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
SCORPION-xisa [38]
3 years ago
15

Identify one way Ultra Violet Rays can be harmful to humans? Thank you so much!

Chemistry
1 answer:
valina [46]3 years ago
6 0

Answer

It can Blind humans

Explanation:

You might be interested in
Acetylene gas C2H2 undergoes combustion to form carbon dioxide and water when it is used in the oxyacetylene torch for welding.
Elenna [48]

Answer:

The answer to your question is below

Explanation:

Reaction

                            C₂H₂ (g) + O₂(g)   ⇒   CO₂ (g)   +  H₂O (g)

                            Reactants         Elements         Reactants

                                    2                       C                       1

                                    2                       H                       2

                                    2                       O                       3

This reaction is unbalance

<u>Reaction balanced</u>

                        <u>   </u><u>2</u><u>C₂H₂ (g) +   </u><u>5</u><u>O₂(g)   ⇒   </u><u>4</u><u>CO₂ (g)   +  </u><u>2</u><u>H₂O (g)</u>

                            Reactants         Elements         Reactants

                                    4                       C                       4

                                    4                       H                       4

                                   10                       O                      10

Now, the reaction is balanced

a) Calculate the molecular mass of acetylene and water

Acetylene = (12 x 2) + (2) = 26 g

Water = (1 x 2) + (1 x 16) = 18 g

                           2(26) g of Acetylene ---------------  2(18) g of Water

                               113 g  of Acetylene --------------   x

                                x = (113 x (2 x 18)) / 2(26)

                                x = 4068 / 52

                             <u> </u>  x = 78. 2 g of water

b)                2 moles of Acetylene ------------  4 moles of carbon dioxide

                   x moles of acetylene ------------  1.10 moles of carbon dioxide

                         x = (1.10 x 2) / 4

                        x = 0.55 moles of acetylene

6 0
3 years ago
Read 2 more answers
Please help me (number which answer is which number)
Klio2033 [76]
1) An endothermic reaction is a reaction where heat is "absorbed" and the surrounding area is cooled. An example of an endothermic reaction is the classic baking soda and vinegar reaction. The mixture gets cold.
An exothermic reaction is one which gives off heat, such as burning, which is itself a chemical reaction.

2) (I don't actually know this one but i hope i helped with number one)
7 0
4 years ago
Give the IUPAC name of HO–CH2–CH2–OH
Dmitry [639]
The iupac name is ethylene glycol
4 0
3 years ago
What does the term division of labor mean as it relates to cells?
lidiya [134]

Answer:

what each cells job is divided

Explanation:

7 0
3 years ago
. a large piece of jewelry has a mass of 132.6 g. a graduated cylinder initially contains 48.6 ml water. when the jewelry is sub
elena-s [515]

The large piece of jewelry  that has a mass of 132.6 g and when is submerged in a graduated cylinder that initially contains 48.6 ml water and the volume increases to 61.2 ml once the piece of jewelry is submerged, has a density of: 10.523 g/ml

To solve this problem the formulas and the procedures that we have to use  are:

  • v = v(f)-v(i)
  • d = m/v

Where:

  • d= density
  • m= mass
  • v= volume
  • v(f) = final volume
  • v(i) = initial volume

Information about the problem:

  • m = 132.6 g
  • v(i) = 48.6 ml
  • v(f) = 61.2 ml
  • v = ?
  • d =?

Applying the volume formula we get:

v = v(f)-v(i)

v = 61.2 ml - 48.6 ml

v = 12.6 ml

Applying the density  formula we get:

d = m/v

d = 132.6 g/12.6 ml

d = 10.523 g/ml

<h3>What is density?</h3>

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

Learn more about density in: brainly.com/question/1354972

#SPJ4

3 0
1 year ago
Other questions:
  • Witch equations are correctly balanced.
    14·1 answer
  • According to the kinetic molecular theory what happens to a liquid then it is transferred from one container to another
    14·2 answers
  • when 0.863 mol acetone is dissolved in 500 g benzene, the freezing point of benzene drops 8.84°C. what is the molal freezing poi
    13·1 answer
  • How many moles of C6H12O6 are needed to produce 38.44 grams of CO2? Round your answer to three digits after the decimal point.
    12·1 answer
  • A3B8 + C2 ---&gt; AC2 +
    8·1 answer
  • Looking at the web above, each letter represents a species of animal in an ecosystem food web. Which of the following is most li
    11·1 answer
  • Pleaaaaaase Somebody!!!!
    9·1 answer
  • Durante 50 s un cuerpo viaja a una velocidad de 18.5 m/s, ¿Qué distancia recorrió?
    13·1 answer
  • What is the volume of 3.5 moles of chlorine gas at standard temperature and pressure (STP)? (3 points)
    8·1 answer
  • Please help it's due today
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!