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melomori [17]
3 years ago
7

The funnel shaped area at a volcanos vent is called a

Chemistry
1 answer:
tatyana61 [14]3 years ago
3 0

Answer:

Crater

Explanation:

From the magma chamber (where magma collects) the magma passes through a tunnel-like structure called the conduit. At the top of the conduit is a funnel-shaped area which is called the crater. This is the pathway of magma as it exits the volcano and goes out to the surface, where it will then be called lava.

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How many pi bonds are present in a molecule of HCP?
Anestetic [448]

Answer:

2

Explanation:

6 0
3 years ago
The following is a list of common errors encountered in research laboratories. Categorize each as a determinate or an indetermin
Kay [80]

Answer:

An unknown being weighed is hygroscopic. - operative error

One component of a mixture being analyzed quantitatively by gas chromatography reacts with the column packing. - methodic error

The tip of the pipet used in the analysis is broken. - instrumental error

In measuring the same peak heights of a chromatogram, two technicians each report different heights - operative error

Explanation:

In chemical analysis, operative errors are that largely introduced into the measurement because of variation of personal judgements of analysts. It is also a personal error that emanates solely due to the analyst.

A methodic error arises as a result of adopting defective experimental methods. For example, a column packing that reacts with a component of the mixture is used in the gas chromatography.

Instrument error refers to the error of a measuring instrument, for instance, the use of a pipette with a broken tip.

4 0
3 years ago
The heat energy needed to raise the temperature of vapor above its saturation point is called _____________________. A. sensible
lana [24]

Answer:

Option (D)

Explanation:

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The super-heat can be mathematically written as:

Super-heat = Current temperature - Boiling point of the liquid.

Thus, super-heat refers to the amount of energy that is required to increase the temperature of vapor beyond its point of saturation.

This super-heat is essential as it helps in preventing the damages of machines like air conditioner, fridge and also helps in their soft running.

Hence, the correct answer is option (D).

7 0
4 years ago
How does the composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and o
IrinaK [193]
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The hydrogen and oxygen molecules in a mixture do not form strong bonds between each other. The molecules of both gases are only contained in the same space or volume and the individual molecules retain their chemical properties. 

A compound containing hydrogen and oxygen molecules exhibit different chemical (and even physical) properties compared to the individual molecules themselves.

Water for example, is a compound with 2 hydrogen atoms and 1 oxygen atom, chemically-bonded together. Hydrogen gas is highly flammable, water is not. Oxygen gas is an essential reagent for combustion (or burning) reactions, water is not. 
 
Thus, throwing a lighted match to a gaseous mixture of hydrogen (H_{2}) and oxygen (O_{2}) would create fire, or even an explosion (since hydrogen is flammable and oxygen feeds the reaction). Throwing a match to water vapor (H_{2}O) would not create fire. 
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4 years ago
___ is Thermal energy that flows between objects due to a difference in tempture
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___ is Thermal energy that flows between objects due to a difference in tempture

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