Sulfur will float, and iron will sink because each will retain its properties.
“Iron will float, and sulfur will sink because each will lose its properties” is <em>incorrect</em>. A substance will lose its properties only if it reacts to form a new substance.
“Both will float because they are physically mixed” is <em>incorrect</em>. The substances in a mixture retain their properties.
“Both will float because they react chemically” is <em>incorrect</em>. Iron and sulfur do not react at room temperature. Even if they did, the iron sulfide would sink.
Answer:
20.1169 Km/hr
Explanation:
<em>10 laps around a 1320-foot track in 12 minutes.</em>
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Total distance = 10 * 1320 foot = 13200 foot
Time = 12 minutes
Converting to Kilometers and hour;
1 Foot is equal to 0.0003048 Kilometers;
13200 foot = x kilometer
Total distance = 4.02336 kilometer
Time = 12 / 60 = 0.2 hour
Speed = Distance / Time = 4.02336 / 0.2 = 20.1169 Km/hr
Answer:
your ans is battery emf v+1r
Answer:
0.022
Explanation:
milliter (ml) = 1 cubic centimeter (cc)= 0.001 liters (l) = 0.000001 cubic meters (m3).
1 ml = 0.061024 cubic inches (in3) ; 1 in3 = 16.4 ml.
1 ml = 0.000035 cubic feet (ft3); 1 ft3 = 28,317 ml.
1 ml = 2.64 x 10-4 U.S. gallons (gal); 1 gal = 4.55 x 103 ml.
Answer:
60.7 mole
Explanation:
for every 4 moles of iron 3 moles of oxygen is used.
So, moles of oxygen = = 60.675