A student observed that, when 0.243 g of magnesium was added to 100.0 g of hydrochloric acid, the temperature of the solution increased 11.2 °C. Without doing any calculations, what observations can you make to support your claim that the reaction that occurred between magnesium and hydrochloric acid was exothermic?

Question
Asked Oct 28, 2019
28 views

A student observed that, when 0.243 g of magnesium was added to 100.0 g of hydrochloric acid, the temperature of the solution increased 11.2 °C. Without doing any calculations, what observations can you make to support your claim that the reaction that occurred between magnesium and hydrochloric acid was exothermic?
 
 

check_circle

Expert Answer

Step 1

Many chemical reactions give off energy. Chemical reactions that release energy are called exothermic reactions. Due to release of energy, the...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

General Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: What is the outcome of neutron decay ?

A: Proton and Neutron are present in nuclei. The neutrons present inside the nuclei are stable. The hal...

question_answer

Q: 10. A water solution of sulfuric acid has a density of 1.67 g/mL and is 75 percent HSO by mass. How ...

A: Given,Density of solution = 1.67 g/mLMass percent of sulfuric acid in the solution = 75 %Volume of s...

question_answer

Q: Calculate the standard enthalpy of reaction, Δ?∘rxn,, of each of the given acid–base neutralization ...

A: since there are more than three sub-parts, we are authorised to answer only the first three sub part...

question_answer

Q: 6. Smoke detectors contain small amounts of americium-241. Am-241 decays by emitting alpha particles...

A: Given:Berylium-9

question_answer

Q: When heated, KClO3 decomposes into KCl and O2.   2KClO3⟶2KCl+3O2 If this reaction produced 85.1 g KC...

A: The given reaction is

question_answer

Q: Draw a three-dimensional representation of the oxygen-bearing carbon atom in ethanol, CH3CH2OH, usin...

A: The three-dimensional representation of the oxygen bearing carbon atom in ethanol using the standard...

question_answer

Q: a given compund always contains the same relative masses of its constituent elements. how is this re...

A: A pure substance or compound is composed of two or more type of matter in definite proportion. For e...

question_answer

Q: Calculate the volume in milliliters of a 1.2/molL iron(II) bromide solution that contains 75.0g of i...

A: Given1.2 mol of FeBr2 is contained in 1 litre of solution75.0 gram of FeBr2 is given

question_answer

Q: Rep Two stereoisomers of 1-bromo-4-methylcyclohexane are formed when trans 4-methylcyclohexanol reac...

A: Reaction of trans-4-methylcyclohexanol with HBr