All categories

2 years ago

Why diamond has a very high melting point than aluminium??

1 answer:

8 0

Each carbon atom is covalently bonded to four other carbon atoms. A lot of energy is needed to separate the atoms in diamond. This is because covalent bonds are strong, and diamond contains very many covalent bonds. This makes diamond's melting point and boiling point very high.

You might be interested in

Which one of the following electron transitions does not correspond to an absorbtion of a quanta of light?

ziro4ka [17]

N = 4 to n = 3 is the right answer, so it' none of the above

8 0

3 years ago

A transformer has 90 turns in the primary coil and 9 turns in the secondary coil If the output voltage is 6 V, what is the input

Afina-wow [57]

Answer:

60 V

Explanation:

From;

Vs/Vp = Ns/Np

Where;

Vs = voltage in the secondary coil = 6V

Vp = voltage in the primary coil= ??

Ns = number of turns in the secondary coil = 9

Np= number of turns in the primary coil = 90

6/Vp = 9/90

Vp= 90 * 6/9

Vp= 60 V

6 0

3 years ago

How do I solve this? please help and only respond with the answer/work. I will mark BRAINLIEST

Ulleksa [173]

Answer: I think the answer is 2.5 M.

Explanation: Formula: M = n/v

M= 10 mol / 4L

M= 2.5 M

4 0

2 years ago

A metal oxide with the formula mo contains 15.44% oxygen. in the box below, type the symbol for the element represented by m.

lana66690 [7]

<u>Answer:</u> The element represented by M is Strontium.

<u>Explanation:</u>

Let us consider the molar mass of metal be 'x'.

The molar mass of MO will be = Molar mass of oxygen + Molar mass of metal = (16 + x)g/mol

It is given in the question that 15.44% of oxygen is present in metal oxide. So, the equation becomes:

$\frac{15.44}{100}\times (x+16)=16g/mol\\\\(x+16)=\frac{16g/mol\times 100}{15.44}\\\\x=(103.626-16)g/mol\\\\x=87.62g/mol$

The metal atom having molar mass as 87.62/mol is Strontium.

Hence, the element represented by M is Strontium.

8 0

3 years ago

Read 2 more answers

Ca3(PO4)2 + 3H2SO4  3CaSO4 + 2H3PO4.

Dominik [7]

If anything isn’t obvious, don’t hesitate to ask me
Check the attached photo out...

4 0

2 years ago