A chemist divides a large sample of a mixture into three smaller portions. Each of these portions contains different ratios of the component substances that make up the mixture. Which description best fits the mixture?
ОА
compound
OB.
element
Ос.
heterogeneous mixture
OD
homogeneous mixture
OE pure substance

If soap hits the floor, is the soap dirty or the floor

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.