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Paul [167]
3 years ago
5

Three useful applications of alkaline earth metals

Chemistry
1 answer:
svetlana [45]3 years ago
7 0
Alkaline earth metals refer to a group of elements in the periodic table. They include beryllium, magnesium, calcium, strontium, barium, and radium. Main uses of these elements are given below. Beryllium: It is used in small amounts to make copper beryllium alloy that are very strong and hard.
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Give structural formula of ethylene. What type of bond is found in between carbon and hydrogen? Why is the bond between carbon a
Sav [38]

Answer:

See explanation

Explanation:

The structure of ethylene is shown in the image attached. The two carbon atoms have a double covalent bond between them.

The two carbon atoms are sp2 hybridized. The bond between them is a covalent bond, there is one pi bond and one sigma bond between the carbon atoms. Between carbon and hydrogen, there are covalent bonds also. The covalent bonds are sigma bonds.

The pi bonds between carbon atoms is weaker than the sigma bonds between the carbon atoms. This is because, the side-by-side overlap the p orbitals in a pi bond is less effective than the end-to-end overlap of a sigma bond.

4 0
3 years ago
Which phase change is an example of an exothermic process?
Ivenika [448]
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3 0
4 years ago
If a hot air balloon has an initial volume of 1000 L at 50 ∘C, what is the temperature (in ∘C) of the air inside the balloon if
puteri [66]
<span>(P1/T1) = (P2/T2)


T must be in kelvin first!</span>
3 0
3 years ago
2H2 + O2 --&gt; 2H2O can be classified as what type of reaction?
Sveta_85 [38]
Combustion reaction
Key: O2
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5 0
3 years ago
Read 2 more answers
4NH3+5O2-4NO+6H2O<br>how many moles of NH3 must react to produce 5.0 moles of NO?​
tresset_1 [31]

Answer: 5.0 moles

Explanation:

From the equation, we see that for every 4 moles of ammonia consumed, 4 moles of nitrogen monoxide are produced (we can reduce this to moles of ammonia consumed = moles of nitrogen monoxide produced).

This means that the answer is <u>5.0 mol</u>

7 0
2 years ago
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