1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
neonofarm [45]
2 years ago
14

Rolls of foil are 300mm wide and 2.020mm thick. (The density of foil is 2.7 g/cm^3). What maximum length of foil can be made fro

m 1.40 kg of foil?
Chemistry
1 answer:
horrorfan [7]2 years ago
5 0

Answer:  8556 mm, or 855.6 cm (8560 mm to 3 sig figs)

Explanation:  Convert mm to cm by dividing by 10 (1cm/10mm)

Find the area of the foil face in cm^2 (30cm*0.2020cm) = 0.606 cm^2

Calculate the volume occupied by 1.40 kg of foil in cm^3.  1.40kg = 1400g

1.400g/(2.7 g/cm^3) = 518.5 cm^3 for 1.40 kg Au

   Volume = Area (of the face) * Length  

We want Length:

Length = Volume/Area

L = (518.5 cm^3/0.606 cm^2)

L = 855.6 cm (8556 mm)  Round to 3 sig figs (856 cm and 8560 mm)

You might be interested in
A sample of water at 20 degrees c contains what bonds
vladimir2022 [97]
Covalent and hydrogen bonds

3 0
3 years ago
Which one of the following is a correct representation of an alpha particle?
Alex Ar [27]

Answer:

₂He⁴  

Explanation:

Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4  and atomic number less than 2 as compared to parent atom the starting atom.

Properties of alpha radiation:

Alpha radiations can travel in a short distance.

These radiations can not penetrate into the skin or clothes.

These radiations can be harmful for the human if these are inhaled.

These radiations can be stopped by a piece of paper.

₉₂U²³⁸   →   ₉₀Th²³⁴  + ₂He⁴  + energy

6 0
3 years ago
ATP is a molecule used for energy transport inside the cell. The components of ATP are a nitrogen-containing base, a pentose sug
Zinaida [17]

Answer:

nucleic acid

Explanation:

ATP -

In the living organisms it is a very important source of energy for various biological processes like chemical synthesis , nerve impulse propagation and contraction of muscles , is referred to as Adenosine triphosphate ( ATP ) .

ATP is a nucleic acid , which is a single chain nucleotide , which is composed of ribose sugar along with three phosphate groups .

ATP is also known as the battery of the cell.

Hence , from the given information of the question ,

The correct term is nucleic acid.

5 0
3 years ago
Which of the following acts as a catalyst in catalytic converters?
Serhud [2]

Answer:

B. Metal

Explanation:

The catalyst used in the converter is mostly a precious metal such as platinum, palladium and rhodium. Platinum is used as a reduction catalyst and as an oxidation catalyst. Although platinum is a very active catalyst and widely used, it is very expensive and not suitable for all applications.

Hope it helps plz mark brainlist :)

5 0
3 years ago
Read 2 more answers
What mineral is the hardest known substance in nature?
shusha [124]
The mineral that is the hardest known substance in nature is a diamond. 
Hope this helps. 



3 0
3 years ago
Read 2 more answers
Other questions:
  • A gas has a volume of 25.6 L at a temperature of 278 K. What will be the new temperature, in C, if
    14·1 answer
  • What term describes a mixture of 42 percent gold, 20 percent silver, and 38 percent copper?
    7·1 answer
  • Please help I will mark Brainly!
    12·1 answer
  • Rank each of the following compounds in decreasing order of reactivity towards Friedel-Crafts alkylation. Most reactive = 1; if
    5·1 answer
  • Why does earth’s rotation axis lean toward the sun for only one-half of its orbit?
    9·1 answer
  • You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the rea
    5·1 answer
  • Considering the side chain of each of the amino acids at pH 7.4, is that amino acid classified at neutral, basic, or acidic? You
    7·1 answer
  • I need numbers 6 and 8..
    13·1 answer
  • Why is thre no gas bubble whene there is citric acid?answer all the questions in detail.​
    12·1 answer
  • Check all reasons why a book was used.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!