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Morgarella [4.7K]
2 years ago
8

How was carbon discovered

Chemistry
2 answers:
Oduvanchick [21]2 years ago
3 0

Answer:

the carbon is the animals who eat plants

Explanation:

you mean cabone

Sedaia [141]2 years ago
3 0

Answer: Carbon is a chemical element that has a capital C on the periodic table, it has the atomic number of 6.

HOPE THIS HELPED YOU. IF NOT SORRY!

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How many grams of fluorine are needed to react with 8.5g of phosphorus?
love history [14]

Step 1: write the equation:

                                          P₄(s) + 6F₂(g) → 4PF₃(g) 


Step 2: Molar mass of P₄ = 30.97 g/mol × 4 = 123.88 g/mol


Step 3: Number of moles of phosphorus

                                                    n = m/M 

                                                    n = 8.5 g/123.88g/mol

                                                    n = 0.07 moles


Step 4: 0.07 × 12 = 0.84 moles of fluorine.

Fluorine is diatomic gas so we multiplied the number of moles by 12.


Step 5: To find the mass of fluorine we multiply the number of moles with the molar mass.

                            Mass of fluorine = 0.84 ×  228 

                                                        = 191.52 grams.

4 0
3 years ago
Can someone help me out please ? I am very stuck here
Alex17521 [72]
Hey there!

<span>Atomic Masses :
</span>
H = <span>1.00794  a.m.u
N = </span><span>14.0067  a.m.u
O = </span><span>15.9994  a.m.u

Therefore:

HNO3 = </span>1.00794 + 14.0067 + ( 15.9994 * 3 ) =>  <span>63.0128 g/mol</span>
7 0
3 years ago
Fossil fuels are commonly used as a source of energy because _____.
My name is Ann [436]

Answer:

fossil fuels are cost-effective.

5 0
3 years ago
Read 2 more answers
A source from which an organism benefits
maks197457 [2]

Answer:

a ecosystem

Explanation:

4 0
2 years ago
Iron is obtained by reducing iron (III) oxide using the gas carbon monoxide. The reaction is
ivann1987 [24]
A. iron(III) oxide + Carbon-monoxide -> Iron + Carbon-di-oxide.
b.56*2 +16*3
c.Moles=mass(g) / Mr which is 3200/160
d. 2 moles
e.2 moles
f. Moles x Mr = mass so, 20 x 112=2240g
7 0
3 years ago
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