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3 years ago

Dissolved minerals trapped in magma under tremendous pressure provide the force for a volcanic eruption.

Chemistry

2 answers:

dmitriy555 [2]3 years ago

7 0

Not so. Dissolved gases trapped in the minerals provide the pressure for an explosive eruption.

e-lub [12.9K]3 years ago

4 0

The given statement is false.

As it is the dissolved gases, not the dissolved minerals, which are trapped in magma under tremendous pressure that provide the force for a volcanic eruption. The magma comprises dissolved gases that offers the driving force, which makes the majority of volcanic eruptions.

As magma reaches towards the surface and the pressure reduces, the gases get discharged from the liquid part of the magma and continue to move upward and finally get discharged into the atmosphere.

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3 years ago

A sample of argon gas is at a pressure of 1.725x10^4 kPa and a temperature of 24°C in a rigid 20 L tank. How many moles of argon

Paraphin [41]

To find how many moles of the gas you can use ideal gas formula. Remember to change the temperature unit to Kelvin. Since the pressure using kpa, the constant used would be 8.314 kpa*L / mol*K
PV=nRT
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n= 17,250 kpa * 20 / 8.314 * (24+273.15)K
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4 years ago

Describe the difference between atoms,molecules and compunds please help<br>

JulsSmile [24]

Answer:

Molecule is the general term used to describe any atoms that are connected by chemical bonds. Every combination of atoms is a molecule. A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds.

Explanation:

5 0

3 years ago

Read 2 more answers

The atomic number of nitrogen is 7. How many protons, neutrons, and electrons make up an atom of Nitrogen-15?

earnstyle [38]

<h2><u>Answer:</u></h2>

A nonpartisan iota of Nitrogen has a mass of 18. There are 7 protons in the core of this iota. What number of neutrons, complete electrons, and valence electrons are available

Nitrogen 15 has a nuclear mass of 15. The mass number is # protons in addition to # of neutrons, so for N-15 mass is 15 and the protons are dependably 7 so there must be 15-7=8 neutrons. N-15 has 7 electrons since it has 7 protons and p = e.

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3 years ago

The chemical hazard label indicates the class of hazard. It uses three major color-coded categories: Health (yellow), Flammabili

tresset_1 [31]

Answer: False

Explanation: The chemical hazard label indicates the class of harzard of chemical products. It appears on their Safety Data Sheet (SDS), which contains a lot of informations about these substances.

The chemical hazard label is divided into four colors and which one has a meaning (categorie) connected with a number, like:

Blue: Health hazard - If the chemical is deadly (4), extreme danger (3), hazardous (2), slightly hazardous (1) or a normal material (0).

Red: Fire hazard (flammability) - If the chemical has flash point bellow 73ºF (4), bellow 100ºF (3), above 100ºF not exceeding 200ºF (2), above 200ºF (1) or will not burn (0).

Yellow: Reactivity (it can be related to instability) - If the chemical may detonate (4), shock and heat may detonete it (3), if it can suffer a violent chemical change (2) or unstable if heated (1) or if it is stable (0).

White: Specific hazard - If the chemical is acid (ACID) or alkali (ALK), for example.

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3 years ago