(AKS 4d) When given 5 g of a mysterious white powder to identify, two students discuss how to plan an experiment to determine the identity of
the unknown powder. They know it is one of the six substances. Which of
the following is a logical first step in an experiment that could be used to
determine the identity of the mystery powder? (DOK 2)
Pick one physical property and test it on the mysterious powder first
before doing anymore planning.
Use the 5 g of white powder to determine if it is flammable or not
before doing anymore planning.
Determine physical and chemical tests for the six known substances
and then compare the mystery powder's properties to these.

The boiling point of liquids is very high what does it indicate

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag