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
frez [133]
2 years ago
5

A jar is filled to the top with water, and a piece of cardboard is slid over the opening so that there is only water in the . If

the jar is now turned over, will the cardboard fall off? What will happen if there is any air in the jar?
Chemistry
2 answers:
aivan3 [116]2 years ago
7 0

Answer:

it will all fall unless these is air

Explanation:

Rom4ik [11]2 years ago
3 0

Answer:

If you do it carefully enough, a small amount of water will pour out of the glass — that's supposed to happen. But try not to let any air bubbles get into the glass. Finally, slowly remove the hand holding the cardboard in place.

You might be interested in
a gas chamber is filled with four gases. When a small opening is made in the gas chamber you expect which gas to escape last hyd
Nimfa-mama [501]
I really don’t know the answer, please help this kiddo with his question
8 0
2 years ago
Describe what happens to particles as they go through a phase change and energy is added
S_A_V [24]

Solid-When a solid is heated the particles gain energy and start to vibrate faster and faster. Initially the structure is gradually weakened which has the effect of expanding the solid. Further heating provides more energy until the particles start to break free of the structure. Although the particles are still loosely connected they are able to move around. At this point the solid is melting to form a liquid.

Liquid-As the liquid gets warmer more particles have sufficient energy to escape from the liquid. Eventually even particles in the middle of the liquid form bubbles of gas in the liquid. At this point the liquid is boiling and turning to gas. The particles in the gas are the same as they were in the liquid they just have more energy. At normal atmospheric pressure all materials have a specific temperature at which boiling occurs. This is called the "boiling point" or boiling temperature.

Description of Phase Change Term for Phase Change Heat Movement During Phase Change

Solid to liquid Melting Heat goes into the solid as it melts.

Liquid to solid Freezing Heat leaves the liquid as it freezes.

Liquid to gas Vaporization, which includes boiling and evaporation. Heat  goes into the liquid as it vaporizes.

Gas to liquid Condensation Heat leaves the gas as it condenses.

Solid to gas Sublimation Heat goes into the solid as it sublimates.

3 0
3 years ago
Hi guys I need an science matter experiment to do at school. For example which chocolate is best to take at a hot climate? Dark,
inysia [295]
Dark is the strongest chocolate.
3 0
3 years ago
Consider the following balanced equation: Cu + 2AgNO3 Cu(NO3)2 + 2Ag How many moles of AgNO3 would be needed to produce 2.8 mole
S_A_V [24]
2.8(2/1)=5.6 moles of AgNO3 would be  needed
8 0
2 years ago
Read 2 more answers
How does a water molecule transfer from the ocean to form part of a cloud in the atmosphere? A. precipitation from the ocean and
swat32
D because evaporation travels the water through the air and condensation turns it into clouds
6 0
2 years ago
Other questions:
  • 20 N force moving a box to 30 meters distance. How much work id done? if it takes 10 sec to do this work, how much power is used
    5·1 answer
  • What do elements in thr first two columns of the periodic table have in common?
    14·2 answers
  • Hich of these correctly defines the pOH of a solution?
    10·2 answers
  • What are the types of connective tissue? Describe each type, and give an example of each.
    8·1 answer
  • What is true of neutrons?
    11·1 answer
  • Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball a
    10·2 answers
  • Why does boiling water in a large pot on a stove have a temperature of 100°C even if it has been boiling for an hour? The temper
    10·2 answers
  • Two substances A and B react with each other in such a way that one-half of A remains after 25 min and one-fourth of A remains a
    6·1 answer
  • What is the volume of 120 x 1022 molecules of nitric oxide gas, NO, at si B) 2.24L C) 0.0199 L D) 5.02 A) 1120 L
    5·1 answer
  • Which elements make up a water molecule?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!