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3 years ago

Which option describes a phase change?

Chemistry

1 answer:

Leto [7]3 years ago

8 0

I apologize of I'm wrong but its probably OA

Sorry once again!

~wise rat

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How much heat is absorbed when 70 grams of

mart [117]

Answer:

Thus, the joules of heat absorbed when 70.0 grams of water is completely vaporised at its boiling point are 158,200.

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3 years ago

Help me please Look at the picture linked

____ [38]

Halogen--Florine

Chalogen-- Oxygen

Alkali Metal-- Sodium

Boron -- Metalloid (atomic symbol B)

Lanthanide series-- (Number 57-71 on periodic Table) Example: Cerium #58

Alkaline Earth Metal--Magnesium

Transition Metal-- Gold, Iron, Silver. Etc... (Middle section of a period table)

Nobel Gas--Helium

4 0

3 years ago

1.40 m3 is how many mL

Zarrin [17]

$\LARGE{ \boxed{ \rm{ \pink{Solution:}}}}$

We know, 1 m³ of space can hold 1000 l of the substance.

⇛ 1 m³ = 1000 l----(1)

And, 1 l is 1000 times more than 1 ml

⇛ 1 l = 1000 ml------(2)

So, From (1) and (2),

⇛ 1 m³ = 1000 × 1000 ml

⇛ 1m³ = 1000000 ml

We had to find,

⇛ 1.40 m³ = 1.40 × 1000000 ml

⇛ 1.40 m³ = 140/100 × 1000000 ml

⇛ 1.40 m³ = 1400000 ml

⇛ 1.40 m³ = 14,00,000 ml / 14 × 10⁵ ml / 1.4 × 10⁶ ml

☃️ So, 1.40 m³ = 14 × 10⁵ ml / 1.4 × 10⁶ ml.

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5 0

3 years ago

Read 2 more answers

Which of the following values are not equal to 1 mole?

Gekata [30.6K]

Answer:

none of them are equal to one mole

3 0

3 years ago

Which percentage represents the amount of Earth's water that is found in oceans?

earnstyle [38]

Your correct answer is C. 97%

7 0

3 years ago