Answer:
One of water's most significant properties is that it takes a lot of heat to it to make it get hot. Precisely, water has to absorb 4,184 Joules of heat (1 calorie) for the temperature of one kilogram of water to increase 1°C.
Explanation:
W = force x distance
50 N x 20 m = 1,000 joules
For the first answer.
Answer:
elastic potential gravitational potential chemical potential
Explanation:
i really hoped this helped
Answer:
Number of moles = 0.35 mol
Explanation:
Given data:
Mass of H₂SO₄ = 34.6 g
Number of moles = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of H₂SO₄ = 98.1 g/mol
by putting values,
Number of moles = 34.6 g/ 98.1 g/mol
Number of moles = 0.35 mol
Answer:
Potassium cation = K⁺²
Explanation:
The metal cation in K₂SO₄ is K⁺². While the anion is SO₄²⁻.
All the metals have tendency to lose the electrons and form cation. In given compound the metal is potassium so it should form the cation. The overall compound is neutral.
The charge on sulfate is -2. While the oxidation state of potassium is +1. So in order to make compound overall neutral there should be two potassium cation so that potassium becomes +2 and cancel the -2 charge on sulfate and make the charge on compound zero.
2K⁺² , SO₄²⁻
K₂SO₄
