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Svetllana [295]
3 years ago
14

Sierra has a special kind of liquid rubber. She knows that ultraviolet light is absorbed by the rubber, X-ray light is transmitt

ed through the rubber, and blue light is reflected off the rubber. Sierra wonders if the liquid rubber will become solid if she shines the lights on it. Can light cause the rubber to become solid? Why or why not? Does it matter what type of light she shines on the rubber?
Chemistry
1 answer:
Grace [21]3 years ago
3 0
Send a picture of the question
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Select the conjugate acid-base pair(s). a) HI, I b) HCHO2, SO4^2- c) CO3^2-, HCI d) PO4^3-, HPO4^2-
Semenov [28]

Answer:

d) PO4^3-, HPO4^2-

Explanation:

Basically, an acid and a base which differs only by the presence or absence of  proton (hydrogen ion) are called a conjugate acid-base pair.

a) HI, I

This is incorrect. For the acid, HI the conjugate base is I⁻ ion.

b) HCHO2, SO4^2-

This is incorrect, there's no relationship between both entities.

c) CO3^2-, HCI

This is incorrect, there's no relationship between both entities.

d) PO4^3-, HPO4^2-

This is correct. The difference between both entities is the Hydrogen ion. This is the conjugate acid-base pair

6 0
3 years ago
What was one way John Dalton was wrong about the structure of matter?
ryzh [129]
That Atoms are indivisible components of matter, but it has been modified since atoms contains molecules.
8 0
3 years ago
What is the shape of orbits?
Fofino [41]

Answer:

if you meant the Earth's revolving orbit. It is an elliptical orbit.

will you mark me the BRAINLIEST please

5 0
2 years ago
How much energy was absorbed by the water?
Lorico [155]
<h2>Answer: <u><em>Precisely, water has to absorb 4,184 Joules of heat (1 calorie) for the temperature of one kilogram of water to increase 1°C.</em></u></h2>

Explanation:

4 0
2 years ago
Read 2 more answers
If a rock sample has a mass of 2.7g and a volume of 1.1cm^3 what type of rock is it
Vera_Pavlovna [14]

Answer:

The rock is heavier than water and when put into water it will sink.

Explanation:

Given data:

Mass of rock = 2.7 g

Volume = 1.1 cm³

Type of rock = ?

Solution:

From given data we can calculate the density of rock.

If the density of rock is higher than the density of water it means the rock is heavier than water.

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

d = m/v

d = 2.7 g/ 1.1 cm³

d = 2.5 g/cm³

density of water is 1 g/cm³. The rock is heavier than water and when put into water it will sink.

5 0
3 years ago
Read 2 more answers
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