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ankoles [38]
3 years ago
8

Why are some volcanic gases blown away and others are not ??

Chemistry
2 answers:
devlian [24]3 years ago
8 0

Answer:

Option (B) Because of the density of the gas.

Explanation:

The magma isn't very liquid-y, so it is able to trap gases in the depths, allowing the pressure inside the volcano to build. When these volcanoes erupt, they explode with a bang. The more explosive volcanoes are kind of like soda bottles with lots of trapped gas.

Rasek [7]3 years ago
3 0

Answer:

b because of the density of the gas

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A car with a mass of 1,100 kg is moving with a velocity of 30 m/s due east . What is the moment?
dexar [7]
Momentum = (mass) x (velocity) = (1,100) x (30) =

33,000

kg-m/sec due east

6 0
2 years ago
P4O10(s) = -3110 kJ/mol H2O(l) = -286 kJ/mol H3PO4(s) = -1279 kJ/mol Calculate the change in enthalpy for the following process:
mash [69]

Answer:

-290KJ/mol

Explanation:

ΔHrxn = ΔHproduct - ΔHreactant

ΔHrxn= 4ΔHH3PO4 - {6ΔHH2O + ΔHP4O10}

ΔHrxn = 4(-1279) - [6(-286) - 3110]

= -5116 -(-1716-3110)

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= -5116 + 4826 = -290KJ/mol

6 0
2 years ago
If one pound is the same as 454 grams, then convert the mass of 78 grams to pounds.
LiRa [457]

Answer:

0.17 lb

Explanation:

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If you want additional help with chemistry or another subject for FREE, check out growthinyouth.org.

4 0
3 years ago
If you have 400 grams of a substance that decays with a half-life of 14 days, then how much will you have after 56 days? To help
alisha [4.7K]

Answer:

25 grams

Explanation:

You strat off with 400 grams of your substance. By day 14, half has dcayed and you only have 200 grams left. By day 28, there are 100 grams of the substance. On day 42, there are 50 grams left. Finally, on day 56, the substance has been through four half-lives and 25 grams remain.

3 0
2 years ago
Which of the following are likely to form a covalent bond?
Marat540 [252]

hydrogen and oxygen atoms

Explanation:

this is because they are non metals and there will be sharing of electrons between the two atoms forming the bond

4 0
2 years ago
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