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
yuradex [85]
4 years ago
10

When is it necessary for a scientists to do research?

Chemistry
2 answers:
Andre45 [30]4 years ago
8 0

Answer: A. before forming a hypothesis

C. after generating an idea from an observation

D. when designing an experiment to test a hypothesis

Explanation:

A. before forming a hypothesis: A background research of the previous research studies as well as the literature review is to be done before constructing a hypothesis.

C. after generating an idea from an observation:  After generating an idea from the observation other methodology should be implemented so as to rectified the fact that the observation is correct.

D. when designing an experiment to test a hypothesis: While implementing a suitable scientific methodology a research is required to be done so as test the hypothesis by an accurate and valid procedure.  

MAXImum [283]4 years ago
5 0
I would say A and D. A is right for sure, as for D, I'm not so sure. Hope this helps!
You might be interested in
How does knowing the reactants and products help you classify a chemical reaction? Write a short paragraph explaining.
Maurinko [17]
Answer:

This is wirtten all in one paragraph, because that is what the question asks.

There are five main type of reactions under which you can classify most chemical reactions. Those are: combination (also known as shythesis), decomposition, combustion, single replacement and double replacement. You know that it is a synthesis (combination) reactions when there are two reactants and one single product (the two reactants are combined to form one single product). When you have one single reactant and two or more products, it is a decomposition reaction (the one reactant decomposed). When oxygen is one of the reactants the reaction is a combustion. When ions are exchanged you are in front of replacement reactions: if it is one ion which is exchanged it is single replacement, and if there are two reactants and two products in which the ions are exchanged, then it is a double replacement reaction.

8 0
3 years ago
Read 2 more answers
The buret clamp was used to stabilize the
Firdavs [7]

Answer:

thermometer, calorimeter

Explanation:

6 0
3 years ago
Read 2 more answers
Write a five-sentence paragraph describing the nature and background of basketball.​
madreJ [45]

Answer:

The history of basketball began with its invention in 1891 in Springfield, Massachusetts by Canadian physical education instructor James Naismith as a less injury-prone sport than football. Naismith was a 31-year old graduate student when he created the indoor sport to keep athletes indoors during the winters.

Explanation:

The history of basketball began with its invention in 1891 in Springfield, Massachusetts by Canadian physical education instructor James Naismith as a less injury-prone sport than football. Naismith was a 31-year old graduate student when he created the indoor sport to keep athletes indoors during the winters.

3 0
3 years ago
How much heat is needed to raise the temperature of 50g of a substance by 15c when the specific heat is 0.92?
kirill [66]
The  heat  needed  to  raise  the  temperature   of  50g  of  substance  by    15 c   is  calculated as   follows

Heat  =   mc delta  T

m= mass   (50g)
c=  specific  heat  capacity  (0.92)
delta T=  change  in  temperature(  15 c)

heat  is  therefore=   50   x  0.92  x  15  =  690   

Nb:
  my   answer  has  no  units  since   the   given   specific  heat  capacity  has   no  units
8 0
4 years ago
Which of the following nuclei would be the most stable?
ValentinkaMS [17]
Ten protons would be Neon, but the most stable? I'd have to say 12 neutrons in contrast to the 10 protons.  Not too negative in balance.
6 0
4 years ago
Other questions:
  • When you turn on a lamp electric energy changes to?
    12·2 answers
  • Why is it important to add coefficients and not change the subscripts when balancing a chemical equation?
    11·1 answer
  • The surface area of a geometric solid is the amount of space inside the solid. true false
    6·2 answers
  • Determine the volume of sodium hydroxide added to the flask from the beret.
    7·1 answer
  • Which statement best describes the atoms of the gas neon? O They slide past each other. They move freely in all directions. O. T
    9·2 answers
  • Which component of the earth includes the water above, on, or in the earth's crust? (this includes water in the oceans, seas, la
    14·2 answers
  • Plants adapted to store _________________ can survive the _________________ of the savanna dry season. Many _________________ an
    13·2 answers
  • State the numbers of protons, neutrons & electrons in an atom of Carbon-14
    8·1 answer
  • A cheetah is faster than a cougar, which has greater momentum if the big cats are the same mass
    7·1 answer
  • Distinguish between the equilibrium constant expression and ksp for the dissolution.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!