Answer: option A) True
Explanation:
Joseph Proust is the founder of the Law of Definite proportion. This law states that two elements will always combine together to form a chemical compound and this will be in the same proportion by mass.
For Example: 2 moles of Hydrogen (H2) ALWAYS combine with 1 atom of Oxygen (O) to yield water (H2O)
So, the answer is True
<h2>Answer:</h2>
2 hydrogen atoms.
<h2>Explanations:</h2>
Given the chemical formula H2SO4,
The compound shows that the formula has 4 atoms of oxygen, one atom of sulfur and 2 hydrogen atoms.
Therefore, the number of hydrogen atom in the molecule H2SO4 is 2 hydrogen atoms.
Answer:
A
Explanation:
Chickens are birds and they lay hard shelled eggs
Penguins are birds and lay hard shelled eggs
Josh was sure that the reaction occurred because of the formation of carbon dioxide (CO₂) which is a gas.
Explanation:
Vinegar contains acetic acid (CH₃-COOH) and baking soda is sodium hydrogen carbonate (NaHCO₃). The reaction between these two compounds will produce sodium acetate (CH₃-COONa), carbon dioxide (CO₂) and water (H₂O).
CH₃-COOH + NaHCO₃ → CH₃-COONa + CO₂ + H₂O
Josh was sure that the reaction occurred because of the formation of carbon dioxide (CO₂) which is a gas.
Learn more about:
carbon dioxide
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The <span>possible set of quantum numbers for an electron n, l, m subscript l, m subscript s is D. 3, -2, 1, -one over two.</span>
