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Leno4ka [110]
2 years ago
5

HELP ME ASAP !!!!!!!!!!

Chemistry
2 answers:
Ugo [173]2 years ago
4 0

Answer:

running 20 m/s south

Explanation:

so its c

Cloud [144]2 years ago
3 0

Answer:

the yellow one

Explanation:

it includes direction

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Distillation is a _____________ separation technique.
Annette [7]

Answer:

physical

Explanation:

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3 years ago
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Why do we need to study thermodynamics?
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Knowledge of thermodynamics is required to design any device involving the interchange between heat and work, or the conversion of material to produce heat (combustion). Examples of practical thermodynamic devices: What is thermodynamics? The study of the relationship between work, heat, and energy
6 0
2 years ago
You have a 1.8 M solution of HCI. You need to make a 0.70 M solution with a volume of 550 mL. How many mL of the stock solution
Arte-miy333 [17]

The volume of the stock solution needed is 213.88 mL to get new concentration.

<h3>What is molarity?</h3>

Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution.

Determination of the volume of stock solution.

Volume of diluted solution (V₂) =550 mL

Molarity of diluted solution (M₂) =0.70 M

Molarity of stock solution (M₁) = 1.8 M

Volume of stock solution needed (V₁) =?

M₁V₁ = M₂V₂

1.8 M  × V₁ = 0.70 M × 550 mL

V₁ = 213.88 mL

Thus, the volume of the stock solution needed is 213.88 mL.

Learn more about the molarity here:

brainly.com/question/2817451

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5 0
1 year ago
The bond in which bonded atoms share electrons is called a(n)
Rashid [163]

Answer:

covalent bond

hope helpful <3

5 0
2 years ago
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If 35.0 mL of water in a graduated cylinder is displaced by 8.00 mL
sdas [7]

Answer:

<h2>0.52 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}\\

From the question

volume = final volume of water - initial volume of water

volume = 35 - 8 = 27 mL

We have

density =  \frac{14}{27}  \\  = 0.518518...

We have the final answer as

<h3>0.52 g/mL</h3>

Hope this helps you

3 0
2 years ago
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