The mass of hematite that contains 8.0×10³ kg of iron is 2.29 × 10⁴ kg.
<h3>What are iron ores?</h3>
Iron ores refers to minerals in which iron occur in combined form found in the earth's crust.
Some ores of iron include:
- hematite,
- magnetite,
- limonite, and
- siderite.
Molar mass of hematite, Fe₂O₃ = 160 g/mol
Molar mass iron = 56 g/mol
Percent mass of iron in hematite = 56/160 = 35%
The mass of hematite that contains 8.0×10³ kg of iron = 8.0 × 10³kg/0.35 = 2.29 × 10⁴ kg.
Therefore, the mass of hematite that contains 8.0×10³ kg of iron is 2.29 × 10⁴ kg.
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Answer:
Charle's Law
Explanation:
<em>...cold it goes flat because the volume of air inside the ball has been reduced. </em>
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In this scenario, the lower the temperature the lower the volume. This means that there's a direct proportional relationship between the volume and temperature.
This relationship is presented by Charles law. Charles law states that the volume occupied by a fixed mass of gas is directly proportional to its absolute temperature.
Answer:
The part that is put in the same time as ruthenium, but has a greater number of atoms than silver.
The answer is B. Power plants are efficient though not all heat is managed to be converted.
Answer:
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