Questions (1-25) Flashcards
Which of the following is an example of a gas-liquid mixture
A carbonated drink
Accuracy is judged by
How close a value is to the true value
What is the amount of nickel, which has an average atomic mass of 58.7 u, presents in 525 g nickel
525
Dalton atomic theory stated that every element was made of atoms that could not be subdivided, atoms of the same element are alike, and
Atoms of different elements could join compounds
When nickel combines with fluorine to form nickel (III) fluoride, the charge of the nickel is
Ni3+
At which time of the day was the temperature approximately 5 degrees Celsius
10:00 am
Elements that have one bench valence electron tend to
Be highly reactive
Form ions
Become charged
After formulating a question, the next step of the scientific method is
To research and collect data
Which of the following is an example of a chemical property
Reactivity with oxygen
Temperature is a measure of the average (blank) energy of the particles in the object
Kinetic
Which type of graph best shows data that are parts of a whole?
Pie chart
The order of elements in the periodic table is based on
The number of protons in the nucleus
Which of the following statements is not true
- A p orbital can hold two electrons
- An s orbital can hold two electrons
- A d orbital can hold up to two electrons
- An f orbital can hold up to three electrons
And orbital can hold up to three electrons
The speed at which fluid flows through a pipe is influenced by the
Viscosity of the fluid
Flow rate of the fluid
Cross-sectional area of the pipe
You have 6.50 mol of chromium, which has a molar mass of approximately 52 g/mol. What is the mass in grams of the amount of chromium (hint: if it gives you two mols then multiply both of them together)
338 g
