2 years ago

What role does intermolecular forces play in the state something is in?

1 answer:

8 0

Inter molecular forces can affect the state of something depending on their strength. Solids have strong inter molecular forces which keep particles still and packed close together, whereas gases for example have weaker forces that allow particles to be free from one another and disperse throughout a space. Liquids are somewhat in the middle.

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1. What mass of Mgo will I make from 48 g of Mg?<br> 2Mg + O2 + 2MgO

statuscvo [17]

Answer:

80.6 g

Explanation:

MgO=24.3+16=40.3 g

48.6/24.3= 2 moles

64/2x16= 2 moles

2x40.3= 80.6g

8 0

2 years ago

Which of these elements exist as a liquid at normal Earth temperatures? Select all that apply. bromine sodium oxygen mercury

Anni [7]

Mercury exist as liquid at normal earth tempertures

4 0

2 years ago

Read 2 more answers

What is the mass of 4.57 x 1021 molecules of ammonia (NH3)?

Alex17521 [72]

Answer:

4665.97

Explanation:

5 0

2 years ago

What is the mole fraction of ethanol in a solution of 3.00 moles of ethanol and 5.00 moles of water?

Rus_ich [418]

If theres a mixture of components we can calculate the mole fraction
mole fraction can be calculated as follows
mole fraction of component = $\frac{number of moles of component}{total number of moles of all components }$
number of moles of ethanol - 3.00 mol
total number of moles in mixture - 3.00 + 5.00 = 8.00 mol

mole fraction of ethanol = $\frac{3.00 mol}{8.00 mol }$
mole fraction of ethanol is 0.375

6 0

3 years ago

A toy balloon filled with air has an internal pressure of 1.25 atm and avolume of 2.50 L. If I take the balloon to the bottom of

worty [1.4K]

Ideal Gas Law
Given: P1= 1.25 atm P2= 95 atm
V1= 2.50 L

Unknown: V2=?

Formula: V=nRT/P; n = RT / PV

Solution: n = (0.0821 L x atm / K x mol) (285K) / (1.25 atm) ( 2.50L)

= 23.40 / 3.125

Answer: n = 7.49 moles of gas the balloon holds

4 0

2 years ago