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2 years ago

What is the density of an object having a volume of 8 ml and a mass of 22 grams?

Chemistry

2 answers:

solniwko [45]2 years ago

5 0

Answer:

0.32gcm3 . I miss the old Kanye, straight from the 'Go Kanye

Chop up the soul Kanye, set on his goals Kanye

I hate the new Kanye, the bad mood Kanye

The always rude Kanye, spaz in the news Kanye

I miss the sweet Kanye, chop up the beats Kanye

I gotta to say at that time I'd like to meet Kanye

See I invented Kanye, it wasn't any Kanyes

And now I look and look around and there's so many Kanyes

I used to love Kanye, I used to love Kanye

I even had the pink polo, I thought I was Kanye

What if Kanye made a song about Kanye

Called "I Miss The Old Kanye, " man that would be so Kanye

That's all it was Kanye, we still love Kanye

And I love you like Kanye loves Kanye

Explanation:

Slav-nsk [51]2 years ago

3 0

Answer:

2.75

Explanation:

D= $\frac{mass}{volume}$

$\frac{22}{8}$ = 2.75

Hope this helps!

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If a sample of radioactive isotopes takes 60 minutes to decay from 200 grams to 50 grams, what is the half-life of the isotope

qaws [65]

Answer:

I HOPE IT WILL BE YOUR ANSWER:

Explanation:

As given

60 min = 50 gm (1)

then we know half-life mean half amount decay time

so we can write as the half of 200 is 100 gm hence

T 1/2 = 100 (2)

solving these two equation by cross multiplication we will get

T 1/2 = 120 min

THANKS FOR ASKING QUESTION

6 0

3 years ago

What is the total pressure of three gases, if the partial pressures are: 2.67 mmHg, 45.29 mmHg, and 789.6 mmHg

EastWind [94]

Answer:

The total pressure of three gases is 837.56 mmHg.

Explanation:

The pressure exerted by a particular gas in a mixture is known as its partial pressure. So, Dalton's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas would exert if it were alone:

PT = PA + PB

This relationship is due to the assumption that there are no attractive forces between the gases.

In this case, the total pressure can be calculated as:

PT= 2.67 mmHg + 45.69 mmHg + 789.6 mmHg

Solving:

PT= 837.56 mmHg

The total pressure of three gases is 837.56 mmHg.

7 0

3 years ago

The major reaction of the unsaturated compounds is:

antiseptic1488 [7]

Its B addition

where an atom adds to the broken double bond of a hydrocarbon and saturates it

hope that helps

3 0

3 years ago

Read 2 more answers

A 6.68-g aqueous solution of isopropyl alcohol contains 3.97 g of isopropyl alcohol. What is the mass percentage of isopropyl al

Sphinxa [80]

Answer : The mass percentage of isopropyl alcohol in the solution is, 59.4 %

Explanation :

To calculate the mass percentage of isopropyl alcohol in the solution, we use the equation:

$\text{Mass percent of isopropyl alcohol}=\frac{\text{Mass of isopropyl alcohol}}{\text{Mass of isopropyl alcohol solution}}\times 100$

Mass of isopropyl alcohol = 6.68 g

Mass of isopropyl alcohol solution = 3.97 g

Putting values in above equation, we get:

$\text{Mass percent of isopropyl alcohol}=\frac{3.97g}{6.68g}\times 100=59.4\%$

Thus, the mass percentage of isopropyl alcohol in the solution is, 59.4 %

6 0

3 years ago

In volcanic rock does the proportions of iron oxide increase when silicon dioxide increases?

a_sh-v [17]

THe amount of iron oxide decreases as the level of silica increases.

3 0

3 years ago