The reaction represents the law of conservation of mass (a balanced chemical equation :
2NaN₃ → 2Na + 3N₂
<h3>Further explanation
</h3>
Conservation of mass applies to a closed system, where the masses before and after the reaction are the same, so balanced chemical equations show that mass is conserved in chemical reactions.
So we just have to look at the amount of each type of element present in the reactants and products must be the same
1. Hg + O₂ → HgO
not balanced, because element O not equal(2 in left, 1 in right)
2. 2NaN₃ → 2Na + 3N₂
balanced, because element in reactant and product are the same
Na, left = 2, right=2
N, left =2x3=6, right=3x2=6
3. C+O → CO₂
not balanced, because element O not equal(1 in left, 2 in right)
4. CH₄ + O₂ → CO₂ +H₂O
not balanced, because element O and H not equal
Answer:Ground
Explanation:The roots help soak up moisture fromthe ground and can also store extra food made from photosynthesis
Answer is: epidermis is the most superficial layer of the skin.
Epidermis is consist of epithelial cells (the outermost protective shield of the body). Functions of epidermis are:<span> barrier (physical, chemical,
i</span><span>mmunologically), </span>skin color and skin hydration.
Element 6 has the lowest ionization energy
Answer:
Temperature is not a chemical change because when a substance changes in temperature, its chemical makeup is not changing.
