Answer:
Explanation:
Since we are given the mass, specific heat, and change in temperature, we should use this formula for heat:
The substance's mass is 450.0 grams, the specific heat is 1.264 J/g°C, and the change in temperature is 7.1 °C.
Substitute the values into the formula.
Multiply the first 2 values together. The grams will cancel out.
Multiply again. This time, the degrees Celsius cancel out.
<u>4038.48 Joules</u> of heat energy are released.
Answer:
1. NaOH + H₂O → Na⁺ + OH⁻ + H₂O + heat
2. NaOH + HCl → NaCl + H₂O
Explanation:
1. The dissolving of NaOH in water is an exothermic reaction resulting a heat. It also causes the dissociation of NaOH to its ions (Na⁺ and OH⁻).
So, the balanced equation will be NaOH + H₂O → Na⁺ + OH⁻ + H₂O + heat.
2. The reaction between acid and base resulting salt and water. It is considered as a neutralization reaction.
The reaction between HCl and NaOH will give sodium chloride and water and the balanced equation will be NaOH + HCl → NaCl + H₂O.
<span>I got 7.5g aswell, and it was right aswell.</span>
The question is asking to state the term that is often mistakenly regarded as being base on science and base on my research and further analysis, I would say that the answer would be a Pseudoscience. I hope you are satisfied with my answer and feel free to ask for more if you have question
