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
9966 [12]
2 years ago
11

Which item is made from a synthetic material?

Chemistry
2 answers:
miss Akunina [59]2 years ago
8 0

Answer: Option (a) is the correct answer.

Explanation:

A synthetic material is an artificial material and they are not obtained naturally.

We can also say that synthetic material are man-made. For example, nylon, rayon, acrylic etc.

Leather jackets are made up of animal skin. Hence, they are not synthetic material. Paper is obtained from plants and hence, it is not man-made. Wicker basket is made from material obtained from plants or trees. Therefore, wicker basket is not man-made.

Thus, we can conclude that out of the given options cotton pants is made from a synthetic material.

seropon [69]2 years ago
7 0
First one because Common synthetic materials are nylon, acrylic, polyester, carbon fiber, rayon and spandex. Synthetic materials are made from chemicals and are usually based on polymers. They are stronger than natural and regenerated materials.
You might be interested in
What is the answer to y=1/2-x+1​
7nadin3 [17]

Answer:

X= -Y + 2/2     Y=-X + 3/2

Explanation:

I don't know how to simplify it anymore. You would get x=-y+3/2 and y=-x+3/2

4 0
3 years ago
Read 2 more answers
I will give the brainliest for who answer this questio but no guessing
xz_007 [3.2K]
IVA: nonmetal/other metals VIIA:halogens VIII: Nobel Gases
8 0
3 years ago
Read 2 more answers
A chemist dissolves 0.096 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 6-mL
scoray [572]

Answer:

(A) 4.616 * 10⁻⁶ M

(B) 0.576 mg CuSO₄·5H₂O

Explanation:

  • The molar weight of CuSO₄·5H₂O is:

63.55 + 32 + 16*4 + 5*(2+16) = 249.55 g/mol

  • The molarity of the first solution is:

(0.096 gCuSO₄·5H₂O ÷ 249.55 g/mol) / (0.5 L) = 3.847 * 10⁻⁴ M

The molarity of CuSO₄·5H₂O is the same as the molarity of just CuSO₄.

  • Now we use the dilution factor in order to calculate the molarity in the second solution:

(A) 3.847 * 10⁻⁴ M * 6mL/500mL = 4.616 * 10⁻⁶ M

To answer (B), we can calculate the moles of CuSO₄·5H₂O contained in 500 mL of a solution with a concentration of 4.616 * 10⁻⁶ M:

  • 4.616 * 10⁻⁶ M * 500 mL = 2.308 * 10⁻³ mmol CuSO₄·5H₂O
  • 2.308 * 10⁻³ mmol CuSO₄·5H₂O * 249.55 mg/mmol = 0.576 mg CuSO₄·5H₂O
5 0
3 years ago
25) How many unpaired electrons would you expect for the complex ion: [Co(OH)6]4-? A) 0 B) 5 C) 3 D) 1 E) 2 Answer: E
Mama L [17]

Answer:

Everyone, this is Ricky. And today we're working on Problem 51 from Chapter 22 and we're gonna determine the number of UNP. Aired electrons for the complex island of CEO seal for minus two I first up, let's determine the charge of art metal ion. So cue is our charge plus four minus one, which is a charge of each chloride ion. The overall charge of minus two Hugh is equal to plus two. I hope this will help

4 0
2 years ago
1. At STP, you have 0.101 g of carbon dioxide gas. What is the volume of this gas?
Ber [7]

Answer:

1) A. 0.0515 L

2) B. 35.504 L

3) B. 422.446 g

Explanation:

At STP, you have 0.101 g of carbon dioxide gas. What is the volume of this gas?

Step 1: Data given

Mass of   CO2 gas = 0.101 grams

Molar mass of CO2 = 44.01 g/mol

STP = 1 atm and 273K

Step 2: Calculate moles CO2

Moles CO2 = mass CO2 / molar mass CO2

Moles CO2 = 0.101 grams / 44.01 g/mol

Moles CO2 = 0.0023 moles

Step 3: Calculate the volume

For 1 mol at STP we have 22.4L

0.0023 moles we have 22.4L * 0.0023 = 0.0515 L

<u>Option A is correct</u>

<u />

You have 27g of ammonia (nitrogen trihydride) at STP. What is the volume? Hint...you will first need to convert mass of ammonia to moles!

Step 1: Data given

Molar mass of NH3 = 17.03 g/mol

Mass of NH3 = 27.00 grams

STP = 1 atm and 273K

Step 2: Calculate moles NH3

Moles NH3 = 27.00 grams / 17.02 g/mol

Moles NH3 = 1.585 moles

Step 3: Calculate volume

For 1 mol at STP we have 22.4 L

For 1.585 moles we have 22.4 * 1.585 = 35.504 L

<u>Option B is correct</u>

<u />

Which of the following represents the MASS of 215 L of dinitrogen monoxide at STP? Hint...find the # of moles of this gas and then use the molar mass to go from moles to mass!

Step 1: Data given

Volume = 215 L

STP = 1 atm and 273 K

Molar mass of N2O = 44.01 g/mol

Step 2: Calulate moles N2O

22.4L = 1 mol at STP

215 L = 215 / 22.4 = 9.60 moles

Step 3: Calculate mass N2O

Mass N2O = moles N2O * molar mass N2O

Mass N2O = 9.60 moles* 44.01 g/mol

Mass N2O = 422.446 g

<u>Option B is correct</u>

3 0
3 years ago
Other questions:
  • Aqueous solution of copper sulphate is acidic . Why?
    9·1 answer
  • Which statement describes the dependent variable?
    7·1 answer
  • Instructions:Select the correct answer.
    6·1 answer
  • What is the (a) frequency and (b) wavelength (in nm) of a source of purple light at the edge of the visible light spectrum?
    10·1 answer
  • Compare the charges and masses of protons neutrons and electrons
    6·1 answer
  • Atoms of elements that are in the same group have the same number of
    8·1 answer
  • What is the name of the compound with the formula NH HCO3 ?
    10·1 answer
  • - Write down Rutherford's atomic model with diagram .also write down defects of Rutherford's atomic model. - write down neil boh
    13·1 answer
  • PLEASE HELP!! PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE
    13·2 answers
  • Which one is the answer?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!