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Andrews [41]
3 years ago
14

Write the formula for the compound formed when barium reacts with oxygen

Chemistry
1 answer:
solong [7]3 years ago
6 0

Answer:

BaO

Explanation:

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PLEASE IN NEED HELP ASAP
Solnce55 [7]
Because nothing appeared he concluded that <span>that living things could NOT just appear or come from nonliving things like water and air</span>
3 0
4 years ago
Omg pls help i dunno what the frick frack this is
snow_lady [41]

Answer:

1. Mass of KCl produced = 774.8 g of KCl

2. Mass of KNO₃ produced = 13.837g

3. Moles of NaOH made = 0.846 moles

4. Moles of LiCl produced = 0.846 moles

5. Moles of CO₂ produced = 207.6 moles

Explanation:

1. From the equation of reaction, 1 mole of ZnCl₂ produces, 2 moles of KCl.

5.02 moles of ZnCl₂ will produce, 2 × 5.02 moles of KCl = 10.4 moles of KCl

Molar mass of KCl = (39 + 35.5) g/mol = 74.5 g/mol

10.4 moles of KCl = 10.4 × 74.5 g

Mass of KCl produced = 774.8 g of KCl

2. Mole ratio of KNO₃ and KOH = 1:1

O.137 moles of KOH will produce 0.137 moles of KNO₃

Molar mass of KNO₃ = 101 g/mol

Mass of KNO₃ produced = 0.137 × 101 g = 13.837g

3. Molar mas of Ca(OH)₂ = 74.0 g

Moles of Ca(OH)₂ in 31.3 g = 31.3/74.0 = 0.423 moles of Ca(OH)₂

Mole ratio of NaOH and Ca(OH)₂ in the reaction = 2 : 1

Moles of NaOH made = 2 × 0.423 = 0.846 moles

4. Molar mass of MgCl₂ = 95.0 g

Moles of MgCl₂ in 40.2 g = 40.2/95.0 = 0.423 moles

From the reaction equation, mole ratio of MgCl₂ and LiCl = 1:2

Moles of LiCl produced = 2 × 0.423 = 0.846 moles

5. From the equation of reaction, 1 mole of C₆H₁₀O₅ produces 6 moles of cO₂

34.6 moles of C₆H₁₀O₅ will produce 34.6 × 6 moles of CO₂

Moles of CO₂ produced = 207.6 moles

4 0
3 years ago
An electron's quantum number falls under which structure classification O macroscopic O subatomic atomic Omicroscopic O none of
Tems11 [23]

Answer:

O subatomic atomic

Explanation:

Each orbitals of an atom and electrons accommodated are described by a set of quantum numbers. These numbers gives the position of an orbital with respect to the nucleus, the shape of the orbital, its spatial orientation and the spin of the electron in the orbital.

The quantum numbers can be used to write proper sub-level notation of an atom.

6 0
3 years ago
If you put ice into a cup of coffee explain how energy will flow​
aev [14]

Explanation:

Your Ice Cube will begin to melt making your Coffee Cooler than before. ... Your Coffee might have a weird taste from freezer water. I'd rather leave my cup of Coffee cool in the air than using Ice to change the structure of content.

4 0
4 years ago
Which equation demonstrates that nuclear fusion forms elements that are heavier than helium
yan [13]

Answer: The correct option is, 2.

Explanation:

Nuclear fission: It is defined as the reactions in which a larger unstable nuclei breaks into two or more smaller stable nuclei.

Nuclear fusion: It is defined as the reaction where two smaller nuclei combine together to form a larger nuclei.

Option 1 & option 2 shows fusion reaction and option 3 & option 4 shows fission reaction.

In option 1, helium itself is forming but in option 2, element is heavier than forming which is, neon.

Hence, the correct option is 2.

6 0
4 years ago
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