Krypton: Non-metal, inert gas
Zirconium:Metal, Transittion metal
Magnesium: Metal, Alkaline Earth metal
Chlorine: non-metal, halogen
Arsenic: semi-metal a.k.a metaloid
Helium: non-metal, inert gas
Oxygen: non metal
Copper: metal, transition metal
Silicon: non metal, metaloid
Aluminium: Metal, post-transition metal
Hope that helps.
C. cells is your answer.
Cells are the most basic building blocks, in which a group of cells create a <em>tissue</em>, and a group of tissue creates an <em>organ</em>.
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The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed. Hence, the quantity of mass is "conserved" over time.
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Answer:</h3>
B Aqueous
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Explanation:</h3>
We are given the equation;
KBr (aq) + AgNO₃ (aq) → KNO₃ (aq) + AgBr (s)
- The equation shows a precipitation reaction or a double displacement reaction.
- Precipitation reaction because two soluble salts reacts to produce a precipitate as one of the product.
- Double displacement reaction because the salts exchange cations and anions to form new compounds
- In the equation;
- KBr is in aqueous state since all salts of potassium (K) are soluble in water.
- KNO₃ and AgNO₃ are also in aqueous state as all nitrates are soluble in water.
- AgBr on the other hand is in solid state since its a precipitate that is insoluble in water.