True. Modern theory of Atom is still using the proposed ideas of Dalton, Thomson and Rutherford.
Explanation:
- Dalton created his atom theory - He said that all matter is made up of atoms and atoms can’t be created nor destroyed or divided into tiny particles. In the same element, all atoms will be identical in size and mass but atoms in the one element will be different in size and mass from the atoms in the other elements. Atoms of different elements combined and forming compounds.
- Thomson found that inferred atoms and negative electrons also contains the negative particles. He also concluded that there was a mass of positively charged material. He explained this with the Raisins Bun model.
- Using Gold Foil Experiment Rutherford found the positively charged nucleus in the centre of every atom. When he was doing this experiment, the positive particles which he passed through the foil got reflected at the centre. This led Rutherford to conclude about the positively charged nucleus at the centre. And he also found about revolving electrons around the nucleus because, in his experiment, some of the positive particles got attracted near the centre.
Answer:
P₂ = 1.0 atm
Explanation:
Boyles Law problem => P ∝ 1/V at constant temperature (T).
Empirical equation
P ∝ 1/V => P = k(1/V) => k = P·V => for comparing two different case conditions, k₁ = k₂ => P₁V₁ = P₂V₂
Given
P₁ = 1.6 atm
V₁ = 312 ml
P₂ = ?
V₂ = 500 ml
P₁V₁ = P₂V₂ => P₂ = P₁V₁/V₂ =1.6 atm x 312 ml / 500ml = 1.0 atm
Formerly made of bronze or wrought iron, today's nails are typically made of steel, often dipped or coated to prevent corrosion in harsh conditions or to improve adhesion.
<span>Molecular reaction
2HBr(aq) Ba(OH)2 (aq) = 2H2O (l) BaBr2(aq)
Ionic equation
2H 2Br- Ba 2 2OH- --------> Ba 2 2Br - 2H2O
Net ionic equation
2H (aq) 2OH- (aq)- ---------> 2H2O (l)</span>
Answer:
The titrant is a strong acid while the analyte is a strong base
Explanation:
A titration curve is a graphical representation of the pH of a solution during a titration. The figure in the question shows a particular example of a strong acid-strong base titration curve. This is a titration in which the acid is added to the base thus the pH progresses from low to high.
Hence, the titrant is the strong acid delivered from the burette while the analyte is the base as shown by the titration curve in which acid is delivered to the base.
