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Section 1

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a water molecule is made of two hydrogen atoms and one oxygen atom

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4 years ago

Date created

Mar 1, 2020

Cards (31)

Section 1

(31 cards)

a water molecule is made of two hydrogen atoms and one oxygen atom

Front

the hydrogen atoms share an electron with the oxygen atom so all atoms have complete outer electron shells

Back

what is a property of water

Front

it desalvs in water

Back

describe the heating process

Front

when the thermometer is stuck in an ice cube and you heat it the ice cube will melt and when the water boils the thermometer will read the temperature.

Back

chlorine gas is a

Front

element

Back

metal atoms tend to

Front

loose electrons and become positively charged

Back

what do the element sodium have in common with the compound NaCl and how do they differ

Front

the are both solids and the boys contain sodium they differ because salt contains chlorine and sodium is active in water and salt is not

Back

compare solids liquids and gases

Front

solids have atoms that vibrate in fixed positions liquids have atoms that move freely within limited volume gas has atoms that move with out bandstand move independently

Back

what holds copper together

Front

the strong attraction between the charged atoms keep the metals together it is called metallic bonding

Back

the salt sodium chloride is a

Front

compound

Back

oxygen gas is a

Front

element

Back

Glucose molecules can join to form larger molecules .

Front

the difference between starch and cellulose is that every other molecule in cellulose is reserved and that makes the bonds stronger to make starch molecules they have to be organically created by living things found in plants protein potatoes corn grains fur skins leather wool paper card board linen cotton are cellulose

Back

the element iron when it reacts to oxygen and water it forms rust a reddish powder it is a

Front

mixture

Back

a sterling silver spoon is made up of silver and copper atoms the spoon is a

Front

alloy

Back

how do copper atoms in a penny stick together

Front

by loosing their electrons becoming positively charged and being attracted to the free electrons

Back

what is the difference between a element and a compound ???????

Front

elements made of one type of atom compound made of 2 or more different atoms

Back

what is the structure of a grain of salt

Front

salts are made of positive charged and negatively charged ions/atoms

Back

boiling

Front

to change from a liquid to a gas

Back

why are salts easily to break

Front

the break because the structure of the ionic bonds of means that if u apply force the reeling force force of the negative ions briefly making a + to + or - to - pattern that snaps the structure

Back

water is a

Front

compound

Back

what is an alloy an alloy is a mixture of different metal atoms I.e. stainless steel =chromium iron and nickel

Front

an alloy is a mixture of different metal atoms I.e. stainless steel = chromium iron and nickel

Back

a thermometer is stuck in an ice cube

Front

solid water molecules are lightly bonded and the atoms vibrate w\in the bonds as more heat is applied the applied the bonds are loosens molecules of water begin to slip over each other becoming liquid.If molecules break at the individual water molecules float freely about

Back

which is a characteristic of carbon dioxide

Front

it extinguishes a flame

Back

ionic bond

Front

is formed when electrons from one atom transferred to another creating 2 atoms wth positive charges and the oppositely charged atoms are attracted to one another creating a bond

Back

a pure copper wire is a

Front

alloy

Back

if you mix the element mercury with the element iodine they react and form

Front

the element mercury iodine

Back

which is a characteristic of oxygen

Front

it ignites a spark

Back

freezing

Front

to change from a liquid to a solid

Back

a metallic bond is a bond is a bond between

Front

positively charged metal atoms and free negatively charged atoms

Back

subliming

Front

to change from a solid to a gas

Back

condensing

Front

to change from a gas to a liquid

Back

melting

Front

to change from a solid to a liquid

Back