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
atroni [7]
2 years ago
14

Why is it important for science to keep testing a hypothesis even after they’ve found it to be true?

Chemistry
1 answer:
satela [25.4K]2 years ago
6 0

Answer:

Explanation:

Repeated tests help determine whether the hypothesis is always true in different circumstances. Repeatedly testing a hypothesis qualifies it to be accepted as a theory.

You might be interested in
Protons, Neutrons, and Electrons Practice Worksheet
ANTONII [103]

Answer:

Sorry I am not good at chemistry

Explanation:

6 0
3 years ago
How many molecules of Iron(II)oxide are present in 35.2*10^-23 g of Iron (II)oxide?
slava [35]

Answer:

R.F.M of Iron (II) oxide :

{ \tt{ = (56 \times 2) + (16 \times 3)}} \\  = 160 \: g

Moles :

{ \tt{ \frac{35.2 \times  {10}^{ - 23} }{160} }} \\  = 2.2 \times  {10}^{ - 24}  \: moles

Molecules :

{ \tt{ = 2.2 \times  {10}^{ - 24}  \times 6.02 \times  {10}^{23} }} \\  = 1.3244 \: molecules

4 0
3 years ago
What energy convertion happens when green plants use energy from the sun to make sugar?
mixer [17]
The energy conversion happening here is known as photosynthesis. Photosynthesis is a process where the leaves of a plant absorb water and carbon dioxide, then, using light energy from the sun, convert that into oxygen and sugar.
8 0
3 years ago
Read 2 more answers
Consider the balanced equation below.
Bumek [7]

Answer : The correct option is, (2) 8 mole of hydrogen will react with 1 mole of sulfur.

Explanation :

The balanced chemical equation is,

8H_2+S_8\rightarrow 8H_2S

By the stoichiometry we conclude that, 8 moles of hydrogen react with 1 mole of sulfur to give 8 moles of hydrogen sulfide.

Hence, the correct options is, (2) 8 mole of hydrogen will react with 1 mole of sulfur.

6 0
3 years ago
Read 2 more answers
If 17.4 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentra
Verizon [17]
NH3  +HCl  ---->  NH4Cl

moles   of  HCl  used =    (0.8  x  17.4) /1000=  0.0139 moles
by  use   of reacting  ratio  between  HCl  to   NH4Cl    which is 1:1    therefore  the  moles   of  NH4Cl  is  also  =  0.0139 moles
molar   concentration  =  moles  /volume  in  liters 

molar  concentration  is  therefore=    (0.0139/5)  x1000 =  2.7 M
8 0
3 years ago
Read 2 more answers
Other questions:
  • HELP ASAP PLEASE 75POINTS
    12·1 answer
  • iven the following chemical equations:I. C+ 2H_2 2​ → CH_4 4​ (0.22 moles of H_2 2​ )II. 6CO_2 2​ + 6H_2 2​ O → C_6 6​ H_{12} 12
    6·1 answer
  • What is the atomic number of an atom that has 3 protons and 4 neutrons?
    9·2 answers
  • Which of the following elements is most likely to react?<br> A.Cu<br> B.Al<br> C.Li<br> D.Mg
    8·1 answer
  • The explosion of 2.00 mol of solid trinitrotoluene (TNT; C7H5N3O6) with a
    12·1 answer
  • How to first ionization energies vary within groups and across periods
    5·1 answer
  • If a person is throwing darts at a target, and shoots three in a row in the same spot on the 20 section outer ring, but none in
    7·1 answer
  • Using the appropriate starting material, (1) show the synthetic steps of the modified Kiliani-Fischer chain extension synthesis
    5·1 answer
  • 154 pm is greater than 7.7 x10^-9<br> A. True<br> B. False
    8·1 answer
  • Seasonal changes in water temperature tend to remain within a narrow range. This is opposed to air temperature, which tends to f
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!