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skad [1K]
3 years ago
11

Need helppppppCopper sulphate is a crystalline substance. why???​

Chemistry
1 answer:
MaRussiya [10]3 years ago
4 0

Explanation:

Copper(II) sulfate, also known as copper sulphate, are the inorganic compounds with the chemical formula CuSO4(H2O)x, where x can range from 0 to 5. The pentahydrate (x = 5) is the most common form. Older names for this compound include blue vitriol, bluestone,[9] vitriol of copper,[10] and Roman vitriol.[11]

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Test Name: GR8_Sci_U07_USA_FY20
kumpel [21]

The distance from the star to the Earth

Explanation:

The absolute brightness of a star is a measure of the intrinsec luminosity of the star, i.e. it does not depend on the distance of the star from the Earth.

In other word, the absolute brightness is a measure of the luminosity of a star if all stars were placed at the same distance from Earth.

On the other hand, the relative brightness of a star is a measure of its luminosity as observed on Earth, therefore it does depend on the distance of the star from the Earth: the farther the star is, the more its luminosity will decrease, and vice-versa.

The star's absolute brightness, therefore, depends only on the characteristics of the star itself, namely:

- The absolute magnitude of the star

- The rate at which the star produces energy via nuclear fusion

- The rate at which the star releases energy via electromagnetic radiation

Therefore, the only factor that does NOT change if the absolute brightness of a star changes is

- The distance from the star to the Earth

Learn more about planets and stars:

brainly.com/question/2887352

brainly.com/question/10934170

#LearnwithBrainly

8 0
3 years ago
The volume of a gas is 450 mL when its pressure is 1.00 atm. If the temperature of the gas does not change, what is the pressure
Mekhanik [1.2K]

Answer: The pressure of the gas is 0.225 atm.

Explanation: To calculate the pressure of the gas, we use Boyle's Law.

Boyle's Law states that pressure is inversely proportional to the volume of the gas at constant temperature.

Mathematically,

P\propto \frac{1}{V}

Or,

P_1V_1=P_2V_2

where,

P_1\text{ and }V_1 are the initial pressure nd volume.

P_2\text{ and }V_2 are the final pressure andvolume

Initial conditions:

P_1=1atm\\V_1=450mL

Final conditions:

P_2=?atm\\V_2=2L=2000mL

Conversion factor: 1L = 1000mL

Putting values in above equation, we get:

1atm\times 450mL=P_2\times 2000mL\\P_2=0.225atm

8 0
3 years ago
Read 2 more answers
This leaf is green is A. an observation, B. a hypothesis. C. a theory As Corporation. All Rights Reseruar​
Trava [24]

Answer:

A. an observation

Explanation:

Because by saying that the leaf is green that is an observation on the leaf to tell what color it is.

Have a nice day/night :)

7 0
2 years ago
MAJOR, PLEASE HELP, BRAINEST IF CORRECT
Vanyuwa [196]

Answer:

B and C

Explanation:

6 0
3 years ago
The properties of two elements are listed below. Which prediction is supported by the information in the table?
ANEK [815]
K will give up an electron more easily than Br.
3 0
3 years ago
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