To determine strength of attractive forces between the molecules the size of the molecules, their polarity (dipole moment), and their shape. ... If two molecules have about the same size and similar shape, the dipole-dipole intermolecular attractive force increases with increasing polarity.

4. sinks ) The opposite of the air rising towards the sun.

Because there are 4 P on the right side, we have to put a coefficient of 4 on the left to balance out the P.

This would give us 12 H on the left and 2 H on the right, so we have to put a 6 on the right to balance out the H.

Now we have 16 O on the left and 2 on the right, so a coefficient of 8 is required to balance out the O.

**Answer:**

The specific heat of the metal is 0.451 J/g°C (This could be iron).

**Explanation:**

<u>Step 1:</u> Data given

Mass of the unknown metal = 217 grams

The metal absorbs 1.43 kJ of heat

The temperature increases from 24.5°C to 39.1 °C

<u>Step 2:</u> Calculate the specific heat of the metal

q = m*c*ΔT

⇒ q = the heat transfer = 1.43 kJ

⇒ m = the mass of the unknown metal = 217 grams

⇒ c = the specific heat of the metal = TO BE DETERMINED

⇒ ΔT = the change of temperature = T2 - T1 = 39.1 - 24.5 = 14.6 °C

q = 1430 J = 217g * C * 14.6 °C

C = 0.451 J/ g°C

The specific heat of the metal is 0.451 J/g°C (This could be iron).