It's a FUSION reaction because Iron and Oxygen react together to make Iron Oxide (rust) and it's EXOTHERMIC because the reaction forms heat (stated above), which means it's releasing energy.
Answer:
a) Mass of solid W crystallized out 0°C is 141.564 g
b) 91.92% is the percent recovery.
Explanation:
The solubility of solid W in water at 100°C = 21.3 g/100 mL
Volume of water at 100C required to dissolve 154.0 g of W: x
723.0 mL of water will dissolve 154.0 grams of solid W.
The solubility of solid W in water at 0°C = 1.72 g/100 mL
Mass of W soluble in 723.00 mL of water at 0°C = m
a) Mass of solid W crystallized out 0°C : 154.0 g- 12.436 g=141.564 g
b) Percent recovery of solid at 0°C:
91.92% is the percent recovery.
Answer:
SnCrO4
Explanation:
Tin has a charge of 2+
Chromate has a charge of 2-,
therefor, the formula is equal.
According to the research, levers are used to modify or generate a force and transmit displacement.
<h3>What are levers?</h3>
It is a simple machine composed of a rigid bar of some moderately resistant material, which rotates freely on a support point.
It can be used to maximize the mechanical force applied to an object, increasing its speed or the distance it travels, by applying a proportionally smaller amount of force.
Therefore, we can conclude that according to the research, levers are used to modify or generate a force and transmit displacement.
Learn more about levers here: brainly.com/question/19732425
#SPJ1
292.5 miles because 65x4.5=292.5
