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Vadim26 [7]
4 years ago
13

Which of the following are molecular solids and which are covalent solids?

Chemistry
1 answer:
erastova [34]4 years ago
4 0

Answer:

Covalent solids: Se8, Si, C

Molecular solids: HBr, CO2, P4O6, SiH4

Explanation:

A covalent solid consists only of one type of atom infinitely linked by covalent bonds to form a three dimensional rigid solid while a molecular solid consists of discreet molecules held together by intermolecular forces.

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Fe (s) + S (I) --> Fes (s) In the experiment above, 7.62 g of Fe
Natali [406]

Answer:

B

Explanation:

calculation

6 0
3 years ago
Proton-alpha: "One time I lived in an environment where next door lived identical twins, Proton-beta-1 and Proton-beta-2. Boy, d
Mashcka [7]

Answer:

Explanation:

C) What is the multiplicity of Proton-alpha's signal in this scenario when there are 2 identical protons "next door"?

Based on n+1 rule. Here n=2 (identical beta protons).

2+1=3

So the multiplicity of alpha proton is triplet, .

D) For molecules containing only single bonds (we'll discuss the influence of double bonds in a future lecture), what is the adjective that describes the position of protons that split a "next door neighbor's" signal?

    The meaning of the adjective is this: the multiplicity of beta protons is singlet only (no spliting) in absence of alpha proton . But beta protons splits as doublet (n=1) in the presence of alpha proton,

E) How many bonds connect these "splitting next door neighbors"?

There are 3 bonds in between alpha and beta protons in a molecule.

F) What is the multiplicity of the Proton-betas' signal?

Following the  n+1 rule, here n=1 (1 alpha proton) so 1+1=2. Hence it is  a doublet.

7 0
4 years ago
Which of the following statements about enzymes is true?. a. Enzymes are able to heat up molecules so that they can react.. b. E
taurus [48]
The answer is C as enzymes are biological catalysts that act on a substrate such as starch if the enzyme were amylase

hope that helps 
5 0
3 years ago
Read 2 more answers
Find the volume of 20g of benzene
sergey [27]

(d) Density of Benzene: 0.8786 g/cm cubed

(m) Mass: 20.00g

Formula to solve (v) volume of benzene: V=m/d

V=20g / 0.8786g/cm cubed

Answer: Volume of benzene is: 22.8 cm cubed  


Explanation: Well, density is mass divided volume. In this, it is what the volume is. All you need is mass divided by density. Hope this helps!

6 0
4 years ago
I do not understand this question
boyakko [2]

Answer:

the answer should be c

Explanation: why because 37/19 k toward 0+1e +37/18 AR is equivalent to the beta decay and it describes the best beta decay in the formula.

6 0
3 years ago
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