HELP ASAP Part 1: Name the type of chemical reaction that occurs when calcium hydroxide (Ca(OH)2) reacts with nitric acid (HNO3).

Part 2: Explain why zinc (Zn) would react with lead nitrate (PbNO3) but not with calcium chloride (CaCl2).

1) neutralization reaction

2) Zn is above lead but less than calcium in the electrochemical series

Explanation:

A neutralization reaction is a type of reaction that occurs between an acid and a base to yield salt and water only. Calcium hydroxide is a base and HNO3 is an acid, so the both of them must undergo a neutralization reaction as follows; 2HNO3(aq) + Ca(OH)2(aq) > Ca(NO3)2(aq) + 2H2O(l)

If we look at the electrochemical series, we will realize that zinc is below calcium but above lead in the series. Metals can displace other metals that are lower than them in the series from their aqueous solutions. However, no metal can displace any metal that is above it in the series from aqueous solution. Hence zinc may displace lead but not calcium from their respective aqueous solutions.

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j