The nature of matter/atomic structre

Questão	Responda
When an acid react with a base a ____ is formed	acid
pH of 7 is	neutral
pH higher than 7 are	basic
pH lower than 7 are	acidic
pH is a measure of the	amount of hydrogen ions
A base is a substance that releases ____ ions	(OH-) hydroxide
Acids contain ___ ions	(H+) Hydrogen
Matter can be classified as	elements,compounds, and mixtures
Matter can exist as .....	a solid, liquid, plasma, or glass
Matter is made up of small particles called...	atoms
True or False : Temperature affects the speed of particles	true
Matter is anything that has ___ and occupies _____	mass,space
Changes litmus paper red, sour taste,conduct electricity are properties of acids	acids
change litmus paper blue,bitter taste, slipperey feeling is properties of	base
shape,density,odor,melting point are all examples of _____ properties	physical
acidity,reactivity,combustility are all examples of ____ properties	chemical
The ___ is the basic building block of matter	atom
The atom consists of subatomic particles like	protons,neutrons,electron,quark
Size at the atomic level is measured at the	nanoscale
Electron cloud model was created by	Schrodegneir

Resumo de Recurso

	Criado por Jada Clemons-Smith quase 6 anos atrás