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3 years ago

An empty beaker weighs 32.4257 grams. A 10 ml pipet sample of an unknown liquid is

Chemistry

1 answer:

pishuonlain [190]3 years ago

5 0

I thrush udnendhnd nsndndndnd 10

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Difine the term compound

AlexFokin [52]

Answer:

Its when like two pure substances are like combined into one.

Explanation:

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3 years ago

If z = 4.0 and y = 9.6, what is the value of x?

krok68 [10]

Answer:

The value of x will be "1.4".

Explanation:

The given values are:

y = 9.6

z = 4.0

As we know,

The relation between x, y and z is:

⇒ $z = \frac{y}{x}$

and,

⇒ $x=\frac{y}{z}$

On substituting the given values, we get

⇒ $=\frac{5.6}{4.0}$

⇒ $=1.4$

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3 years ago

The strength of a covalent bond depends upon the size of the atoms and the bond order. In general short bonds are strong bonds.1

Oksana_A [137]

Answer:

Bond energy of (A) C≡C > (B) C=C

and, (C) C=N > (D) C-N

Explanation:

Bond energy refers to the amount of energy required to break a bond or the energy released when a bond is formed. Bond energy of a covalent bond suggests the bond strength of the chemical bond and depends on the bond length and bond order of the chemical bond.

The bond energy of a chemical bond increases with the bond order and decreases with the bond length. As, length of a bond decreases with increase in the bond order.

First pair: (A) C≡C (B) C=C

The bond order of C≡C - 3, the bond order of C=C - 2

Since the bond order: C≡C > C=C

Bond length: C≡C < C=C

Therefore, bond energy of (A) C≡C > (B) C=C

Second pair: (C) C=N (D) C-N

The bond order of C=N - 2, the bond order of C-N - 1

Since the bond order: C=N > C-N

Bond length: C=N < C-N

Therefore, bond energy of (C) C=N > (D) C-N

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3 years ago

A report was created that outlined the outbreak of a disease called fungal meningitis among patients who received contaminated s

lianna [129]

Answer:

the centers for disease control and prevention

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3 years ago

PLEASE HELP

victus00 [196]

Answer:

A restoration

Explanation:

the action of returning something to a former owner, place, or condition.

7 0

2 years ago

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