Chemistry chapter 1 Homework
Glucose is an example of a(n)
compound
Which one of the following would be a chemical property of a sample of neon gas?
B) It is inert.
Which of the following metric prefixes corresponds to 10³?
B) kilo-
Which of the following states of matter is portrayed by the following description: assumes the shape of its container because it has a definite volume but no specific shape?
B) liquid
Which of the following describes a chemical change involving water?
C) H₂O(l) → H₂(g) + ½O₂(g)
Which one of the following would be a physical property of glucose?
C) In its pure form, it is a white powder.
Which of the following are physical properties of matter?
C) density
Which of the following is a step that is NOT in the scientific method?
C) modifying laws
How many milliliters are in a liter?
1000 mL
You measured the mass of a dry powder on a balance to be 23.76 g. What would you report as the uncertainty of this measurement?
0.01
The number 875000 written in scientific notation would be
A) 8.75 × 10⁵
which of the following is an observation of a chemical property
Ignites in water
What Ehich of the following is a physical observation
Melts at 76 degrees C
Which of the following is a chemical process
Seperating water into hydrogen and oxygenq
Temperature
Which of the following is an intensive property of a sample of neon gas?
Density is defined as mass _____________ volume.
divided
Grape juice is an example of a(n)
homogenous
Which kind of hysical propety is color
intensive
Which one of the following is an example of a heterogenous mixture?
sand
Which of the following metric prefixes corresponds to 10⁻³?
E) milli-
What kind of hysical property is volume
extenisve
What is the name of the SI unit for length?
meter
Italian dressing contains olive oil and vinegar, which will separate out from each other if left to sit. This makes the dressing a:
A) Heterogeneous mixture
Which of the following is an example of an intensive property of a bar gold?
A) The bar has a density of 19.2 g/mL.
If you were given the task of measuring 75 milliliters of a liquid, which measuring device would you use?
A) a 100-milliliter graduated cylinder
Magnesium metal, a gray solid, is heated in a crucible in the presence of oxygen. A white powder is collected from the crucible. This is an example of
A) a chemical change
Which of the following metric prefixes corresponds to 10⁶?
C) mega-
Which of the following is an example of an extensive property of copper nugget?
D) It has a mass of 52.3 g.
Which of the following is an extensive property of the element carbon?
D) The mass of a carbon sample
Which one of the following is NOT an example of a physical change?
D) electrolysis of water to form hydrogen and oxygen gas.
A human is an example of a(n)
D) heterogeneous mixture
Which of the following metric prefixes corresponds to 10⁻⁶?
D) micro-
Calcium is an example of a
element
Some liquid in a jar can be separated by physical means into two separate liquids, which can then be separated no further. The liquid is a(n):
C) Mixture
A white powder mixture is placed into water. Some of the powder sinks to the bottom of the container, some rises to the top. The separation of the powder mixture is an example of
C) a physical change
Which of the following are chemical properties of matter?
flammability
