Lab Assess Given the data shown, what two substances react with vinegar? Hint: (+) = a reaction occurred, (-) = no re
Substance Appearance
Vinegar
Biuret
(protein)
lodine
(starch)
Litmus
(ph)
R-B Base
B-R Acid
Powder
+
0
+
-
Baking
Powder
Baking
Soda
Corn
Starch
Powder
Base
-
-
+
-
Powder
0
+
Gelatin
Crystal
Acid
-
+
-
Salt
o
Crystal

One of the reactions in a blast furnace used to reduce iron is shown above. how many grams of fe2o3 are required to produce 15.5 g of fe if the reaction occurs in the presence of excess co? a.11.1 g b.22.1 g c.30.0 g d.44.2 g

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.