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otez555 [7]
4 years ago
14

Determine the volume of an object that has a mass of 455.6 g and a density of 19.3 g/cm3. (1cm3 = 1ml) select one:

Chemistry
1 answer:
Dmitry [639]4 years ago
4 0
The answer is B. The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.

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Calculate the no. of moles in 25gm of calcium phosphate <br><br>Plz Fast Urgent
madreJ [45]

Answer:

0.162 mol

Explanation:

n=m/M

M= 20*3 + 15*2 + 8*4*2

M=154 g/mol

n=25g/154g/mol

n=0.162 mol

7 0
3 years ago
H2(g)+I2(s)→HI(s)H2(g)+I2(s)→HI(s) balance equations
poizon [28]

Answer:

H2(g)+I2(s)→2HI(s)

Explanation:

Hello there!

In this case, according to the given information and unbalanced chemical reaction, we infer it must be balanced in agreement with the law of conservation of mass because the reactants side has two hydrogen and iodine atoms whereas the products side has just one. In such a way, by placing a 2 on HI, we obtain the following balanced reaction:

H2(g)+I2(s)→2HI(s)

Regards!

5 0
3 years ago
How can you tell if both crops of crystals are your product? Why would additional solid precipitate in your filtrate?
Leto [7]

Crops of the crystals are a part of the same crystal which might have different chemical structures leading to different colors.

<u>Explanation:</u>

Crops of the crystals are the parts of the crystals. And even being a part of the same crystal, the crops of the crystals can have different colors from the other crops of the crystal.

The color of crops of crystals are dictated by the chemical structure and their physical characteristic (crystalline or formless). The shape and the size of its crystalline structure, likewise the chance of polymorphism, may impact its shading.

3 0
4 years ago
What is the main function of mitochondria?
sweet [91]

Answer:

Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

Explanation:

i did some research hope this help :)

7 0
4 years ago
Which planet listed below will take the longest amount of time to orbit the sun?
Tema [17]

Answer:

Neptune takes the longest to orbit the sun because of it's distance away from the Sun.

Explanation:

5 0
3 years ago
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