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mylen [45]
3 years ago
12

When a volcano erupt,what suggestion can you give to those people living near in the area.

Chemistry
2 answers:
avanturin [10]3 years ago
8 0

Answer:

use a mask

Explanation:

thats all I can help

dlinn [17]3 years ago
4 0
A. The mask will be used to help the person evacuating avoid getting ash in their lungs
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Calculate the mass of water produced when 1.92 g of butane reacts with excess oxygen.
never [62]
C4h10+6.5o2=4co2+5h2o
moles of butane=1.92/58=0.0331 moles
moles of water=0.1655 moles\
as the butane and water has 1 is to 5 molar ratio
0.1655=mass/18
mass=2.98 g
mass of water produced = 2.98 g
4 0
3 years ago
I need the answer please
Morgarella [4.7K]
I personally thinks it’s A
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3 years ago
EL hidroxido de sodio reacciona con el sulfato de hierro (II) para formar sulfato de sdio e hidroxido ferroso. Si se hace reacci
Oduvanchick [21]

Answer:

280.8 g

Explanation:

Definimos la reaccion:

2NaOH +  FeSO₄  →  Na₂SO₄  +  Fe(OH)₂

Como tenemos la masa de NaOH, asumimos que el sulfato de hierro (II) es el reactivo en exceso.

Definimos masa de reactivo: 250 g . 1mol / 40g = 6.25 mol

2 moles de NaOH producen 1 mol de hidroxido ferroso

Entonces 6.25 moles producirán, la mitad (6.25  . 1) /2 = 3.125 moles

Convertimos los moles a masa:

3.125 mol . 89.85 g/mol = 280.8 g

7 0
3 years ago
Which of these reactions is an addition reaction?
Akimi4 [234]

Answer:

https://smartlyhelper.com/chemistry/question14062929

I found the answer in this link

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2 years ago
Which of these factors influences air temperature?
Ksju [112]

Answer:

D

Explanation:

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