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
Katen [24]
3 years ago
15

Why do scientists need scientific models?

Chemistry
2 answers:
zhuklara [117]3 years ago
7 0
So they can prove there hypothesis is correct or have an understanding.
Kazeer [188]3 years ago
6 0
Because sometimes the real thing is either too big or too small to observe or test, so they need an easily observable model.
You might be interested in
What are the limitations of J.J. Thomson's model of the atom?​
andrew11 [14]

Explanation:

thanks for the points big man

6 0
2 years ago
1) Alarge doud of dust and gas spread out in a large area is
alexdok [17]

Answer:

D. nebula

Explanation:

Hope this helps

<3

8 0
2 years ago
Define mass number of an atom.​
Georgia [21]
The mass number of an atom is basically the total number of protons and neutrons.
6 0
2 years ago
A pure compound is found to be 40.0% carbon by mass, 6.73% hydrogen by mass, and 53.3% oxygen by mass. determine the empirical f
ratelena [41]
Since there is no weight, I would assume that this is a 100g of pure compound.
Okay so I would be changing the percentage to gram to solve for the mole.
So
40.0g C (1 mol C/12.01 g C) = 3.33 mol C
6.73g H (1 mol H/1.01 g H ) = 6.66 mol H
53.3g O (1 mol O/16.00 g O) = 3.33 mol O

With that, two of our moles is 3.33, so we consider that are our 1, as it is also the lowest. Therefore the empirical formula is CH2O
3 0
2 years ago
Someone please help me I got a few minutes
HACTEHA [7]

Answer:

30 feet /second

Explanation:

60 feet/ 2 sec = 30 feet/sec

6 0
3 years ago
Read 2 more answers
Other questions:
  • Witch of the following work together to form tissues?
    14·2 answers
  • Calculate the mass (in grams) of cobalt that has the same number of atoms as 521 mg of silicon.
    10·1 answer
  • What pressure is required to reduce 57 mL of
    15·1 answer
  • What property of matter best describes the way a typical alcohol thermometer works?
    7·1 answer
  • Are the electron geometries of water and ammonia similar?
    10·1 answer
  • What is the number of molecules present in 1.12 dm^3 of nitrogen gas at STP​
    12·1 answer
  • Calculate the number of moles in 4.22x1022 molecules of H,O
    14·1 answer
  • A 25°C sample of gas has a volume of 5.0 L. What will it’s volume be if it is heated to 50.0°C?
    8·1 answer
  • _____of gas molecules with an object is the cause of<br> pressure by a gas.
    7·2 answers
  • ¿por que biomasa es una energía limpia y renovable, si al final los productos como biodiesel e los pellets se queman y esa combu
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!