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part i multiple choice: select the letter choice that best answers the …

Question

part i multiple choice: select the letter choice that best answers the question and record on your answer sheet. (1 pt each, 40 pts total)

  1. which of the following is an example of a qualitative observation?

a. the shirt is red.
b. the shirt is ugly.
c. the shirt is 72 cm long.
d. the shirt has a mass of 15 grams.

  1. using the graduated cylinder to the right, select the most accurate and precise measurement.

a. 22 ml
b. 20 ml
c. 22.0 ml
d. 20.0 ml

  1. how many significant figures are in the measurement 760 mmhg?

a. 0
b. 1
c. 2
d. 3

  1. how many significant figures are in the measurement 0.0103 ml?

a. 2
b. 3
c. 4
d. 5

  1. a solution where the solvent is water is known as a(n)

a. aqueous solution.
b. alloy.
c. solute.
d. substance.

  1. a property of matter that depends on the amount of matter present would be considered a(n)

a. physical
b. chemical
c. intensive
d. extensive

  1. micah tells his mom he cant go to school today because he is running a temperature of 310.2 k. what is his temperature in degrees fahrenheit?

a. -11.4°f
b. 28.1°f
c. 37.1°f
d. 98.7°f

  1. matter with an indefinite shape but a definite volume would be considered a

a. solid
b. liquid
c. gas
d. plasma

  1. using the data table to the right, determine the identity of a cube of metal that has a volume of 1.73 cm³ and a mass of 33.3 grams.

a. gold
b. nickel
c. silver
d. zinc

  1. which of the following is not an example of a physical change?

a. cutting a piece of string in half.
b. freezing water into an ice - cube.
c. crumpling a piece of paper into a ball.
d. letting the food in your lunch box rot in your locker.

  1. you are given a container filled with clumps of iron and sand. you can separate the iron from the sand using a magnet. this makes this a

a. homogeneous mixture
b. compound
c. heterogeneous mixture
d. solution

  1. which of the following measurements would be considered the smallest?

a. 10,000 μg
b. 1,000 hg
c. 100 cg
d. 10 g

Explanation:

1.

Brief Explanations

A qualitative observation is descriptive and non - numerical. "The shirt is red" is descriptive, while the others involve numerical measurements.

Brief Explanations

The meniscus of the liquid in the graduated cylinder should be read at the bottom. The most accurate and precise reading is 22 mL.

Brief Explanations

In 760 mmHg, the trailing zero is not significant as there is no decimal point. So, there are 2 significant figures.

Answer:

A. The shirt is red

2.