starburst2005
27.08.2019 •
Biology
1. for which of the following activities might you want to hire a chemist?
a. testing a sample of water from a well
b. finding a comet
c. examining the structure of plant cells
d. building a garage
2. which of the following procedures involves a physical change in one of the substances?
a. creating salt by reacting sodium metal and chlorine gas
b. allowing a nail to rust
c. building a model rocket propelled by mixing baking soda and vinegar
d. grinding chalk into a fine powde 3. you have three molecules of glucose (3c6h12o6). how many oxygen atoms do you have?
a. 1
b. 3
c. 6
d. 18
Solved
Show answers
More tips
- H Horoscopes, Magic, Divination How to Cast a Love Spell on a Guy? Guide for Guys...
- F Family and Home How to Sew Curtain Tapes: Best Tips from Professionals...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- F Food and Cooking The Disease That Haunted Abraham Lincoln...
- C Computers and Internet How to Get Rid of Windows Genuine Check?...
- H Health and Medicine How to perform artificial respiration?...
- S Style and Beauty Tricks and Tips: How to Get Rid of Freckles...
- C Computers and Internet How Do You Refill Cartridges?...
- A Auto and Moto Battle for the Relocation of The Cherkizovsky Market: Who Won?...
Answers on questions: Biology
- B Biology Which of the following best describes the impact that infectious agents in one s surroundings can have on the health of an individual? a They can bind with T cells and...
- B Biology Why do we not use probes in this dna paternity simulation and still obtain results?...
- B Biology What is the eventual fate of many discarded water bottles tapped answers?...
- B Biology Which of the following would most likely be a cause of primary succession? a. farming b. overhunting c. volcano d. defoliation...
- B Biology During transcription, the genetic information for making a protein is rewritten as a molecule of...
- B Biology Consider the events that lead to formation of the new nucleus at telophase. how do nuclear and cytosolic proteins become properly sorted so that the new nucleus contains...
- B Biology Aconsists of dna is wrapped around the histone proteins...
- B Biology Botulinum toxin (botox) is one of the most poisonous substances known. a few hundred grams is enough to kill every person on earth. botox causes paralysis in its victims....
- B Biology Passive communicators do all of the following except:...
- B Biology Which factor impacting the marine environment is considered abiotic? competition between species increased predation overfishing by humans sediment from runoff...
Ответ:
2. Which of the following procedures involves a physical change in one of the substances?
D. grinding chalk into a fine powder
3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?
C. 6
Ответ: