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
kap26 [50]
3 years ago
5

Why must contact lenses be removed before you enter a chemistry laboratory?

Chemistry
1 answer:
RUDIKE [14]3 years ago
6 0
The vapors of some chemicals used in the chemistry laboratory, especially isocyanates, can react and bond the contact lens to the eye.

(FYI - the family of isocyanates include Superglue..I wouldn't want to have been the person who discovered this unfortunate reaction!)
You might be interested in
Which condition must be met in order for an equation to be balanced?
olga55 [171]

Answer:

The elements in the reactants are the same as the elements in the products.

Explanation:

You can't have more or less elements or atoms, but you also can't just have the same number of atoms because then it could be different elements, which can't happen.

5 0
2 years ago
Read 2 more answers
Which is an example of a solution?
Rudiy27
The answer is C. Salt and water is a solution 
3 0
3 years ago
Read 2 more answers
Glucose, c6h12o6, is used as an energy source by the human body. the overall reaction in the body is described by the equation
Art [367]
Glucose is carbohydrate and a simple sugar that is very important to the human body.

Energy is produced for the cells in the body through the process of metabolism which oxidizes glucose to water, carbon dioxide, and some nitrogen compounds. 

The general chemical reaction equation for metabolism is:
 
C6H12O6 + 6O2 ---> 6CO2 + 6H2O 
4 0
3 years ago
What is the expected mass (in kg) of a 10 over 5 B isotope? 1 proton = 1.6726 × 10-27 kg 1 neutron = 1.6749 × 10-27 kg A.1.67 ×
Ira Lisetskai [31]
^{10}_5 B
An atom of this isotope contains 5 protons and 10-5=5 neutrons.

5 \times 1.6726 \times 10^{-27} + 5 \times 1.6749 \times 10^{-27} = \\
8.363 \times 10^{-27} + 8.3745 \times 10^{-27}= \\
16.7375 \times 10^{-27}= \\
1.67375 \times 10^{-26} \approx \\
1.67 \times 10^{-26}

The answer is A. 1.67 × 10⁻²⁶ kg.
8 0
3 years ago
If a sample of oxygen gas originally at from 171.4 K has its temperature increased to 288.4 K and
julia-pushkina [17]

Answer:

V₂ = 0.95 L

Explanation:

Given data:

Initial temperature of gas = 171.4 K

Final temperature of gas = 288.4 K

Final volume = 1.6 L

Initial volume = ?

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₁ = V₂T₁ /T₂

V₂ = 1.6 L × 171.4 K / 288.4 k

V₂ = 274.24 L.K / 288.4 K

V₂ = 0.95 L

6 0
2 years ago
Other questions:
  • DesperateDesperateDesperateDesperateDesperateDesperateDesperate
    13·1 answer
  • What precipitate, if any, forms when aqueous solutions of li2so4 and nai are mixed?
    6·1 answer
  • Need help with these questions for chemistry please I need the answers fast
    6·2 answers
  • Because of this difference in entropy change, the net entropy change of the entire system is ________ during a real isothermal e
    5·1 answer
  • What does an elements location tell us about the forces within an atom?
    5·1 answer
  • The______of water molecules and the hydrogen bonds between water molecules explain most of water's life-supporting properties.Th
    7·2 answers
  • When the forces acting on the object are balanced the object will?​
    6·1 answer
  • Which of the following types of energy does an object store in the bonds of atoms and molecules? (5 points)
    8·1 answer
  • 2 3 4 5 6 7 8 9 10
    8·1 answer
  • How much energy must be absorbed by 45.0g of water to increase its temperature from 83 0°C to 303.0°C?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!