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2 years ago

5

Why were Opportunity and Spirit sent to Mars' surface? A. to look for alien life B. to study the rocks and soil C. to study the

atmosphere D. to mine for specific minerals

2 answers:

DanielleElmas [232]2 years ago

6 0

Mine for specific minerals. because we have done all the other things already

alexandr1967 [171]2 years ago

5 0

D. to mine for specific minerals

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A 0.100 M solution of bromoacetic acid (BrCH2COOH) is 13.2% ionized. Calculate [H+]? Calculate BrCH2COO^ - ? Calculate BrCH2COOH

Natali [406]

<u>Answer:</u> The concentration of hydrogen ion and bromoacetate ion is 0.0132 M and 0.0132 M resepectively and that of bromoacetic acid is 0.0868 M

<u>Explanation:</u>

We are given:

Molarity of bromoacetic acid = 0.100 M

Percent of ionization = 13.2 %

The chemical equation for the ionization of bromoacetic acid follows:

$BrCH_2COOH\rightarrow BrCH_2COO^-+H^+$

1 mole of bromoacetic acid produces 1 mole of bromoacetate ion and 1 mole of hydrogen ion

Molarity of hydrogen ion = 13.2 % of 0.100 = $\frac{13.2}{100}\times 0.100=0.0132M$

Molarity of bromoacetate ion = molarity of hydrogen ion = 0.0132 M

Molarity of bromoacetic acid = Molarity of solution - Molarity of ionized substance

Molarity of bromoacetic acid = 0.100 - 0.0132 = 0.0868 M

Hence, the concentration of hydrogen ion and bromoacetate ion is 0.0132 M and 0.0132 M resepectively and that of bromoacetic acid is 0.0868 M

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3 years ago

Minerals are grouped according to their

tino4ka555 [31]

Answer:

chemical composition

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3 years ago

Which way can heat never flow?

Elena L [17]

Which way can heat never flow?

The wrong answer is a,c,d

The correct answer is b. Cold to Hot

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3 years ago

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Write down all the food chains that start with the blackberry and end with the hawk.

Roman55 [17]

Blackberry - rabbit - snake - owl - hawk<span>
</span>

6 0

3 years ago

The Blue Giant of the Orient is the largest faceted sapphire in the world, with a mass of

vfiekz [6]

The volume of this sapphire in cubic centimeters is 24.4 cm^3

We have the following information;

Mass of the Blue Giant = 486.52 carats

Density of the blue giant = 3.98 g/cm3

Volume of the blue giant = ?

Since the density is given in g/cm3, we must convert the mass to grams.

We have the conversion factor; 5 carats = 1 g

So;

If 5 carats make 1g

486.52 carats make 486.52 carats × 1g/ 5 carats

= 97.30 g

Since;

Density = mass/volume

Volume = Mass/Density

Volume = 97.30 g/3.98 g/cm3

Volume = 24.4 cm^3

Learn more: brainly.com/question/6034174

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3 years ago