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
Sloan [31]
3 years ago
10

The second step to the scientific method is to state the "problem", the scientific question to be solved. What is one requiremen

t that needs to be fulfilled in order for the "problem" to be valid? A: It needs to be a problem that has a number answer. B: It needs to be a problem that can be solved experimentally. C: It needs to be a problem that has a yes or no answer.
Chemistry
2 answers:
Aleks [24]3 years ago
7 0
The answer is B. In order to test something out you need to be able to solve it.
kykrilka [37]3 years ago
5 0
B B B B B B B B B B B B B B B B BB B B. :)
You might be interested in
Which reactant will be in excess, and how many moles of it will be left over?
timofeeve [1]

Answer:

Oxygen with 0.36 moles left over

Explanation:

5 0
3 years ago
Read 2 more answers
What is the maximum number of electrons in p&q shell​
Bad White [126]

Answer:

6 electrons

Explanation:

:)

hope this helps :))))))))

5 0
3 years ago
Read 2 more answers
In this double replacement reaction, which are the products? hcl + naoh —> ______?
Anarel [89]
The answer is:  " NaCl + H₂O " ; (or; write as:  " H₂O + NaCl " ) .
________________________________________________________
Specifically:
_________________________________________________________

    HCl + NaOH  —>  NaCl + H₂O  ;   or; write as:

    NaOH + HCl   —>  H₂O + NaCl  .
_______________________________________________________
            This type of "double-replacement" reaction is called "neutralization".
 
             Since we are adding a strong acid to a strong base (reactants), we know that the product will be:  1) a salt ; and 2) water.  Since we know one of the reactants will be "water" (H₂O) ; we can find the base (i.e. , the "remaining product") from selecting the "unused elements" to form the corresponding "salt".
________________________________________________________
3 0
3 years ago
Read 2 more answers
A molecule in which the central atom forms three single bonds and has one lone pair is said to have a ________ shape.
nignag [31]

Answer : The correct option is, (c) pyramidal

Explanation :

As we are given that a molecule in which the central atom forms three single bonds and has one lone pair that means the central metal atom has 3 bond pairs and 1 lone pair of electrons.

There are total 4 electron pairs. So, the hybridization will be sp^3 and the electronic geometry of the molecule will be tetrahedral.

But as there are three atoms or bonds around the central atom and the fourth position occupied by lone pair of electrons. The repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be pyramidal.

Hence, correct option is, (c) pyramidal

5 0
3 years ago
What is the electron configuration of the element in group 13 and period 3 on the periodic table? *
tankabanditka [31]

Answer:

The 3rd option is correct

Explanation:

The element in group 13 and period 3 is aluminium which has the electron configuration

1{s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{1}

or [Ne] 3s^2 3p^1

4 0
2 years ago
Other questions:
  • Methanol burns in oxygen to form carbon dioxide and water. find delta h
    8·1 answer
  • Plasma is found in which of the following substances?
    6·1 answer
  • What kind of change occurs when a compound is separated into its components?
    8·1 answer
  • In comparison with liquids and gases, solids are
    8·1 answer
  • Which of the following correctly describe insulin and glucagon? select all that apply.
    11·1 answer
  • The process that changes a substance from a liquid to a gas below the substance's boiling point
    9·1 answer
  • Which of these is a biomass energy source the sun sugarcane natutal gas water
    14·1 answer
  • Which one would it be?
    6·1 answer
  • Look carefully at the list of objects and order
    6·1 answer
  • A compound is 48.6 % C, 8.2 % H, and 43.2 % O by mass. Calculate the empirical formula of this compound.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!