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IgorC [24]
2 years ago
7

Which of the following molecules can serve as both a hydrogen bond donor and acceptor? (Select all that apply.) a) CH30PO32. b)

(CH3CH2)20 c) NH, CONHd) CH30H e) NH3
Chemistry
1 answer:
Hatshy [7]2 years ago
4 0

Answer:

NH3

Explanation:

A hydrogen bond donor is the supplier of the hydrogen atom that is involved in the hydrogen bonding interaction.

A hydrogen bond acceptor is the electronegative atom that 'accepts' the hydrogen in the hydrogen bond. Such electronegative atoms usually possess an unshared pair of electrons such as nitrogen.

We can see from the above definitions that NH3 is able to act in the capacity of a hydrogen bond donor(due to the presence of three N-H bonds) or as a hydrogen bond donor due to presence of an unshared pair on nitrogen atom.

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A sample of gas has an intial volume of 22.8 L at a pressure of 1.65 atm. If the sample is compressed to a volume of 10.7 L, wha
almond37 [142]

 The  pressure  of the  gas  is 3.52 atm


<u><em>calculation</em></u>

This is calculated using the Boyle's  law  formula

that is  P1V1= P2V2  where;

P1 = 1.65   atm

V1 =22.8 L

P2 =? atm

V2  = 10.7 L


make P2 the subject of the formula by  dividing    both side by V2

P2 = P1V1 / V2

P2 = (1.65 atm x 22.8 l) / 10.7 L  =  3.52   atm

4 0
3 years ago
Decide which element probably forms a compound with oxygen that has a chemical formula most and least similar to the chemical fo
mafiozo [28]

Answer:

Most similar   -----  Lithium

Least similar   ----  Nitrogen

Explanation:

Cesium is an element on the periodic with the atomic number 133. It lies in group 1 (i.e., the alkali metals) and period 6 on the periodic table. The oxidation state of group 1 metals is +1. Cesium forms an oxide with oxygen as  Cs_2O.

The most similar compound to this chemical compound is Lithium because Lithium happens to be in the same group one metal with Cesium and forms the compound Li_2O with the oxygen

The least similar compound nitrogen due to fact that it is an oxide that is covalent in nature and lies between-group 3 -17  to form an NO_2 with oxygen.

8 0
3 years ago
A student pushes a 40-N block across the floor for a distance of 10 m.
Ganezh [65]
C I think but not due e
5 0
3 years ago
If 3 moles of a compound use 24 J of energy in a reaction, what is the A<br> Hreaction in J/mol?
erma4kov [3.2K]

Answer:

+8 J/mol

Explanation:

The following were obtained from the question:

Mole of the compound = 3 moles

Heat Energy used = 24J

Hreaction =?

The heat of reaction is the energy released or absorb during a chemical reaction. It is can obtained mathematically by the following equation:

Hreaction = Heat energy/mole

With the above equation, we can easily find the Hreaction for the question given as follow:

Hreaction = Heat energy/mole

Hreaction = 24J / 3mol

Hreaction = 8 J/mol

Since the compound used the energy, the Hreaction is +8 J/mol

8 0
3 years ago
Monkeys and bats have similar bone structure in their forelimbs. However, monkeys have longer forelimbs to use for climbing and
stich3 [128]
A monkey needs to use more force and strength than a bat when swinging and they can get more momentum to push forward. and bat needs shorter limbs so they don’t have much weight to carry when they are flapping their wings. they will go faster with less mass in their arms.
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