Answer:
The ranking is given as; Water > Asphalt > Concrete > glass > Iron
Explanation:
The trick in solving this question is to assume a constant heat value; in this case i'll be choosing 100 J. Use this value to solve for the temperature difference. from that we can be able to rank the samples in order of their temperatures.
The formular to be used here is the;
H = MCΔT
Where;
H = Heat
M = Mass
C = Heat Capacity
ΔT = Temperature difference
ΔT = H/MC
In water;
ΔT = 100 / (10 * 4.184) = 2.39K
In Concrete;
ΔT = 100 / (10 * 0.88) = 11.36K
In asphalt;
ΔT = 100 / (10 * 0.920) = 10.87K
In glass;
ΔT = 100 / (10 * 0.84) = 11.9K
In iron;
ΔT = 100 / (10 * 0.448) = 22.3K
The samples with least temperature difference would have final temperatures and vice versa.
Our ranking is the given as; Water > Asphalt > Concrete > glass > Iron
Carbon has four electrovalent electrons which it uses to form covalent bonds in order to attain octet structure. Thus, carbon forms 4 covalent bonds in electrically neutral compounds.
Answer:
0,5019 m
Explanation:
Expansividad lineal = aumento de longitud / longitud original × aumento de temperatura
Expansividad lineal = 19x 10-6 ° C-1
Aumento de temperatura = 50 ° C - 30 ° C-1 = 20 ° C
Longitud original = 0,5 m
Sustitución de valores;
aumento de longitud = 19 x 10-6 ° C-1 × 20 ° C × 0,5 m
Aumento de longitud = 0,0019 m
Nueva longitud = aumento de la longitud + longitud original
Nueva longitud = 0,5 m + 0,0019 m
Nueva longitud = 0,5019 m
Answer:
0.47g of 
Explanation:
1. Balanced equation:
3NaHCO₃(aq) + H₃C₆H₅O₇(aq) --------> 3CO₂(g) + 3H₂O(l) + Na₃C₆H₅O₇(aq)
2. Find the limiting reagent between the reactants:
-For the 
:
Divide the number of moles between the stoichiometric coefficient of the :
-For the 
:
Divide the number of moles between the stoichiometric coefficient of the :
The smallest number is the 0.004 therefore, the limiting reagent is the sodium bicarbonate.
3. Calculate the grams of carbon dioxide:
Answer:
Wind is caused by differences of pressure in the Earth's atmosphere. Air from a high pressure area will move towards an area of low pressure. High winds are caused when air moves between areas with large differences in air pressure.
Explanation:
