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4 years ago

In general, which type of compound tends to have the lowest melting point?

Physics

2 answers:

Liono4ka [1.6K]4 years ago

5 0

A. Molecular solids tend to have lower melting points than Ionic so it would be Ionic if it weren't for Molecular.

Rom4ik [11]4 years ago

3 0

Answer:

A. Molecular solids

Explanation:

Bonds between two or more molecules is the force of attraction between the molecules. If the force of attraction is strong between the molecules then the matter must be solid.

If the force of attraction is very weak then in that case the material is liquid and for more weak force we can say that the material is gas.

So here melting point depends on the force of attraction in which if the force is more then the melting point must be high. So here for lowest melting point we need to find a material in which the force of attraction is weak.

So out of all given option the weak attraction force is only in

A. Molecular solids

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Explanation:

Given:

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3 years ago

Three arrows are shot horizontally. They have left the bow and are traveling parallel to the ground. Air resistance is negligibl

timurjin [86]

Answer:

F₁ = F₂ = F₃ = 0 N

Explanation:

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We know,

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F = m a

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3 years ago

A 25.0 kg object is held 8.50 m above the ground. Calculate its PE

pantera1 [17]

Answer:=mgh

Explanation:

6 0

3 years ago

3. A certain horizontal east-west lined wire has a mass of 0.2kg per meter of length and carries a current I. Impressed on the w

erica [24]

Answer:

i = 4.9 A

Explanation:

The expression for the magnetic force in a wire carrying a current is

F = i L x B

bold letters indicate vectors.

The direction of the cable is towards the East, the direction of the magnetic field is towards the North, so the vector product is in the vertical direction (z-axis) upwards and the weight of the cable is vertical downwards. Let's apply the equilibrium condition

F - W = 0

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3 years ago

A glass falls from a table top and smashes on the floor 0.6 seconds later. How high is the table?

soldi70 [24.7K]

Answer:

1.8 m

Explanation:

Given: Glass falls from a table, smashes 0.6 seconds later

To find: How high a table is

Formula: Vv=gt, dv=1/2gt^2, t=2d/g

Solution: A table's height is measured from the top of the edge down to the floor. The tables are shown both have a height of 30 inches, which is common for many tables.

Data

t = 0.6s

g = 9.81 m/s²

d = ?

Equation

d = $\frac{1}{2}$ $gt$ ²

Math & Units

d = 4.905 (0.6²)
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Hence the table is 1.8 m high

5 0

3 years ago