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3 years ago

This is a group 2 element that is called the alkaline earth metals. It burns with a very bright light

Chemistry

1 answer:

erica [24]3 years ago

7 0

the alkaline eart metal s are

Beryllium

Magnesium

calcium

Strontium

barium

out of these Magnesium reacts with oxygen and produces bright light due to formation of MgO

all other metals also form oxides but the oxide of Mg is brightest

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What elements makeup Mars' atmosphere?

Genrish500 [490]

Answer:

Carbon dioxide or co^2

Explanation:

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3 years ago

Burning one gallon of gasoline releases 20 pounds of CO2 into the air. Harry’s compact car can travel 25 miles on one gallon of

son4ous [18]

There are several information's already given in the question. Based on those information's, the answer can be easily deduced.
Amount of gasoline required by Harry's car to travel 25 miles = 1 gallon
Then
amount of gasoline required
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3 years ago

Angiosperms produce brightly colored blooms and sweet-smelling flowers. Why have angiosperms developed these adaptations? A. to

blsea [12.9K]

Answer:

Explanation:

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2 years ago

Why do metals lose shine but gold<br> does not?

morpeh [17]

Because <span>Gold is a very inert metal, and won't really react with oxygen in the air.

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3 years ago

Read 2 more answers

Propane reacts with 3.15moles of oxygen how much propane reacts with oxygen

Inessa [10]

27.7g

Explanation:

Given parameters:

Number of moles of oxygen = 3.15moles

Unknown:

Mass of reacting propane = ?

Solution:

Equation of the reaction:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

We work from the known to the unknown parameters.

The known in this expression is the number of moles of oxygen.

In the reaction:

5 moles of oxygen gas reacts with 1 mole of propane

3.15 mole of oxgen gas will react with $\frac{3.15}{5}$ = 0.63moles

Number of moles of reacting propane gas is 0.63moles

To find the mass;

mass = number of moles x molar mass = 0.63 x molar mass

molar mass of propane = (3 x 12) + (8x1) = 44g/mol

mass of propane = 0.63 x 44 = 27.7g

Learn more:

Combustion reaction brainly.com/question/6126420

#learnwithBrainly

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3 years ago