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Eddi Din [679]
3 years ago
13

An _____ bond forms when one element give electrons to another element - one becomes a positive ions and the other a negative io

n.
covalent
metallic
ionic
Chemistry
1 answer:
Harrizon [31]3 years ago
7 0

Answer:

ionic

Explanation:

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__C8H18(I) + __ O2(g) —> __Co2(g) + __H2O(g) Balance out the equation
Ymorist [56]

Answer:

2C8H18(l) + O2(g)--->CO2(g)+H2O

3 0
2 years ago
Hydrogen gas reacts with oxygen to form water. 2H2(
denpristay [2]
The reaction is as follows:
2 H₂(g) + O₂(g) → 2 H₂O(g) . ΔH = - 483.5 kJ
Using the change in enthalpy and heat, calculate the moles as follows:
Moles of H₂ = - \frac{amount of heat released}{ΔH} x 2 mol H₂
                  = - 216 kJ / (-483.5 kJ) x 2 mol H₂ 
                  = 0.893 mol H₂
Calculate the mass of H₂ using the moles and molar mass as follows:
0.893 mol H₂ x (2.02 g H₂ / 1 mol H₂) = 1.79 g H₂
Therefore, the mass of hydrogen gas is 1.79 g
7 0
3 years ago
What’s “the ring of fire” meaning ( no answers from goo gle please I really wanna understand this because it’s coming in my test
klemol [59]

Answer:

"Ring of Fire" sounds ominous, the term refers to falling in love

Explanation:

Brainliest???

8 0
2 years ago
Burning a compound of calcium, carbon and nitrogen in oxygen generates calcium oxide (CaO), carbon dioxide (CO2) and nitrogen di
Slav-nsk [51]

Answer:

CaCN₂

Explanation:

A compound of calcium, carbon and nitrogen CaₐCₓNₙ in oxygen will burning producing:

CaₐCₓNₙ + O₂ → aCaO + xCO₂ + nNO₂

Moles of the oxides CaO, CO₂, NO₂ are:

CaO: 3.106g ₓ (1 mole / 56.08g) = <em>0.0554 moles of CaO = moles of Ca</em>

CO₂: 2.439g ₓ (1mole / 44g) = <em>0.0554 moles CO₂ = moles C</em>

NO₂: 5.097g ₓ (1mole / 46g) = <em>0.111 moles NO₂ = moles N</em>

Empirical formula is the chemical formula that represents the simplest ratio of elements in a compound.

Having as basis 0.0554 moles (The lower number of moles):

0.0554 moles Ca / 0.0554 = 1 Ca

0.0554 moles C / 0.0554 = 1 C

0.111 moles N / 0.0554 = 2N

Thus, the compound CaₐCₓNₙ  has as empirical formula:

Ca₁C₁N₂ = <em>CaCN₂</em>

3 0
3 years ago
Define density. Plz help me
FinnZ [79.3K]
Density is the weight of something per unit of volume
6 0
2 years ago
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