Answer:
Ether and acetone are the liquids with the lowest viscosities at room temperature.
Explanation:
243.92J
Explanation:
Given parameters:
Mass of the aluminum cup = 42.14g
Initial temperature of the cup, t₁ = 20°C
Final temperature of the cup t₂ = 26.41°C
Specific heat capacity of aluminium = 0.903 J g⁻¹ °C⁻¹
Unknown:
Change in heat of the aluminium cup, q = ?
Solution:
The heat lost during the experiment is the heat gained by the aluminum cup.
The quantity of heat is found using the expression below:
q = m C Δt
m is the mass of the cup
C is the specific heat of the cup
Δt is the change in heat
q = 42.14 x 0.903 x (26.41 - 20) = 42.14 x 0.903 x 6.41
q = 243.92J
Learn more:
Specific heat capacity brainly.com/question/7210400
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Answer:
An electron in a hydrogen atom moves from level 3 to level 1. In a second hydrogen atom, an electron drops from level 2 to level 1. Which statement describes the most likely result? The first atom emits light with more energy.
Answer:
The answer is C. Inversely, when this atom gains a positively charged ion. (The atom) becomes a negatively charged atom or an "anion".
Explanation:
Since electrons are negatively charged, an atom that loses one or more electrons will become positively charged, an atom that gains one or more electrons becomes negatively charged. The oppositely charged ions attract each other to form ionic networks (or lattices)
<span>A weak electrolyte exists predominantly as molecules in solution. Electrolytes are substances that have the ability to turn into ions when placed in water. The resulting aqueous solution then has the ability to conduct electricity due to the presence of ions. Strong electrolytes are those that readily breakdown into ions while weak electrolytes only partially dissolve into ions and thus mostly exists as molecules. </span>
