Answer:
Carson models how the continental crust varies in thickness. Marisol records atmospheric and oceanic temperatures at several beaches. Eliza analyzes seismic wave activity from an earthquake using a computer model.
Answer is: the molarity of the solution is 0.0936 M.
Balanced chemical reaction: BaCl₂(aq) + Na₂SO₄(aq) → BaSO₄(s) + 2NaCl(aq).
Net ionic reaction: Ba²⁺ + SO₄²⁻ → BaSO₄(s).
V(BaCl₂) = 55.8 mL; volume of barium chloride solution.
V(BaCl₂) = 55.8 mL ÷ 1000 mL/L = 0.0558 L.
m(Na₂SO₄) = 742 mg ÷ 1000 mg/g.
m(Na₂SO₄) = 0.742 g; mass of sodium sulfate.
n(Na₂SO₄) = m(Na₂SO₄) ÷ M(Na₂SO₄).
n(Na₂SO₄) = 0.742 g ÷ 142.04 g/mol.
n(Na₂SO₄) = 0.00522 mol; amount of substance.
From chemical reaction: n(Na₂SO₄) : n(BaCl₂) = 1 : 1.
n(BaCl₂) = 0.00522 mol.
c(BaCl₂) = n(BaCl₂) ÷ V(BaCl₂).
c(BaCl₂) = 0.00522 mol ÷ 0.0558 L.
c(BaCl₂) = 0.0936 M.
Answer: an addition reaction is one where two molecules react together to produce one. in this case a bromine molecule reacts with ethene and one of the bromine atoms is added to ethene
Explanation:
hope this helps :)
1. Who is the father of atomic theory?
Dalton
2. Who discovered the electron?
<span>Thomson
</span>
3. Who expressed particles by wave equations?
<span>Schrödinger
</span>
4. Who researched on radioactivity?
Curie
<span>5. Who discovered the "open spaces" model?
</span><span>Rutherford
</span>
6. Who applied quantum theory to atoms?
<span>Bohr</span>
