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4 years ago

Is blue color a physical change

Chemistry

2 answers:

blondinia [14]4 years ago

8 0

Yes if it turns into a gas then it's a chemical change

goblinko [34]4 years ago

3 0

Yes because nothing changed.

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A substance is followed by the symbol (I) in a chemical Equation. What does the symbol Represent

Ber [7]

Answer:

Iodine

Explanation:

Hope this helps. Think about me, when giving out brainiest.

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3 years ago

How would lava that comes out of a Strato volcano be described most accurately

andrew11 [14]

A stratovolcano is a tall, conical volcano composed of one layer of hardened lava, tephra, and volcanic ash. These volcanoes are characterized by a steep profile and periodic, explosive eruptions. The lava that flows from them is highly viscous, and cools and hardens before spreading very far. , , !!

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3 years ago

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How many neutrons does tin-112 have?

Katarina [22]

Answer:

69 neutrons

Explanation:

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3 years ago

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How many moles are contained in 70. milliliters of a 0.167 M solution of p-toluidine hydrochloride? Enter only the number to two

kramer

Answer: The amount of p-toluidine hydrochloride contained is 2.4 moles.

Explanation:

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}$

Molarity of p-toluidine hydrochloride solution = 0.167 M

Volume of solution = 70. mL

Putting values in equation 1, we get:

$0.167=\frac{\text{Moles of p-toluidine hydrochloride}\times 1000}{70}\\\\\text{Moles of p-toluidine hydrochloride}=\frac{(0.167\times 70}{1000}=2.38mol=2.4mol$

Hence, the amount of p-toluidine hydrochloride contained is 2.4 moles.

6 0

4 years ago

Answer pls

alukav5142 [94]

the answer is answer

7 0

3 years ago