Br is a non-metal. The other answers like Os, Ir, W are not combinations while Sr is a metal. So Br is your answer.
The best and most correct answer among the choices provided by your question is the first choice or letter A.
<span>A solute will continue to dissolve in a solvent until an equilibrium is reached.</span>
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Answer:
The answer to your question is below
Explanation:
Polyatomic ions are ions composed for more than 1 atom. There are polyanions and polycations.
Polyanions have a negative charge and polycations have a positive charge.
Examples
Polyanions Polycations
acetate CH₃COO⁻ ammonium NH₄⁺¹
bromate BrO₃⁻
chlorate ClO₃⁻
hydroxide OH⁻
nitrate NO₃⁻
nitrite NO₂⁻
sulfate SO₄⁻²
phosphate PO₄⁻³
permanganate MnO₄⁻
We write parentheses before or after a polyatomic ion to emphasize that the oxidation number of the atom which interacts with it affects all the atoms that form part of the polyatomic ion.
The answer is C. <span>The density of the fluid is greater than the density of the object.</span>
Answer:
Volume of acetone = 257.4 mL
Explanation:
Density = mass / volume
Density Hg = Mass Hg / Volume Hg
13.59 g/mL = Mass Hg / 15 mL Hg
13.59 g/mL . 15 mL = Mass Hg → 203.85 g
This is the mass of acetone
Density acetone = Mass acetone / Volume acetone
0.792 g/mL = 203.85 g / Volume of acetone
Volume of acetone = 203.85 g / 0.792 g/mL
Volume of acetone = 257.4 mL