3 years ago

Pllllllllzzzz help I really need it

1 answer:

5 0

Solid to gas sublimation
Gas to solid deposition
Liquid to gas Evaporation
Gas to liquid Condensation
Liquid to Solid Freezing
Solid to liquid Melting

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Whenever energy is ______ from one form to another, some of that energy is lost by being changed into heat.

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Whenever energy is converted from one form to another, some of that energy is lost by being changed into heat.

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3 years ago

Burning coal releases the following pollutants except

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B stratospheric zone

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An element X combines with oxygen to form a compound of formula XO2. If 24.0 grams of element X combines with exactly 16.0 grams

tensa zangetsu [6.8K]

Answer:

atomic mass of X is 48.0 amu

Explanation:

Let y be the atomic mass of X

Molar mass of O_2 is = 2×16 = 32 g / mol

X + O2 -----> XO_2

According to the equation ,

y g of X reacts with 32 g of O_2

24 g of X reacts with Z g of O_2

Z = ( 32×24) / y

But given that 24.0 g of X exactly reacts with 16.0 g of O_2

So Z = 16.0

⇒ (32×24) / y = 16.0

⇒ y = (32×24) / 16

y= 48.0

So atomic mass of X is 48.0 amu

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3 years ago

Which of the following best describes the solar radiation absorbed by and radiated from earth?

FinnZ [79.3K]

Answer:

the answer that you are looking for is d

Explanation:

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3 years ago

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A Snickers bar contains 27.0 g of sugars (carbohydrates), 4.0 g of protein and 12.0 g of fat. How many food calories (Cal) are c

amm1812

Answer:

There are 232 calories in the bar

Explanation:

Carbohydrates and protein are both 4 calories per gram, while fat is 9 calories per gram.

$27*4=108\\4*4=16\\12*9=108\\108+108+16=232$

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2 years ago