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kipiarov [429]
2 years ago
11

The metal which burns with a white dazzling flame is:

Chemistry
2 answers:
Natali5045456 [20]2 years ago
6 0

Answer:

b) Magnesium

Explanation:

According to G double O gle, it doesn't react with cold water but reacts to hot water/steam to form magnesium. Hydroxide and Hydrogen gas is released into the air!

7nadin3 [17]2 years ago
5 0

Answer:

<h3><u>Magnesium</u></h3>

Magnesium burns with a dazzling white flame to form magnesium oxide a powdery mass.

Explanation:

<h2>Hope this helps you !! </h2>
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All of the food that we eat, liquids that we drink and medications that we take are
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The half life for the decay of radium is 1620 years what is the rate constant
Lilit [14]
Decay is a type of degradation reaction and thus is considered a first order reaction. thus the formula goes like this.
 
rate constant= 0.693/half life

so here...

rate constant= 0.693/1620 year^-1 
3 0
3 years ago
13. Fill in the following table
Mandarinka [93]

Answer:

Potassium Bromide = KBr

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Explanation:

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4 0
3 years ago
Whats the effect?
scZoUnD [109]

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Explanation:

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6 0
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Read 2 more answers
If 12.4 mol of Ne gas occupies 122.8 L, how many mol of Ne would occupy 339.2 L under the same temperature and pressure? Record
8090 [49]

Answer:

3.43×10¹ mol

Explanation:

Given data:

Initial number of  moles = 12.4 mol

Initial volume = 122.8 L

Final number of moles = ?

Final volume = 339.2 L

Solution:

The number of moles and volume are directly proportional to each other at same temperature and pressure.

V₁/n₁  =  V₂/n₂

122.8 L/ 12.4 mol  =  339.2 L / n₂

n₂ = 339.2 L× 12.4 mol  / 122.8 L

n₂ = 4206.08 L.mol /122.8 L

n₂ = 34.3mol

In scientific notation:

3.43×10¹ mol

7 0
3 years ago
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