Some people think its francium and some people believe it is either sodium or potassium.
Some people believe that the most reactive element is francium because the larger the atom, the easier it is to get rid of the valence electrons and the easier it is to react with other atoms. so now if you look at the periodic table, francium has the largest radius and so that's why some people think its francium. but in my opinion, Francium AND Cesium.
Answer:
D.
because her right ear was closer to Michelle, who was the source of the sound
Answer:
30284.88J
Explanation:
Given parameters:
Mass of ethanol = 257g
Specific heat capacity of ethanol = 2.4J/g°C
Temperature change = 49.1°C
Unknown:
Amount of heat = ?
Solution:
The quantity of heat need to cause a temperature change on a body is given as;
H = m c Δt
where m is the mass
c is the specific heat capacity
Δt is the change in temperature
All units in proper dimensions. Input the parameters and solve for H;
H = 257 x 2.4 x 49.1
H = 30284.88J