Answer:
i have the same paper im working on now taking me forever u got the answers?
Explanation:
Answer:
F,O,N,C,B
Explanation:
SINCE THE ELECTRONEGATIVITY INCREASES ACROSS THE PERIOD THE ELECTRONS ARE TIGHTLY PACKED AROUND THE NEUCLEOUS MAKING THE RADIUS SMALL
1. How many moles of H₂ would be required to produce 9.0 grams of water?
The answer would be approximately 0.4495 moles of H₂.
2. What mass of H₂O is formed when excess H₂ reacts with 64 g of O₂?
A mass of 72g H₂O will be formed.
3.How many moles of SnF₂ will be produced along with 48 grams of H₂?
Approximately 23.811 moles of SnF₂ will be produced.
4. How many moles of sodium are required to produce 40. grams of NaOH?
The answer would be approximately 1.000722 moles of sodium.
I could only answer 4 of them so sorry, I had like check over it.
The last 2 were super confusing for me.
<h2><em>Answer:
</em></h2><h2><em>
</em></h2><h2><em>d = 0.3 g/cm³
</em></h2><h2><em>
</em></h2><h2><em>Explanation:
</em></h2><h2><em>
</em></h2><h2><em>Density:
</em></h2><h2><em>
</em></h2><h2><em>Density is equal to the mass of substance divided by its volume.
</em></h2><h2><em>
</em></h2><h2><em>Units:
</em></h2><h2><em>
</em></h2><h2><em>SI unit of density is Kg/m3.
</em></h2><h2><em>
</em></h2><h2><em>Other units are given below,
</em></h2><h2><em>
</em></h2><h2><em>g/cm3, g/mL , kg/L
</em></h2><h2><em>
</em></h2><h2><em>Formula:
</em></h2><h2><em>
</em></h2><h2><em>D=m/v
</em></h2><h2><em>
</em></h2><h2><em>D= density
</em></h2><h2><em>
</em></h2><h2><em>m=mass
</em></h2><h2><em>
</em></h2><h2><em>V=volume
</em></h2><h2><em>
</em></h2><h2><em>Symbol:
</em></h2><h2><em>
</em></h2><h2><em>The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
</em></h2><h2><em>
</em></h2><h2><em>Given data:
</em></h2><h2><em>
</em></h2><h2><em>Mass = 6 g
</em></h2><h2><em>
</em></h2><h2><em>Volume = 20 cm³
</em></h2><h2><em>
</em></h2><h2><em>Density = ?
</em></h2><h2><em>
</em></h2><h2><em>Solution:
</em></h2><h2><em>
</em></h2><h2><em>d = m/v
</em></h2><h2><em>
</em></h2><h2><em>d = 6g/20 cm³
</em></h2><h2><em>
</em></h2><h2><em>d = 0.3 g/cm³</em></h2>
C would be the only logical answer if you really think about what it’s saying about the instrument.