All categories

4 years ago

Which of the following became a major drawback to using ice blocks for cooling food? availability expense unsanitary ice storage

2 answers:

7 0

Ice was soon being harvested from contaminated water sources. Microbes in the ice invaded the food and people became ill
so unsanitary ice is your answer i hope this helps

Mashcka [7]4 years ago

5 0

Answer: Option (d) is the correct answer.

Explanation:

Since it is known that ice blocks used to cool food items are prepared or manufactured by shopkeepers. So, the water used to prepare ice might not be pure and therefore, we can say that the water used in these blocks is contaminated.

Hence, when we place out food on these ice bags then the food might also become unhygenic in nature.

Thus, we can conclude that ice storage became a major drawback to using ice blocks for cooling food.

You might be interested in

Pls help me ASAP thank you!!

Stolb23 [73]

Sorry i cant even read that

7 0

3 years ago

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 40.0 gram sample of this isotope is allowed to decay

Ivahew [28]

Answer: 2.5 grams

Explanation:

5 0

3 years ago

Read 2 more answers

Binary molecular (covalent) compounds are formed as the result of a reaction between two nonmetals. Although there are no ions i

ollegr [7]

Answer:

Binary molecular compounds are the compounds consisting of two non-metallic elements. Examples of binary molecular compounds include: NO2, HCl, HF, P2O5 e.t.c.

Rules For Naming Binary Molecular Compounds

Naming binary molecular compounds is quite easy,

1. The first element is given its name.

2. The second element is given its root name (such as, hydro, carb,ox, chlor e.t.c.) followed by suffix ide.

Name of N2O4 - Dinitrogen tetraoxide

Chemical Formula of;

iodic acid: HI

disulfur trioxide: S2O3

dinitrogen monoxide: N2O

hydrofluoric acid: HF

Difference between Binary acid and an oxyacid

An oxyacid is an acid consisting of an oxygen atom bonded to a hydrogen atom and at least one other non-metallic element. Examples of oxyacids include HNO3, H2SO4 e.t.c.

Binary acids are the acids consisting of hydrogen atom bonded to a non-metallic element. Examples include HF, HCl, HI e.t.c.

7 0

4 years ago

Read 2 more answers

The mass of an unidentified rock is 40 grams. Students determine the volume of the rock by placing the rock in a cylinder with w

insens350 [35]

Answer:

A. Coal

Explanation:

$Volume_{rock}$ = water displaced by rock

Water displaced by rock = volume of water after rock is dropped into the cylinder - volume of water before the rock was dropped into the water

Water displaced by the rock = 180 ml - 150 ml = 30 ml

$Volume_{rock} = 30 ml$

Density of rock:

40 grams => 30 ml

x grams => 1 ml

Cross multiply

1*40 = 30*x

40 = 30x

40/30 = 30x/30

1.3 = x

Density of rock = 1.3 g per 1 ml

Recall: 1 ml = 1 cm³

Therefore,

Density of the rock = 1.3 g/cm³

1.3 g/cm³ falls within the range of 1.1 - 1.4 g/cm³

Therefore, the rock is identified as Coal.

7 0

3 years ago

To which period does an element belong if it has its 3d orbitals filled

kotegsom [21]

fourth period

The third period is similar to the second, except the 3s and 3p sublevels are being filled. Because the 3d sublevel does not fill until after the 4s sublevel, the fourth period contains 18 elements, due to the 10 additional electrons that can be accommodated by the 3d orbitals.

3 0

2 years ago