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3 years ago

While watching a popular space-based science fiction movie, space

Chemistry

1 answer:

Jobisdone [24]3 years ago

5 0

Answer:

Sound waves required a medium.

Explanation:

In space, there is only vacuum hence no any medium for sound wave travel.

Since sound waves are mechanical waves, they require a material medium such as air, hence no sound transmission.

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At the same temperature and pressure, 1.00 moles of H2 gas occupies

zubka84 [21]

It’s A ! Hoped it helped

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3 years ago

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Complete these equations for the ionization of an Arrhenius acid or base in water. Include the states of the products.

Mazyrski [523]

1)
HI(aq) → H⁺(aq) + I⁻(aq)
So this is an Arrhenius acid because it releases H⁺.

2)
LiOH(s) → Li⁺ + OH⁻
So this is an Arrhenius base because it releases OH⁻

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3 years ago

30 mL of 0.6 M HCl solution is neutralized with 90 mL NaOH solution. What is the concentration of the base? Show all work Please

skad [1K]

From

na=1

nb=1

Va=30mls

Vb=90mls

Ma=0.6M

Mb=?

from

Mb=Ma×Va×nb

 Vb×na

Mb=0.6×30×1

 90×1

mb=18

 90

Mb=0.2M

NaOH=40

From

conc=molarity×mr

conc=0.2×40

conc=8g/mol

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3 years ago

An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described?

skelet666 [1.2K]

Answer:

C,D.

Explanation:

Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth's surface. These are the rocks that form at erupting volcanoes and oozing fissures.

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The smallest unit of an element that retains all the characteristics of that element is called a(n)

Maksim231197 [3]

The smallest unit of an element that retains all the characteristics of that element is called an A. atom.
Atoms consist of protons, electrons, and neutrons, but they are particles and don't have the characteristics of the element which is why D is incorrect. B and C are not the smallest units - atoms are smaller than them.

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3 years ago