Please help me! i only need one more to be the best score
Uh, not sure if you're asking or not, but during beta decay TI-207 emits a beta particle.
Answer:
a) <u>Balanced Equation</u>
2NaCl (aq) + (NH₄)₂CO₃ (aq) → Na₂CO₃ (aq) + 2NH₄Cl (aq)
b) <u>Total Ionic Equation</u>
2Na⁺ (aq) + 2Cl⁻ (aq) + 2NH₄⁺ (aq) + CO₃ ²⁻ (aq) → 2Na⁺ (aq) + CO₃²⁻ (aq) + 2NH₄⁺ (aq) + 2Cl⁻ (aq)
c) <u>Net Ionic Equation</u>
All are spectator ions, so no net ionic equation.
Answer:
Hi there!
Your answer is
Mass: 12
&
Electrons:5
Explanation:
The electrons in a neutral atom is the same as the # of Protons!
Answer:
Option C = object B by 1 gram per cubic cm.
Explanation:
Given data:
Mass of object A = 12 g
Volume of object A = 8 cm³
Mass of object B = 20 g
Volume of object B = 8 cm³
Densities = ?
Solution:
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
D=m/v
D= density
m=mass
V=volume
Symbol:
The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
Density of object A:
d = m/v
d = 12 g/ 8 cm³
d = 1.5 g/cm³
Density of object B:
d = m/v
d = 20 g/ 8 cm³
d = 2.5 g/cm³
object b has high density.
