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ioda
3 years ago
14

Alkanes are chains of carbon atoms surrounded by hydrogen atoms. a. True b. False

Chemistry
1 answer:
Ne4ueva [31]3 years ago
7 0

Answer:

a. True

Explanation:

Alkanes are chains of carbon atoms surrounded by hydrogen atoms. TRUE.

Alkanes are hydrocarbons, that is, they are organic compounds formed only by carbon and hydrogen. In alkanes, carbon atoms are bonded to each other through single covalent bonds and they are also bonded to hydrogen atoms through the same type of bonds. Alkanes have the general formula CnH2n+2.

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What are five general properties of aqueous bases? b. Name some common substances that have one or more of these properties.
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Answer:

Explanation:(1)base are slippery to touch e.g sodium hydroxide NaOH(aq)..

(2) They can be corrosive e.g pottasium hydroxide KOH(aq) and sodium hydroxide NOH(aq)

(3) They can act as electrolytes e.g NaOH(aq)

(4) they react to acids to form salt and water

Na0H(s)+HCL(aq)>>>NaCL(a)+H20(l)

(5)they dissolve in water to form hydroxyl ion

KoH(aq) >>>>>k+ + 0H-

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3 years ago
A cube with sides 3cm.Its mass is 54g. will it sink or float
zloy xaker [14]

Answer:

It will sink.

Explanation:

Density of water=1gm/cc (In CGS)

Volume of cube=l^3 =3^3= 27cc

Mass of cube =54gm

Density of cube=M/V =54/27 =2gm/cc

Here, density of cube is greater than that of water. So, the cube sinks.

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3 years ago
What type of reaction is represented by the following chemical equation?
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Calculate the volume in (L) of 1.13x10^5 grams of liquid sodium which has a density of 0.929g/cm3
Yuki888 [10]

The volume of the liquid sodium is 121.64 L

<h3>What is density? </h3>

The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as

Density = mass / volume

With the above formula, we can obtain the volume of the liquid. Details below

<h3>How to determine the volume of the sodium liquid</h3>
  • Mass of liquid = 1.13×10⁵ g
  • Density of liquid = 0.929 g/cm³
  • Volume of liquid =?

Density = mass / volume

Thus,

Volume = mass / density

Volume of liquid = 1.13×10⁵ / 0.929

Volume of liquid = 121636.17 cm³

Divide by 1000 to express in liter

Volume of liquid = 121636.17 / 1000

Volume of liquid = 121.64 L

Learn more about density:

brainly.com/question/952755

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