Review the images of four igneous rock types. Use the images to answer the questions below. Enter your answers in the textbox below.
Rhyolite
Basalt
Gabbro
Granite
Think about the different characteristics that are used to distinguish different types of igneous rock.
1) Divide the four igneous rocks shown above into TWO groups of your choosing.
2) What igneous rock characteristic did you use to determine which rocks belong in each group?
Using a different set of rock properties, divide the rocks up again into TWO different groups.
3) This time, what different igneous rock characteristic did you use to determine which rocks belong in each group?

може ли да зареждате повече информация, моля

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol