Thermal energy is the sum of the kinetic and potential energy of all the particles in an object. The figure shows that if either potential or kinetic energy increases, thermal energy increases.
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All the energy goes into melting the ice. Ice and water are <em>at equilibrium</em> during melting, so the temperature does not change.
Once all the ice has melted to water, the temperature will rise.
0.38g
Explanation:
Given parameters:
Number of formula units = 5.74 x 10²¹
Molar mass of NaOH = 40g/mol
Unknown:
Mass of NaOH = ?
Solution:
The best way to solve this problem is the use the mole concept.
A mole is the amount of substance that contains the avogadro's number of particles.
The avogadro's number of particles is 6.02 x 10²³particles.
Particles = neutrons, protons, electrons, formula units, e.t.c
To solve this problem, find the the number of moles first then convert to mass.
6.02 x 10²³ formula units = 1 moles
5.74 x 10²¹ formula units = 
= 0.95 x 10
moles
Mass of NaOH = number of moles x molar mass = 0.0095 x 40 = 0.38g
learn more:
Molar mass brainly.com/question/2861244
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Answer:
ll matter is composed of extremely small particles called atoms.
Atoms of a given element are identical in size, mass, and other properties. Atoms of different elements differ in size, mass, and other properties.
Atoms cannot be subdivided, created, or destroyed.
Atoms of different elements can combine in simple whole number ratios to form chemical compounds.
In chemical reactions, atoms are combined, separated, or rearranged.
Each atom is uniform, homogeneous, colorless, tasteless, and indivisible.ll atoms of a given element are identical in mass and properties. Compounds are formed by a combination of two or more different kinds of atoms. A chemical reaction is a rearrangement of atom.
