« previous next »

Author Question: What terms refer to a vertical column in the periodic table of elements? A) group or family B) ... (Read 176 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
on: Aug 27, 2018
What terms refer to a vertical column in the periodic table of elements?
 
  A) group or family
  B) group or series
  C) period or family
  D) period or series
  E) none of the above

Question 2

Which of the following is a basic step in the scientific method?
 
  A) perform an experiment and collect data
  B) analyze experimental data and propose a hypothesis
  C) test a hypothesis and state a theory or law
  D) all of the above
  E) none of the above


tuwy

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

bobbysung

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Aug 27, 2018
TY


tuwy

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Aug 27, 2018
You're welcome


« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

The family tree of HIV and related viruses The family tree of HIV and related viruses
Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th
Complete the table by dragging the white labels to the gray targets, the blue la Complete the table by dragging the white labels to the gray targets, the blue la
five realms of family life five realms of family life
Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s
Christmas table decoration ideas Christmas table decoration ideas
Video: Red alga life cycle Animation

For a complete list of videos, visit our video library