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Alina [70]
3 years ago
10

Why is powdered magnesium used in fireworks,rather than magnesium ribbon?​

Chemistry
2 answers:
Basile [38]3 years ago
7 0
It is easier to mix with other chemicals and it gives an faster and easier reaction
blsea [12.9K]3 years ago
3 0

Answer:

<em>Because it will give a faster reaction.</em>

Explanation:

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1. A container holds four times as many moles of CO2 as O2. If the total pressure in the container is 20. atm,
Hitman42 [59]

Answer:

Partial pressure of CO2 = 16 atm

Explanation:

Total number of moles of gases = 4+1 = 5 moles

Mole fraction of CO2 = 4/5

Partial pressure of CO2 = mole fraction of CO2 × total pressure

Partial pressure of CO2 = (4/5) × 20

Partial pressure of CO2 = 16 atm

7 0
2 years ago
Which gas occupies the highest volume at STP?
Vedmedyk [2.9K]

The gas, 2 mol of H2, occupies the highest volume at STP since at STP the volume of this gas is approximately 44.8 mol as compared to other options this has the greatest amount.

7 0
3 years ago
Read 2 more answers
Oxygen has an electronegativity of 3.4, phosporus has an electronegativity of 2.2 The bond between them is
Ipatiy [6.2K]

Answer:

B. polar covalent

Explanation:

7 0
3 years ago
Does the volume change if a ballon is put in a freezer
Lorico [155]
It gets smaller so yes
6 0
3 years ago
Mass
DiKsa [7]

The molecular formula =C₆H₁₂O₆

<h3>Further explanation</h3>

Given

6.00 g of a certain compound X

The molecular molar mass of 180. g/mol

CO₂=8.8 g

H₂O=3.6 g

Required

The molecular formula

Solution

mass C in CO₂ :

= 1.12/44 x 8.8

= 2.4 g

mass H in H₂O :

= 2.1/18 x 3.6

= 0.4 g

Mass O in compound :

= 6-(2.4+0.4)

= 3.2 g

Mol ratio C : H : O

= 2.4/12 : 0.4/1 : 3.2/16

= 0.2 : 0.4 : 0.2

= 1 : 2 : 1

The empirical formula : CH₂O

(CH₂O)n=180 g/mol

(12+2+16)n=180

(30)n=180

n=6

(CH₂O)₆=C₆H₁₂O₆

7 0
3 years ago
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