both
Explanation:
an ecosystem is the environment they live in which includes other living things
Energy is required to change the phase of a material, with the change in energy either it decreases or increases.
When the phase is changed, the temperature and kinetic energy does not change it stays the same but the internal energy changes.
Internal energy is the sum of chemical potential energy and kinetic energy of the molecules, and when the internal energy changes during a phase change it means average potential energy is changing.
The basic tastes of sweet, salty and sour have different thresholds, or concentration levels, at which they can be detected. In other words, it is easier to detect some flavors at low concentrations compared with other flavors. Taste thresholds can vary from person to person.
<span>NaCI (C) is a compound</span>
Explanation:
The ions are;
Al3+ Na+ Cl- (SO₄)₃²⁻
The Cations (Positive ions) are;
Al³⁺ Na⁺
The Anions (Negative ions) are;
Cl⁻ (SO₄)₃²⁻
Compounds are formed when cations are bonded to anions
NaCl - Formed by Na⁺ and Cl⁻
Al₂(SO₄)₃ - Formed by Al³⁺ and (SO₄)₃²⁻
AlCl₃ - Formed by Al³⁺ and Cl⁻
