Unit 1-5 regents chem

What is the symbol for Copper

• C

• Co

• Cu

• Ci

what are the three different states of an orbital

• filled

• half-filled

• semi-filled

• empty

• complete

what is precision and accuracy

• they are the same

  both close to real value

• Accuracy is how close to the real value

  and precision is about repetition

• Accuracy is about repetition and precision is about how close it is to the real value

• they are the same both about repition

How does frequency and wavelength relate

• As frequency decreases wavelength decreases

• As frequency increases wavelength decreases

• As frequency increases wavelength increases

• As frequency decreases

  wavelength stays the same

What is the symbol for Tungsten

• T

• Ti

• W

• Wu

What is amplitude

• height of the wave measured from the origin to its crest

• the number of waves that pass a given point per second

• distance from two crests

Which is a physical change

• Burning paper

• Ripping paper

• Water evaporating

• combining sodium and chlorine to make salt

what is matter

• Anything that takes up space

• Anything that has mass

• Anything that takes up space and has mass

• Anything

What is the 1st group in the periodic table called

• halogens

• the carbon family

• alkali metals

• alkali earth metals

what does decantation seperate

• solid and liquid

• heavy solids and liquids

• heavy solids and heavy liquids

• two gases