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
vivado [14]
3 years ago
14

PLS HELP THIS IS SCIENCE !! IGNORE THE QUESTIONS I ACCIDENTLY PRESSED ON

Chemistry
2 answers:
Monica [59]3 years ago
4 0

Answer:

10.)14

Explanation:

MARK AS BRAINLEST!!

grandymaker [24]3 years ago
4 0

Answer:

where is the answer??

Please do not just take the points without answering the question.

You might be interested in
An experiment has been set up to determine if different types of insulation wrap will affect the temperature of water in a conta
kozerog [31]
Insulation wraps because independent is the variable you are changing to affect the dependent variable (what you are measuring)
3 0
3 years ago
When doing a titration what is the equivalency point of the neutralization reaction?
KengaRu [80]
The equivalency point is at the point of the titration where the amount of titrant added neutralize the solution. When it’s a strong acid strong base titration, the equivalence point will be 7. When it is a weak acid strong base, the equivalence point it more basic (the exact number depends on what acid and base you use). And when it is a strong acid weak base, the equivalence number is more acid (the exact number depends on what acid and base you use). Hope this helps!
3 0
3 years ago
14
Bond [772]

Answer:

Explanation:

The melting point of a substance is the temperature at which its melt. The state of a substance is dependent on it's melting temperature. Generally, melting point above 25 °C is a solid.

This means phenol is a solid

Duodecane has melting point below 25 °C hence it is either a liquid or gas. However its boiling point of 216 °C means it would require higher temperature to boil it. Since 25 °C is less than 216 °C it means that it would remain in the liquid state.

Methane has melting point below 25 °C hence it is either a liquid or gas. However its boiling point of -164 °C means it boils easily even at very low temperatures. Since 25 °C is greater than -164 °C it means that it would exist in the gaseous state

8 0
3 years ago
• Draw lewis dot structures for an atom of each of following elements:
marin [14]

Answer:

Explanation:

Lewis dot structures represent the symbol of an atom we're looking at and the number of valence electrons it has. This number is represented by the sum of dots around the symbol.

  • Potassium is in group 1A, this means it only has one valence electron, so we draw K with one dot in its Lewis diagram;
  • Argon is in group 8A, this means it has eight valence electrons, so we draw Ar with 8 dots around it in its Lewis diagram;
  • Silicon is in group 4A, this means it has four valence electrons, so we draw Si with 4 dots around it in its Lewis diagram;
  • Arsenic is in group 5A, this means it has five valence electrons, so we draw As with 5 dots around it in its Lewis diagram.

Those are represented in the image attached below:

5 0
2 years ago
Balance the following chemical equations:
tamaranim1 [39]

Answer:

Explanation

=============

One

=============

Ca(OH)2 + 2HNO3 -----> Ca(NO3)2 + H2O

Focus on the NO3. This is an odd problem and you usually do not focus on the complex ion. But this one works easiest if you do.

The problem now is going to be the oxygens. There are 2 with the Calcium and only 1 free one going to the water. (The NO3 has been taken care of in the last step).

Ca(OH)2 + 2HNO3 -----> Ca(NO3)2 + 2H2O

Count the atoms. I think this equation is balanced.

atom                      Left              Right         Result

Ca                            1                    1               Balanced

O                              8                   8              Balanced

H                              2 + 2              2*2         Balanced

N                               2                    2            Balanced

===========

Two

===========

CH4 + O2====>  CO2 + H2O

Start with the hydrogens.

The right side requires a 2

CH4 + O2 ===>  CO2 + 2H2O

Now look at the oxygens. There are 4 on the right. and only 2 on the left. You need to multiply O2 by 2

CH4 + 2O2 ===>  CO2 + 2H2O

Each side has 1 Carbon 4 hydrogens and 4 oxygens. The equation is balanced.

3 0
2 years ago
Other questions:
  • Which has the highest viscory ? Milk ? Water ? Orange juice?
    15·1 answer
  • What diseases are spread in warm temperatures?
    8·2 answers
  • If we have equal masses of copper at 80oC and water at 20oC and we put them together, what is the final temperature?
    9·1 answer
  • What electrically neutral atom will have an electron configuration of 1 s 22 s 22 p 4? Use a periodic table.
    14·1 answer
  • The use of high-pressure chambers to control disease processes is known as
    11·1 answer
  • Which region of the periodic table shown here contains elements that are easiest to oxidize?
    5·2 answers
  • Two samples of carbon come into contact. Heat will transfer from Sample A to Sample B if the average kinetic energy of Sample A'
    5·2 answers
  • Carbon dioxide gas occupies a volume of 20.0 L at 308K and 2.30 atm. What volume would it occupy at 416 K and 5.40 atm?
    6·2 answers
  • What is the variable for the quantity of heat in a system?
    8·1 answer
  • Chromatogram results are considered to have better resolution if the RF values of the components being separated or further apar
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!