It describes how, when particles/mc/elements react, despite forming different substances the mass is neither created nor destroyed but only converted.
B
Explanation:
Burning is a chemical change and cutting grass is a physical change
<span>Ionic compounds are normally in which physical state at room temperature in solid. The answer is A.
</span>Ionic Compounds Are Balanced. Table salt is an example of an ionic compound. Sodium<span> and </span>chlorine<span>ions come together to form </span>sodium chloride<span>, or </span>NaCl<span>. The </span>sodium atom<span> in this compound loses an electron to become Na+, while the </span>chlorine<span> atom gains an electron to become Cl-.</span>
Answer:
11 electrons total and 23amu
Explanation:
This tells us that sodium has 11 protons and because it is neutral it has 11 electrons. The mass number of an element tells us the number of protons AND neutrons in an atom (the two particles that have a measurable mass). Sodium has a mass number of 23amu.