The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes are therefore subject to the principle of conservation of energy. This means that heat energy cannot be created or destroyed.
<span>The process that changes the identity and number of protons in a nucleus is fusion, transmutation, and fission.</span>
Answer:
The answer to your question is letter c) Sugar burns in air to form water and carbon dioxide.
Explanation:
Exist two kinds of phenomena: physical and chemical
physical phenomena are when matter only changes its physical state, like evaporation, condensation, sublimation, etc.
chemical phenomena are when matter changes, react and form a new compound.
a) Iodine (a purple solid) becomes a purple gas. This is a physical change, sublimation, this answer is wrong.
b) Titanium is less dense than iron. Density is a physical property of matter, this answer is incorrect.
c) Sugar burns in air to form water and carbon dioxide. Sugar in transform into water and carbon dioxide, this is the right answer.
d) Water boils at 100 ∘C. Evaporation is a physical change, the answer is wrong.
Answer:
dissolved in the solute
Explanation:
A solvent is the component that dissolves the solute and is present in larger amount. The type of solution is determined by the state of the solute and solvent. If you have NaCl, a solid, dissolved in water, a liquid, the type of solution is a solid/liquid solution.
