Answer:
For water, its mass in grams is equal to its volume in mililiters.
Explanation:
In general, you can calculate the mass of a substance multiplying its volume with the density:
Mass(g) = Volume(mL) × Density(g/mL)
With the water, it is easiest because density of water is 1g/mL, that means:
(Water) Mass = Volume × Density.
Mass = Volume × 1.
Mass = Volume
<h3>For water, its mass in grams is equal to its volume in mililiters.</h3>
<em>For example. if you have 5mL of water, its mass is 5g.</em>
Answer:
13414 years
Explanation:
From;
0.693/ t1/2 = 2.303/t log No/N
t1/2 = half life of C-14
t = age of the sample
No= initial amount of C-14
N = present amount of C-14
From the question, N = 0.2 No
Hence;
0.693/5700 = 2.303/t log No/0.2No
1.2 * 10^-4 = 2.303/t log 1/0.2
1.2 * 10^-4 = 1.6097/t
t = 1.6097/1.2 * 10^-4
t = 13414 years
Balanced chemical reaction:
3K₂SO₄(aq) + Ca₃(PO₄)₂(s) → 2K₃PO₄(aq) + 3CaSO₄(s).
Ionic reaction:
6K⁺(aq) + 3SO₄²⁻(aq) + Ca₃(PO₄)₂(s) → 6K⁺(aq) + 2PO₄³⁻(aq) + 3CaSO₄(s).
Net ionic reaction: 3SO₄²⁻(aq) + Ca₃(PO₄)₂(s) → 2PO₄³⁻(aq) + 3CaSO₄(s).
aq(aqueous) means
dissolved in water.
s(solid) means that salt not dissolved in water.
This chemical reaction is double displacement
reaction - cations and anions of the two
reactants switch places and form two new compounds.
