CHEMISTRY HIGH SCHOOL

What is frezzing pointvof light

Answers

Answer 1

Answer:

Depends from where the light is

Explanation:

If it is in the north pole than it will be 0°C

Answer 2

Answer:

Answer:

You cannot freeze light.

Explanation:

Only some scientists have been able to freeze light. But, they have only been able to freeze light for about 1 minute.

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URGENT PLEASEEEE HELPA functional group is a specific arrangement of atoms in an organic compound that is capable of characteristic reactions

Is this true of false
PLEASE HELPP NO LINKSS

Answers

Answer:

That is true

Explanation:

16 Which change results in the formation of different substances?(1) burning of propane(2) melting of NaCl (s)
(3) deposition of CO2(g)
(4) solidification of water

Answers

Answer:The correct answer is option (1).

Explanation:

Burning of propane in the presence of oxygen will form carbon-dioxide, water and heat.The chemical reaction can represented as in chemical equation:

$C_3H_8+5O_2\rightarrow 3CO_2+4H_2O+heat$

This is an example of chemical change where new product is formed.

Where as in melting of sold sodium chloride, deposition of carbon-dioxide gas and solidification of water ;phase of the substance is changing that is a physical change is taking place.

Hence, the correct option is (1).

1. The burning of propane creates different substances: propane and oxygen combine to create water and carbon dioxide:

C3H8 + 5 O2 becomes 3 CO2 + 4 H2O + heat

2. When NaCl melts, it is changing state, but it is still the same NaCl.

3. When gaseous CO2 deposits it is changing state, but it is still the same CO2.

4. When (presumably liquid) water solidifies, it is changing state, but it is still the same water.

So the answer is 1.

Valerie creates a model using three different rocks. The rocks are classified as igneous, metamorphic, and sedimentary.Which property does Valerie use for classification purposes?

color
formation
shape
texture

Answers

The rocks are classified as igneous, metamorphic, and sedimentary use the formation for classification purposes.

What are the 3 types of rocks existing on earth?

The outermost of them, called the crust, is composed of three types of rocks: magmatic, sedimentary and metamorphic. They are defined through the origin of several minerals and can be characterized with chemical composition, texture or shape, but the most used specification is based on composition.

The property does Valerie use for classification purposes is formation.

See more about rocks at brainly.com/question/19930528

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Formation

I remember having this question on a quiz a while back

Given 16.2 grams of substance Y, if the substance absorbs 2722 joules of energy and the specific heat of the substance is 9.22 J/g·°C, what is the final temperature of the substance if the initial was 26 degrees Celsius?

Answers

Since the substance absorbs heat, it is expected that the temperature will rise. The formula for the internal energy of a substance is given by the equation:

ΔU = mCpΔT

where:

ΔU = internal energy
m = mass of substance
Cp = specific heat capacity of substance
ΔT = change in temperature

ΔU = 2722 Joules = 16.2 grams (9.22 J/g-°C) (Tf - 26°C)

This gives a final temperature of Tf = 44.22 °C

The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of 58.1 grams in one mole. How many carbon atoms are in 1.50 g of butane?

Answers

Doesnt the number of carbon atoms stay the same.
Though the weight of carbon in 1.5g is 1.24g.

This is because the RAM of C4 is 48.

The RFM of C4H10 is 58. Therefore, 48/58 is carbon in butane.

48/58 x 1.5 = 1.24g

List and describe two powerful forces of nature caused by plate tectonics