Selenium (Se) the most common isotope of this element. The nucleus consists of 34 protons (red) and 46 neutrons (blue).
Answer:
=2023.04 grams
Explanation:
Magnetite reacts with hydrogen to produce Iron metal and steam. Steam instead of water is produced as the reaction occurs at temperatures above the boiling point of water.
Fe₃O₄ + 4 H₂ → 3 Fe +4 H₂O
From the equation, 1 mole of Fe₃O₄ reacts with 4 moles of H₂.
69.76 grams of H₂ has the following number of moles.
Number of moles= mass/RAM
=69.76/2
=34.88 moles.
The reaction ratio of Fe₃O₄ to H₂ is 1:4
Thus number of moles of magnetite= (1×34.88)/4
=8.72 moles.
Mass= moles × RAM
=8.72 moles × (56×3+16×4)
=2023.04 grams
Answer:
plasma flows but is a solid
Explanation:
example toothpaste flows but is a solid
Answer:
NaNO₃
KNO₃
Ca(NO₃)₂
Explanation:
The possible cations for the salt. = Na⁺ , K⁺ , Ca²⁺
The anion for which the formula has to written = NO₃⁻
The salt is of white color.
The possible salts may be:
<u>NaNO₃ </u>
<u>KNO₃</u>
<u>Ca(NO₃)₂</u>
Missy Mae can have one of these salts.
The color of NaNO₃ is from transparent to white.
The color of KNO₃ is white.
The color of NaNO₃ is from white to light grey.
Answer TRUE
Newton's first law of motion states that "An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force."