Answer:
Independent Variable: Days without sleep.
Dependent Variable: The side effects (hallucinating and becoming delirious)
Answer:
C) 107 g
Explanation:
Step 1: Calculate the molar mass of Ca(NO₃)₂
We can calculate the molar mass of Ca(NO₃)₂ by adding the masses of its elements.
M = 1 × Ca + 2 × N + 2 × 3 × O
M = 1 × 40.08 g/mol + 2 × 14.01 g/mol + 6 × 16.00 g/mol
M = 164.10 g/mol
Step 2: Calculate the mass corresponding to 0.650 moles of Ca(NO₃)₂
We multiply the number of moles by the molar mass.
0.650 mol × 164.10 g/mol = 107 g
If ionizaton energy is supplied than its an electron
Answer:
Titanium
Explanation:
BCC i.e. body-centered cubic is a type of non-primitive unit cell.
In bcc type crystal structure the atoms are arranged in the corners of the unit cell and also on the center of the body of that unit cell.
Among the given options Titanium is the only metal which does not form bcc type crystal structure.
Titanium forms hcp (hexagonal close packing ) type of crystal structure.
The coordination number of hcp is 12 and it is ABAB type lattice.
Answer:
234 g
Explanation:
We know we will need a balanced equation with masses and molar masses, so let’s gather all the information in one place.
M_r: 22.99 58.44
2Na + Cl₂ ⟶ 2NaCl
Mass/g: 92.0
1. Calculate the <em>moles of Na
</em>
Moles Na = 92.0 × 1/22.99
Moles Na = 4.002 mol Na
===============
2. Calculate the <em>moles of NaCl
</em>
The molar ratio is 2 mol NaCl:2 mol Na.
Moles of NaCl = 4.002 × 2/2
Moles of NaCl = 4.002 mol NaCl
===============
3. Calculate the <em>mass of NaCl
</em>
Mass of NaCl = 4.002 × 58.44
Mass of NaCl = 234 g
