Ejercicio 1 Ejercicios 1 Lea elresumendelcaptulo1 (p.38-39)y resuelvalossiguientesejercicios: 1.54, 1.58, 1.60, 162, 1.78, 1.86, 1.106, 1.108, 1.122,

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Ejercicio 1
Ejercicios 1
Lea elresumendelcaptulo1 (p.38-39)y resuelvalossiguientesejercicios:
1.54, 1.58, 1.60, 162, 1.78, 1.86, 1.106, 1.108, 1.122, 1.124, 1.128, 1.30.
QUERIDOS ESTUDIANTES PONGA ATENCION EN LA FORMADE PRESENTAR SU TRABAJO:
ESCRIBA A MANO NO EN LA COMPUTADORA Y DEMUESTRE SU TRABAJO,SOLO LA RESPUESTA NO LE DA CREDITO A SU TRABAJO, TOMEFOTO Y SOMETALO EN ESTE LINK.
https://uagm.blackboard.com/courses/1/28699_CHEM_224-O_2112_940_ATB/messages/_2270006_1/Libro%20de%20Quimica%20Katherine%20Denniston%2C%20Joseph%20Topping

1.54 Label each of the following as either a homogeneous mixture or a heterogeneous mixture:
a. gasoline c. concrete
b. vegetable soup
d. hot coffee

1.58 Label each of the following as either a physical change or a chemical reaction:
a. A puddle of water evaporates.
b. Food is digested.
c. Wood is burned.

1.60 Label each of the following properties of sodium as either a physical property or a chemical property:
a. When exposed to air, sodium forms a white oxide.
b. The density of sodium metal at 25C is 0.97 g/cm3.

1.62 Label each of the following as either a pure substance or a mixture:
a. sucrose (table sugar)
c. urine
b. orange juice
d. tears

1.78 Determine the temperature reading of the following thermometer to the correct number of significant figures.

1.106 If a drop of blood has a volume of 0.05 mL, how many drops of
blood is in the adult described in Question 1.105?

1.108 A newborn is 21 in in length and weighs 6 lb 9 oz. Describe the
baby in metric units.

1.122 The weather station posted that the low for the day would be 10.0F. Convert 10.0F to:
a. C
b. K

1.124 Convert 300.0 K to:
a. C
b. F

1.128 Calculate the density of 50.0 g of an isopropyl alcoholwater mixture (commercial rubbing alcohol) that has a volume of 63.6 mL.

1.30 Why is observation a critical starting point for any scientific study?