The nucleus of an atom is made up of protons and neutrons. Then electrons circle around the nucleus.
Answer:
Proton, Neutron, Electron
Answer:
The balanced chemical equation will be "
".
Explanation:
The given equation is:
<u>Step 1:</u>
<u></u>
...(equation 1)
<u>Step 2:</u>
<u></u>...(equation 2)
On adding "equation 1" and "equation 2", we get
⇒ 
⇒
The second step:
⇒
Answer: This is called moles
Explanation: This is described to be the number of molecules, atoms or ions in a substance :)
Answer: conversion of ice to steam
Explanation: Endothermic process is one in which energy is absorbed by the system.
Conversion of ice to steam is change of solid phase to gaseous phase, thus energy is required to break the strong inter molecular forces of attraction in solids to convert it into gaseous phase.
Conversion of steam to ice, conversion of steam to water and conversion of water to ice releases energy and are examples of exothermic processes.
Answer:
A) measuring mass of metal used in a reaction
Explanation:
Quantitive observations is data involving statistics and numerical values.
