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
Alenkasestr [34]
4 years ago
15

Safety glasses are worn in the lab for

Chemistry
2 answers:
zavuch27 [327]4 years ago
4 0
Safety glasses should be worn any time you are doing an experiment, especially one that involves chemicals or chemical reactions. They prevent chemicals or other materials from getting on or in your eye, and can prevent anything from mild discomfort to permanent blindness.

Some pairs of safety glasses have magnifying glasses on them, similar to bifocals. They can be used to more carefully examine something in an experiment.
alexdok [17]4 years ago
4 0
Protecting your eyes from chemicals
You might be interested in
Sodium sulfate reacts with carbon to produce the products sodium sulfide and carbon monoxide. Identify the reducing agent in the
Maslowich
The reducing agent will itself be oxidized.
The oxidation number of carbon goes form 0 to +2. Therefore, it is the reducing agent.
6 0
4 years ago
Read 2 more answers
Describe and compare the building blocks, general structires and biological functions of carbohydrates lipids proteins and nucle
Nata [24]

Answer:

Explanation:

Carbohydrates are basically composed of Carbon, Hydrogen and Oxygen having the general formula CnH2nOn.

There are 3 types of carbohydrates which are dependent on the number of "n"

Monosaccharides which are n>3 (Triose) are the aldose and ketose.

They are the simpleat and smallest form and they are Glucose, fructose and galactose

Disaccharides are structure of the combination of the monosaccharides by glycosidic bond and they are sucrose, lactose, maltose etc

Polysaccharides are the largest and insoluble form of carbohydrates. They are cellulose, starch, glycogen etc.

Lipids(triglycerides) are solid fats or series of repeated fats at room temperature, they are insoluble in water both soluble in some organic solvents. They are also composed of glycerides (3 molecules). Its structure is composed of two parts, the soluble part composing of the -COOH group and the insoluble part that can be saturated or unsaturated hydrocarbon chain

Saturated fats - CH3(CH2)nCOOH

Their types are phospholipids, glycolipids etc

Proteins are polymers of peptides called polypeptides. The bond linking the structure together is called a peptide bond (-CONH-). They form chains of amino acid.

There are 4 levels of protein structures and they are

The primary structure defines the basic straight chain structure of an amino acid. They form the basis of genetic mutation.

Secondary structure involves the folding of this chain into alpha helix or beta pleated.

Tertiary structure is a 3-D structure that involves the hydrophobic and Hydrophilic parts pf the structure. The hydrophobic part apreads outwards while the hydrophyllic parts curve inwards by the action of van der waals forces.

Tertiary structure in this case is the example of the Haemoglobin

Nucleic acids is the building block for RNA and DNA (ribo- and Deoxyribonucleic acid). This is composed of a nitrogenous base which can either be purine or pyrimidine bases, a ribose sugar (5- Carbon sugar and phosphate group

The bond holding the nucleotides together is called phosphodiester bond.

6 0
4 years ago
There are many methods used to obtain energy for use in our our daily lives. Some of these methods have possible environmental c
Len [333]
(A)wind and solar should be the answer

8 0
3 years ago
Question 5<br> 5. CFC's break down<br> Ozone<br> carbon dioxide<br> Oxgygen<br> nitrogen
Vedmedyk [2.9K]

Answer:

ozone. CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are able to destroy ozone molecules.

4 0
4 years ago
Read 2 more answers
Please show all work chemistry thanks 2,3 and 4
nikitadnepr [17]

Answer: 2) 0.21 mole H2O

3) 0.50 mole K2O

4) 123 g Ca( NO3)2

Explanation: solution attached.

For number 2 to find the number of moles of H2O just divide the given in molecules with the Avogadro's number.

For 3 convert grams of K2O to moles by using 1 mole of K2O is equal to the molar mass of K2O

For number 4 moles to grams. Same process with number 3

3 0
3 years ago
Other questions:
  • What is the volume, in mL, of 0.50 moles of ammonia (NH3) at STP?
    5·1 answer
  • Why pluto is removed from planet?<br>​
    13·2 answers
  • An atom of boron has an atomic number of 5 and an atomic mass of 11. The atom contains
    15·1 answer
  • ¿A qué grupo pertenecen los átomos de Z = 8, Z= 36 y Z=39? ¿Cuántas capas de electrones tiene cada uno? ¿Cuántos electrones harí
    11·1 answer
  • Someone help me , quick​
    9·1 answer
  • In this simulation what do you think the bread and cheese separately represent, the atom or the molecule?
    8·1 answer
  • Pls pls help me me pls
    9·1 answer
  • When a particle is moving fast it has a lot of kinetic energy in it. ?
    7·1 answer
  • A 50.0 N force is applied to an object travels with a constant velocity of 20m/s, calculate
    8·1 answer
  • Gravity relates to a stream's ability to erode and deposit material by causing water to flow faster down a steep slope. True or
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!