if 105 grams burns completely
therefore
105 ×22.4/48=49
Answer:
C. naturally uncombined with other elements.
Explanation: Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air.
Answer is: <span>B) June 21.
This is summer solstice or midsummer.
</span>Summer solstice occurs when a planet's geographical pole<span> on Northern H</span>emisphere is most inclined toward the Sun. <span>Earth's maximum </span>axial tilt<span> toward the </span>Sun is 23.44° and <span>the Sun reaches its </span>highest altitude<span> of the year on the summer </span><span>solstice.</span>
<span>Jupiter and Saturn
The Jovian planets are Jupiter, Saturn, Neptune, and Uranus.
Percent hydrogen by volume:
jupiter: 89.8%
saturn: 96.3%
neptune: 80%
uranus: 83%</span>
Answer:
last choice
Explanation:
Specific heat of a metal is j/kg-c
It says nothing about melting point or heat of fusion
A = twice B = 2 * j/kg-c B = j/kg-c
if j is constant and mass is the same we can write this more like
A = 2 /C and B = 1/C
or A ~ C/2 and B~ C
now you can see that the temp change in A will be 1/2 that of B