Answer:
Explanation:
Neutralization is a chemical reaction in which acid and base combine to form salt and water. Acids donate and bases donate in water which combine to form water molecules.
The chemical reaction between calcium carbonate and hydrochloric acid forms calcium chloride , water and carbon dioxide.
The balanced chemical equation is:
Answer:
The answer to your question is: c
Explanation:
A descomposition reaction is a chemical reaction in which the only one reactant yields two or more products.
a) HCl + NaHCO3 → H2O + CO2 + NaCl
This is not a descomposition reaction because there are two reactants not one, this option is incorrect.
b) 2Na + Cl2 → 2NaCl
THis option is also incorrect because there are two reactants in descompositin reaction there is only one reactant.
c) 2HgO → 2Hg + O2
There are only one reactant that yields 2 products, this is a descomposition reaction.
d) AgNO3 + NaCl → AgCl + NaNO3
THis is not a descomposition reaction because there are two reactants.
Answer:
P(total) = 978 mmHg
Explanation:
Given data:
Total pressure of gas = ?
Partial pressure of O₂ gas = 200 mmHg
Partial pressure of N₂ gas = 350 mmHg
Partial pressure of He gas = 428 mmHg
Solution:
According to Dalton law of partial pressure,
The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.
Mathematical expression:
P(total) = P₁ + P₂ + P₃+ ............+Pₙ
P(total) = P(O₂) + P(N₂) + P(He)
P(total) = 200 mmHg + 350 mmHg + 428 mmHg
P(total) = 978 mmHg
There are 4 states of matter
1.solid
2.liquid
3.gas
4.plasma
The volume of pure sulfur would be 62.8