Answer:
BaCl2-- Barium dichloride✔️, the dash (-) has the problem.
Fe2O3-- Iron(iii)oxide✔️, it's not Iron(ii)oxide.
CsNO2-- it's Cesium nitrogen dioxide✔️, not Cesium nitrate.
Mg(HCO3)2-- Magnesium hydrogen carbonate✔️, not magnesium(II) bicarbonate
Answer:
Explanation:
(a) Balanced equation
Cu + 2AgNO₃ ⟶ Cu(NO₃)₂+ 2Ag
(b) Calculation
You want to convert atoms of Cu to atoms of Ag.
The atomic ratio is ratio is 2 atoms Ag:1 atom Cu
The example of radiation is When the Earth is heated by energy from the sun. The sun creates heat waves and that’s what makes it heat up
Answer:
25.2°C
Explanation:
Given parameters:
Energy applied to the water = 1000J
Mass of water = 50g
Final temperature = 30°C
Unknown:
Initial temperature = ?
Solution:
To solve this problem, we use the expression below:
H = m c Ф
H is the energy absorbed
m is the mass
c is the specific heat capacity
Ф is the change in temperature
1000 = 50 x 4.184 x (30 - initial temperature )
1000 = 209.2(30 - initial temperature)
4.78 = 30 - initial temperature
4.78 - 30 = - initial temperature
Initial temperature = 25.2°C
