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
Marrrta [24]
2 years ago
9

if matter is made of many tiny particles, why does it seem to be continuous? Why doesn’t water seem to behave like sand?

Chemistry
1 answer:
valkas [14]2 years ago
7 0

Answer:

Explanation:

if matter is made of many tiny particles, why does it seem to be continuous? Why doesn’t water seem to behave like sand?

Water and some other molecules exhibit a property know as hydrogen bonding.  A hydrogen atom in one molecule of water is attracted to the oxygen in a neighboring molecules of water.'

The force of this attraction is less than a standard chemical attractive force, but it is real and measurable.

When billions and trillions of water molecules are held together by this force, the small amount of molecule to molecule force is added up to a tremendous force.  That is why even though sulfur is below oxygen on the periodic table, hydrogen sulfide is a gas while hydrogen oxide is a liquid at room temperature.

Hydrogen bonding explains the unique properties of ice, liquid water and steam,We all know water exists in several forms such as solid, liquid and ice. Water boils at 100  C and freezes at 32  F, right? Am I correct? Let us look at some of the chemistry behind forms of water.  

The strong polar bond between water molecules creates water cohesion.

As they are cooled, aggregates of most other substances increase monotonically in density becoming progressively heavier -- the colder they are, the more tightly packed their molecules become. But water possesses a peculiar physical feature: ice expands, so it is lighter than liquid water (i. e., ice floats). When water trapped in rock crevices freezes, it breaks rocks (and pipes).

 

Water is vital to all known life forms, that is, all those on planet Earth. It is so integral to life as we know it that many biologists cannot even envision life without water (although that might be possible). Indeed, the physical properties of water dictate critical thermal limits for living systems.

In one sci-fi story, an alien refers to humans as "ugly bags of mostly water" -- our bodies are about 60-70% water, depending upon how dehydrated we are at any given time. Humans use massive amounts of freshwater to drink, cook, bathe, flush toilets, do laundry, fill swimming pools, irrigate yards and gardens, run flowing fountains, and for recreation. Precious clean water is often wasted, such as when people leave tap water running while washing their hands or brushing their teeth. The personal water consumption of an average American is about 200 gallons per day, but when industrial and energy usage is added in, per capita freshwater usage is more than 2000 gallons/day. People in third world countries use much less water, of course.

Most freshwater is claimed or "owned" and there is not enough to go around. Approximately half of the world's population of people do not even have adequate access to clean drinking water. One of the major symptoms of the human overpopulation crisis is shortages of available fresh water. Wars will be fought over water.

You might be interested in
What are units of molarity
liberstina [14]

Answer:The units of molarity are M or mol/L. A 1 M solution is said to be “one molar.”

Explanation:

4 0
3 years ago
Valora la importancia de los alcoholes dentro de la medicina e industria indagando riesgos MEDICINA​
VikaD [51]

Answer:

diwjjwjdnsjakkakakalalskb

5 0
2 years ago
How many grams are there in 3.30x10 23 grams of n2i6
qwelly [4]
Technically, the answer should be 3.30 * 10^23 grams. But I think you mean either molecules, atoms, moles or grams of Ni2I6 with that number of molecules .

1 mole of Ni2 I6  = 6.02 * 10^23 molecules
x  [mole] = 3.30 * 10^23 molecules

1/x = 6.02 * 10^23 / 3.30 * 10^23 Cancel the 10^23 on the right side
1/x = 6.02 / 3.30 Cross multiply
3.30 = 6.02 x Divide by 6.02
3.30 / 6.02 = x 
x = 0.548 moles 

what to do from here?

1 mole of Ni2I6 is
2 * Ni = 2 * 59 = 118 grams
6 *  I = 6 * 131 = <u>786 grams</u>
Total  =               904 grams

Set up a proportion.
<u>1 mole Ni2I6 </u>  = <u>904 grams</u>  
0.548 moles    = x

1/0.548 = 904/x Cross multiply
x = 0.548 * 904
x = 495.4 grams of Ni2I6 <<<<<< Answer.

8 0
3 years ago
2 N H 3 ( g ) ⟷ N 2 ( g ) + 3 H 2 ( g ) K p = 0.83 Consider your answers above, if the initial pressures for all three species i
OlgaM077 [116]

Explanation:

\geqslant  \sqrt[ \leqslant  \geqslant  \sqrt[ log_{ \sqrt[ \geqslant  | | \binom{ \geqslant l log_{ \sec(o \gamma  \geqslant v\%e) }(if) }{your} | |  \times \frac{heart}{broe \\ \%\} ]{broke} }(answer) ]{the}  \times \frac{fact}{with} ]{lovely}  \times \frac{than}{more}

5 0
3 years ago
What is an Atomic Model
NARA [144]

Answer:

the structure of an atom, theoretically consisting of a positively charged nucleus surrounded and neutralized by negatively charged electrons revolving in orbits at varying distances from the nucleus, the constitution of the nucleus and the arrangement of the electrons differing with various chemical elements.

Explanation:

8 0
3 years ago
Other questions:
  • What is the most disorganized state of matter?
    11·1 answer
  • Scientists are trying to find chemicals that will be helpful to agriculture but which will not ____ the environment
    6·1 answer
  • 10.An alpha particle (a) same as *
    6·1 answer
  • How many grams of no2 are theoretically produced if we start with 1.20 moles of s and 9.90 moles of hno3?
    5·1 answer
  • When the surface of a mirror curves inward, like the inside of a bowl, it is called a ____.
    13·2 answers
  • Arturo says that some plastics are made by chemically joining the same molecule to itself. Ida says that some plastics are made
    9·2 answers
  • Move the red warning icon to focus of the earthquake.
    10·1 answer
  • Explain what happens during a solar eclipse
    14·2 answers
  • 5. -9. 2. -3. b
    8·1 answer
  • E. Which of the following is a mixture? i. Water ii. Hydrogen iii. Air iv. Iron​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!