Iron ore is reduced to pure iron by smelting, during which the iron (iii) oxide in the ore reacts with carbon monoxide gas, like this: fe2o3s + 3cog → 2fes + 3co2g suppose an engineer decides to study the rate of this reaction. she prepares four reaction vessels with 158.8g of solid iron (iii) oxide and 33.9g of carbon monoxide gas each. the volume and temperature of each vessel is shown in the table below. arrange the reaction vessels in decreasing order of initial rate of reaction. in other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. rate of reaction a 2.0l 1100.°c b 2.0l 1200.°c c 4.0l 1100.°c d 4.0l 1000.°c

Can someone me with questions 15 to 17 plz.

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

In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a.rectant b.product c.supernate