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True [87]
3 years ago
14

Home work)

Chemistry
1 answer:
s344n2d4d5 [400]3 years ago
3 0

Answer:

1. Magnesium + Oxygen --> Magnesium oxide

2.Iron + Oxygen --> Iron oxide

3.Copper + Oxygen --> Copper oxide

Explanation:

When an Element such as Magnesium or any other Elements are reacted eith Oxygen it forms an Oxide.

If you ever need the symbol equation here it is too :

1. Mg + O --> MgO

2.Fe + O --> FeO

3.Cu + O--> CuO

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if 11.74 liters of gas at STP are pumped into a basketball, how many moles of gas are in the basketball? assume the basketball w
ser-zykov [4K]

Answer:

0.52 mol

Explanation:

Using the general gas equation formula:

PV = nRT

Where;

P = pressure (atm)

V = volume (Liters)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

At STP (standard temperature and pressure), temperature of a gas is 273K, while its pressure is 1 atm

Using PV = nRT

n = PV/RT

n = (1 × 11.74) ÷ (0.0821 × 273)

n = 11.74 ÷ 22.41

n = 0.52 mol

There are 0.52 moles in the basketball

6 0
3 years ago
What is the mole ratio of NH3 to N2?
Ksenya-84 [330]
To answer this question a balanced chemical equation is necessary. The correct equation is: N2 + 3H2 = 2NH3
From this equation, one mole of nitrogen react with 3 moles of hydrogen to give 2 moles of ammonia.
Therefore, the mole ratio of NH3 to N2 is 2:1
8 0
3 years ago
Do bases react with metals the same way that acids do?.
mina [271]

Answer:

Bases do not react with metals in the way that acids do

Explanation:

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6 0
2 years ago
Which of these 3 molecules is most polar? And which is the least polar? H2O, H2S, or SO2? Explain.
stepan [7]

Answer:so2

Explanation:

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How many joules of energy is required to bring a five-pound (1 pound = 454 g) bag
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