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LekaFEV [45]
3 years ago
8

How did Dalton describe the relationship between atoms and elements? An element is made up of one kind of atom. Atoms are made u

p of combinations of elements. Elements are made up of atoms arranged in whole-number ratios. Different kinds of atoms chemically combine to form elements.
Chemistry
2 answers:
victus00 [196]3 years ago
5 0

Answer: An element os made up of one kind of atom.

Explanation: Dalton's concept states that all atoms of an element is identical.

Sliva [168]3 years ago
4 0

Answer:

An element is made up of one kind of atom.

Explanation:

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Assuming that sea water is a 3.5 wt % solution of NaCl in water, calculate its osmotic pressure at 20°C. The density of a 3.5% N
olga nikolaevna [1]

Answer:

π = 14.824 atm

Explanation:

wt % = ( w NaCL / w sea water ) * 100 = 3.5 %

assuming w sea water = 100 g = 0.1 Kg

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∴ T = 20 °C  + 273 = 293 K

∴ C ≡ mol/L

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⇒ volume sea water = 0.1 Kg * ( L / 1.03 Kg ) = 0.097 L sln

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7 0
3 years ago
How much force is needed to accelerate a 66 kg skier at 2 m/sec2
alexgriva [62]

Answer:

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The formula for force is F=ma. Because weight is a measure of force, then we can substitute the weight of the meteor, 3204 N, for F in the the equation for force. We also know that the acceleration of gravity on Earth is 9.8 m/s^2. To find the mass, simply divide both sides of the equation by the value of acceleration to get
m =   \frac{f}{a}  =  \frac{3204}{9.8}  = 326.9
Therefore, the value of the mass of the meteor is 326.9 kg.
8 0
3 years ago
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