1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Volgvan
3 years ago
6

Please help I will mark as Brainly

Chemistry
1 answer:
Elina [12.6K]3 years ago
7 0
The answer is D because when a scientist publishes a book it helps other scientists and other scientists can help the scientists that publish the book.
You might be interested in
You're legally obligated to yield the right-of-way:
kenny6666 [7]
It is most likely B.
3 0
3 years ago
What is meant by the negative sign in an answer like"-46.8kJ"? When would you use a positive sign
MA_775_DIABLO [31]
It’s positive when you use energy for work
3 0
3 years ago
A student with an unknown code of Q3A conducts a qualitative analysis of her unknown. Her results indicated the formation of a y
insens350 [35]

Answer:

Grey precipitate implies the presence of silver ions

Yellow precipitate implies the presence of lead II ions

Explanation:

Qualitative analysis provides us a quick method of identifying ions present in a sample by chemical reactions involving simple reagents. Precipitates having a unique colour is formed. The identity of ions in the sample is deduced from the colour of precipitate obtained when particular reagents are added.

In the question, a precipitate containing silver ions upon standing turn into grey colour. Similarly, lead II ions give a yellow precipitate.

6 0
3 years ago
Which are characteristics of a prokaryotic cell? Select three options.
Lostsunrise [7]

Answer:

Contains DNA, Contains Ribosomes, Lacks a nucleus

Explanation:

4 0
3 years ago
Read 2 more answers
If there is 5 atoms of oxygen in the reactant, how many oxygen atoms must be in the product​
tiny-mole [99]

Answer:

5

Explanation:

It requires 20 chracters to fill this answer

4 0
3 years ago
Other questions:
  • Electrons and protons (attract/repel) each other
    11·1 answer
  • Lori’s family is on a road trip. They split their drive into the five legs listed in the table. Find the average velocity for ea
    15·1 answer
  • Balance the following reaction: Mg+ HCl → MgCl2 + H2
    13·2 answers
  • What is the name of the compound cs (mno4)2
    9·1 answer
  • How do opposite charges affect one another?
    14·2 answers
  • The neutron has no electrical charge. True False
    8·2 answers
  • How are atomic mass and mass number similar
    14·1 answer
  • What is the oxidation state of nitrogen in NaNO2?<br> (1) +1 (3) +3<br> (2) +2 (4) +4
    13·1 answer
  • • How do you change from one unit to another? Be prepared to work a problem or two
    8·1 answer
  • Is fireworks a physical or a chemical change and why??
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!