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Karolina [17]
3 years ago
8

Why can't you get a suntan through glass

Chemistry
2 answers:
maria [59]3 years ago
8 0

Answer: UV Rays can't travel through glass, making it impossible to get a suntan because your body won't be able to respond if there is no UV getting to it.

Explanation: Glass absorbs and deflects a lot of UV light because the wavelengths aren't small enough to pass through and as a result, your body can't undergo its natural response of producing melanin, because the proteins activated by the UV damage won't be enacted.

KiRa [710]3 years ago
6 0

Answer:

The glass protects you from UV rays.

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Which of the following correctly shows the relationship, in terms of number of particles, of the three substances?
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The answer is b but I’m not sure
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The chemical name for the compound formula NaCl is?
Mandarinka [93]

Answer:

The chemical name for the compound formula NaCl is sodium chloride.

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4 years ago
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According to the phase diagram for water, how is the state of water determined?
joja [24]

Explanation:

From the attached phase diagram, one can easily make out the phase in which water exists. Matter generally exists in three physical states which are solid, liquid and gas. Water is a unique compound that can exists in these three states at a given temperature and pressure.

From the attached phase diagram,

  1. point O is the triple point where the three phases of pure substance co-exists.
  2. The areas between the curves points at a single phase of matter. Y is a water vapor.
  3. The lines on the curve denotes two equilibrium phases. For example; X is a phase contain ice and melt water.

Learn more:

brainly.com/question/1612862

#learnwithBrainly

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3 years ago
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A compound that is composed of only carbon and hydrogen contains 80.0% c and 20.0% h by mass. What is the empirical formula of t
gladu [14]

<u>Solution</u> : Emperical Formula =  CH_{3}

Emperical Formula - A formula that gives the simplest whole number ratio of atom in a compound.

In the question percentages are given then assume that the total mass is 100grams so that the mass of each element is equal to the percentage given.

Given : 80.0g Carbon

            20.0g Hydrogen

First convert the given masses into moles.

80.0g\text{ C} \times \frac{1 g/mole \text{ C}}{12.0 g/mole \text{ C}}= 6.66\text{mole of C}

20.0g\text{ H} \times \frac{1 g/mole \text{ H}}{1 g/mole \text{ H}}= 20.0\text{mole of H}

Value of each mole divided by the smallest number of moles and then round off.

Moles ratio of the element are

\frac{6.66}{6.66}\text{mole of C}= 1

\frac{20.0}{6.66}\text{mole of C}= 3

This is the mole ratio of the elements and is repersented by the subscript in the emperical formula.

Emperical Formula =  CH_{3}

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4 years ago
Fill in the blank in order to complete the path for pollen as it fertilizes a plant:anther → stigma --&gt; style → _____________
jek_recluse [69]

The path taken by pollen as it fertilizes a plant would be:

anther ---> stigma ---> style ---> ovule

The fertilization process in plant starts by pollination. Pollen grains move from the anther of a flower to the stigma of the same or different flower. On the stigma, the pollen germinates and the cells of the pollen tube grows through the style to reach the ovule.

The generative cell of the pollen travel through the pollen tube to reach the embryo sac of the ovule. The cell divides by mitosis to form sperm cells and one of the sperm cells fertilizes the egg cell to form the zygote.

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