Answer:
1350J
Explanation:
Heat energy = ?
Mass = 30.0g
Specific heat capacity (c) = 0.90J/g°C
Initial temperature (T1) = 25°C
Final temperature (T2) = 75°C
Heat energy (Q) = mc∇T
Q = heat energy
M = mass of the substance
C = specific heat capacity of the substance
∇T = change in temperature of the substance = T2 - T1
Q = mc∇T
Q = 30 × 0.90 × (75 - 25)
Q = 27 × 50
Q = 1350J
The heat energy required to raise the temperature of the metal from 25°C to 75°C is 1350J
Answer:
The term supernatural literally means, Science does not deal with the supernatural because within nature, not within it
Answer:
Figure 1
Explanation:
In this case, we have to ester with a <u>"malonic synthesis"</u> in which we have to add a strong (ethoxide) to produce an enolate ion that would form a new C-C bond with an alkyl halide (ethyl bromide and bromo pentane). Then a <u>"nucleophilic acyl substitution reaction"</u> takes place to add thiourea, in this step two ethanol groups are eliminated to form a cyclic structure. Finally, an "<u>elimination reaction"</u> happen by the addition of sodium hydroxide generating a double bond and a negative charge in the sulfur atom that is neutralized with the positive charge of sodium.
See figure 1 for the total mechanism
I hope it helps!