemical means
My name is Ann [436]3 years ago
4 0

Answer:

i think it is the last option a pure substance that can be separated into different elements by chemical means

Explanation:

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Is cotton yarn a natural resource?
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8 0
3 years ago
How many moles of a gas would occupy 11.4 L at 273K and 2.00 atm?
bagirrra123 [75]

Answer:

1.02mol

Explanation:

Using the general gas equation below;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information provided in this question,

P = 2.0 atm

V = 11.4L

T = 273K

n = ?

Using PV = nRT

n = PV/RT

n = 2 × 11.4/ 0.0821 × 273

n = 22.8/22.41

n = 1.017

n = 1.02mol

3 0
3 years ago
How many grams are in 4.5 x 10^22 molecules of water
Luden [163]

Answer:

1.35 g

Explanation:

water is h2o, so the molar mass is 1.01x2+16.00=18.02. divide 4.5 x 10^22 by 6.022 x 10^23 to get 7.5 x 10^-2 (2 sig figs). 18.02 x 7.5 x 10^-2 is 1.35 g

8 0
3 years ago
How many moles of nacl are required to make 500. 0 ml of a 0. 1 m solution of nacl?.
Illusion [34]

Answer:

Therefore 500 ml of solution have 0.25 mol of NaCl .. = 14.61 g (ans.)

Explanation:

7 0
2 years ago
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