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
solmaris [256]
3 years ago
10

What do scientists call a smart guess?

Chemistry
2 answers:
Artyom0805 [142]3 years ago
6 0
Scientists call smart guesses a hypothesis.
Alexus [3.1K]3 years ago
4 0
An educated guess is called estimation
You might be interested in
Draw it draw lewis dot structures for each hypothetical molecule shown below, using the correct number of valence electrons for
soldi70 [24.7K]

The first molecule is a sensible molecule having complete octet of each atom such as C, H and O whereas the second molecule having hydrogen present between the aldehyde and methyl group and thus showing hydrogen is making bond with aldehyde and methyl as well which is not possible because hydrogen only having one electron in its octet due to which it can only form a single bond by sharing its valence electron.

6 0
3 years ago
Carbon dioxide, water vapor, and oxygen pass through ---------------
Lelechka [254]
The answer is B) stomata.
5 0
2 years ago
Read 2 more answers
I have two solutions. In the first solution, 1.0 moles of sodium chloride is dissolved to make 1.0 liters of solution. In the se
charle [14.2K]

i not sure but I think yes

6 0
2 years ago
Which pieces of equipment would be used to measure the density of a solution?
Inessa05 [86]

Answer:

c I've taken chem 3 times

Explanation:

5 0
3 years ago
Read 2 more answers
How many atoms are found in 3.45g of CO2?
USPshnik [31]

<u>Answer:</u> The number of carbon and oxygen atoms in the given amount of carbon dioxide is 4.72\times 10^{22} and 9.44\times 10^{22} respectively

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Given mass of carbon dioxide gas = 3.45 g

Molar mass of carbon dioxide gas = 44 g/mol

Putting values in above equation, we get:

\text{Moles of carbon dioxide gas}=\frac{3.45g}{44g/mol}=0.0784mol

1 mole of carbon dioxide gas contains 1 mole of carbon and 2 moles of oxygen atoms.

According to mole concept:

1 mole of a compound contains 6.022\time 10^{23} number of molecules

So, 0.0784 moles of carbon dioxide gas will contain 1\times 0.0784\times 6.022\times 10^{23}=4.72\times 10^{22} number of carbon atoms and 2\times 0.0784\times 6.022\times 10^{23}=9.44\times 10^{22} number of oxygen atoms

Hence, the number of carbon and oxygen atoms in the given amount of carbon dioxide is 4.72\times 10^{22} and 9.44\times 10^{22} respectively

3 0
3 years ago
Other questions:
  • If 125 grams of Cu reacts 75 grams of HNO3, how many grams of Cu(NO3) form?
    7·1 answer
  • Calculate the pH of the buffer
    13·1 answer
  • Which of these cause the build up of volcanic landforms?
    15·2 answers
  • Given the equation representing a system at equilibrium:
    11·2 answers
  • Calculate the bond energy per mole for breaking all the bonds in methane, CH4. Express your answer to four significant figures a
    12·2 answers
  • Since the action and reaction are exactly equal and oppositely directed , how can there be a net force on an object ?
    11·1 answer
  • 5.75 moles of H2 gas to liters at STP
    5·1 answer
  • Someone please help will mark as brainliest
    15·1 answer
  • Suppose you are provided with a 30.86 g sample of potassium chlorate to perform this experiment. What is the mass of oxygen you
    5·1 answer
  • What would the mass number of sodium be? atomic number 11 number of protons 11 number of neutrons 12
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!