1 kg ---------- 1000 g
4.84 kg ------ ?
4.84 x 1000 / 1 => 4840 g
D = m / V
7.86 =4840 / V
V = 4840 / 7.86
V = 615.77 cm³
1 cm³ ------------ 0.01 dL
615.77 ----- ?
615.77 x 0.01 / 1
= 6.1577<span> dL</span>
Answer:
Im pretty sure its alpha
Explanation:
Alpha radiation has been identified as helium nuclei that have been stripped of their planetary electrons, and each consists of two protons and two neutrons.
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure Y--X(with 2 lone pairs)--Y can be abbreviated as XY2Z2
We see that in the left-hand side of the equation, the side of the reactants, that we have 2 moles of Na and bromine is in it's diatomic form.
Therefore, we have 2 moles of each of these elements. When we combine the sodium bromide molecule in the products, we are going to want to keep these molar amounts the same. So we are going to need to put a 2 in front of the sodium bromide in order to correctly balance this equation.
So the coefficient for sodium bromide (NaBr) in this equation is 2.
