Who said atoms are neither created nor destroyed in chemical reactions?

A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with ba

Lelechka [254]

gas to liquid

Explanation:

The change of state indicated by this analogy is from gas to liquid.

Cylinder to the left is filled with gases

Cylinder to the right is made up of liquid.

Gases occupy the volumes of containers they are introduced into.
They are random and possess a high kinetic energy.
Liquids have definite volume and flow with one another.
The gases in A are dispersed and in random motion.
This phase change is called condensation

learn more:

Phase change brainly.com/question/1875234

#learnwithBrainly

7 0

3 years ago

Read 2 more answers

An ice cream sundae is a(n)

Brrunno [24]

Answer:

A frozen dessert that tastes good and makes people happy

:)

Explanation:

5 0

3 years ago

A dependent variable is

Anuta_ua [19.1K]

Answer:

a variable (often denoted by y) whose value depends of that of another.

Explanation:

on g00gle duhh just look it up. :)

7 0

2 years ago

Pls tell me how to solve this!

Anna35 [415]

Answer:

12 seconds

Explanation:

Time taken by 50cm³ of oxygen to diffuse from pinhole

= 1 minute = 60 seconds

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$\textsf{ Rate of oxygen} \sf (O_2) = \frac{50}{60}$

⠀

Let time taken by 50cm³ of hydrogen to diffuse from pinhole = t seconds

⠀

$\textsf {Rate of hydrogen } \sf(H_2) = \frac{50}{t}$

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According to the formula

$\sf \frac{Rate \: of \: hydrogen(H_2)}{Rate \: of \: oxygen(O_2) } = \sqrt{ \frac{Molar \: mass \: of \: O_2}{Molar \: mass \: of \: H_2} }$

⠀

$\large \sf \frac{50}{t} \div \frac{50}{60} = \sqrt{ \frac{\cancel{32}\small 16}{\cancel2} } \\ \\ \sf \large \frac{ \cancel{50}}{t} \times \frac{60}{ \cancel{50}} = \sqrt{16} \\ \\ \sf \large \frac{60}{t} = 4 \\ \\ \sf \large \frac{ \cancel{60} \: \small12}{ \cancel4} = t \\ \\ \large \underline{ \boxed{ \tt t = 12 \: seconds}}$

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<h3>Henceforth, the time taken by 50cm³ of hydrogen to diffuse is 12 seconds. </h3>

⠀

<h2>Thank you!</h2>

8 0

1 year ago

Calculate the molarity of the solutions described below.

maria [59]

Answer:

Explanation:

A. Na = 23 g/m Cl = 35.5 g/m NaCl = 58.5 g/m

10g / 58.5 g/m = .17 mole

.17 mole/ 2.0 L = 0.086 m/L = 0.086 Molar

B. 342 g/m 52.5/342 =0.15 mole 0.15 mole/1.0 L = 0.15 Molar

C. Al2(SO4)3== 342 g/m 120/342 = 0.35 mole 0.35 m/10.L 0.035 Molar

D caffeine = 194 g/m 1.75/ 194 = 0.009 mole 0.009/0.100 L 0.09 Molar

7 0

3 years ago