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zlopas [31]
2 years ago
10

Are diamonds and graphite made from the same element

Chemistry
1 answer:
goldenfox [79]2 years ago
4 0

Answer:

Graphite and diamond are two of the most interesting minerals. They are identical chemically – both are composed of carbon (C), but physically, they are very different. Minerals that have the same chemistry but different crystal structures are called polymorphs.

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Hg2(NO3)2 + Na2CO3 = NaNO3 + HgCO3 balance this
Elenna [48]

Answer:

Hg(NO3)2 + Na2CO3 --> 2NaNO3 + HgCO3

4 0
2 years ago
What is the m of a solution where 0.500 moles of a salt are dissolved in 100.0 ml of solution? 25.0m 5.00m 50.0m o.500m 2.50m?
My name is Ann [436]
Molarity=moles/litre
molarity=0.5/0.1
molarity=5.00m
3 0
3 years ago
The elements in period 3 all have what characteric
Anastasy [175]
The answer is that they all have metallic structures
7 0
2 years ago
How much ice (in grams) would have to melt to lower the temperature of 354 ml of water from 26 ?c to 6 ?c? (assume the density o
Anit [1.1K]
Heat gained in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:<span>

Heat = mC(T2-T1) 

When two objects are in contact, it should be that the heat lost is equal to what is gained by the other. From this, we can calculate things. We do as follows:

<span>Heat gained = Heat lost</span>
mC(T2-T1) = - mC(T2-T1) 

C(liquid water) = 4.18 J/gC
C(ice) = 2.11 J/gC

</span><span>(354 mL)(1.0 g/mL)(4.18 J/gC)(26 C - 6 C) = m(2.11 J/gC)(6 - 0C) </span><span>
m = 2337.63 g of ice

</span>
3 0
3 years ago
. Find the mass of 0.159 mol silicon dioxide.​
Juliette [100K]

Answer:

9.55 grams of SiO2

Explanation:

If the mass you mean by grams:

0.159 mole x 60.08 g (Periodic table by adding both elements)

Cancel moles with moles (Original moles with the 1 mol at the bottom of the grams) and gives you:

9.55 grams of SiO2

4 0
2 years ago
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