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dolphi86 [110]
3 years ago
10

Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element’s properties to be

predicted based on general periodic trends. One of these trends, atomic radius, increases downs group and to the left along a period and can be defined as
Chemistry
2 answers:
mrs_skeptik [129]3 years ago
8 0

Answer:

a

Explanation:

i did the usa test prep

tresset_1 [31]3 years ago
8 0

Answer:

attract a core pair of electrons toward itself.

Explanation:

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D. 0.36 g

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When a gas is collected over water, the total pressure is the sum of the pressure of the gas and the pressure of the water vapor.

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PN₂ = Ptotal - Pwater = 730 torr - 23.76 torr = 706 torr

We can find the mass of N₂ using the ideal gas equation.

P.V=n.R.T=\frac{m}{M} .R.T\\m=\frac{P.V.M}{R.T} =\frac{730torr.0.340L.28g/mol}{(0.08206atm.L/mol.K).298K} .\frac{1atm}{760torr} =0.36g

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