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Liono4ka [1.6K]
3 years ago
8

A waterfall is an example of

Chemistry
2 answers:
Cerrena [4.2K]3 years ago
6 0

Answer:

Chagrin River or cold water

Alla [95]3 years ago
3 0

Answer:

A Liquiad

Explanation:

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Radio stations identify themselves by their position on the radio dial such as 90.1 and 93.3. This number is based on the number
netineya [11]
<span>D. frequency is the answer</span>
4 0
4 years ago
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

4 0
3 years ago
When you open the door to your house on a cold day, you feel a cold draft. What causes this?
GalinKa [24]

Answer:

Inside it's usually warm so when you open a door to outside which is cold a cold front and a warm front will be exposed to each other cold will win usually since cold goes below the warm front.

Explanation:

4 0
3 years ago
The weight percent of concentrated H2SO4, molar mass=980 g/mol, is 960% and its density is 184 g/ml. What is the molarity of con
Elan Coil [88]

Answer:

<em>C</em> H2SO4 = 9.79 M

Explanation:

  • molarity (M) ≡ # dissolved species / V sln
  • H2SO4 ↔ H3O+  +  SO4-

∴ %w/w H2SO4 = 960% = g H2SO4 / g sln * 100

⇒ 9.6 = g H2SO4 / g sln

calculation base: 1000 g sln

⇒ g H2SO4 = 9600g

⇒<em> </em>mol<em> </em>H2SO4 =<em> </em>9600 g H2SO4 * ( mol H2SO4/ 980g H2SO4 ) = 9.796  mol H2SO4

⇒ V sln = 1000g sln / 1000g/L = 1 L sln

∴ ρ H20 ≅ 1000 Kg/m³ = 1000 g/L

⇒ <em>C</em> H2SO4 = 9.796 mol H2SO4 / 1 L sln

⇒ <em>C</em> H2SO4 = 9.796 M

8 0
3 years ago
At stp potassium is classified as?
vekshin1
At STP, potassium is classified as a solid specifically a metallic solid. At these conditions, the element is neither a molecular solid nor an ionic solid since both needs electron movement. Potassium exists in its metallic form. Hope this answers the question.
5 0
3 years ago
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