Answer:
All ions must a overall charge
Explanation:
neither created nor destroyed in chemical reactions. In other words, themass of any one element at the beginning of a reaction will equal the mass<span> of that element at the end of the reaction.</span>
Answer:
they condensate
Explanation:
for the example let's use water vapor when gas particles are cooled down they slow done and then they change the state of matter in this case it turns into a liquid hope this helps
Answer:C2H6N
Explanation:
Putrescine formula is C4H12N2
Assuming 100g sample is present
The percent changes to grams and it is converted to moles by dividing it with the atomic masses.
C= 54.50g/12 = 4.541moles
H = 13.73g/1 = 13.73moles
N= 31.77g/14 = 2.269moles
Divide through with the smallest moles value.
C= 4.541/2.269 = 2
H= 13.73/2.269=6
N= 2.269/2.269=1
Therefore the empirical formula is
C2H6N
Answer:
1867.88g
Explanation:
The density of a substance can be calculated by dividing its mass by its volume. That is;
Density = mass/volume
In this question, the density of water is given as is 0.9870 g/mL, volume of water held by the container is 64 fluid ounces.
The unit, however, must be the same in order to work.
Since; 29.57 mL = 1 fluid ounce
64 fluid ounces will be 64 × 29.57 mL
= 1892.48 mL
Using the formula above, the mass (m)= density (p) × volume (v)
Mass = 1892.48mL × 0.9870 g/mL
Mass= 1867.8776
Mass = 1867.88g
