the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group. sodium i think.
If they rub together it can make earthquakes and cause landslides or buildings to topple.
Answer:
it's both A and B for your answer
Explanation:
<u>both</u> genders can get this disease since it's being past down to their children or offspring, some may get that gene and some might not.
Answer:
30grams
Explanation:
To calculate the mass (number of grams of the solute) in the solution, we need to calculate the number of moles it contains first. We use the formula;
M = n÷ V
Where; M= Molarity or Molar concentration = 2.055M
n= number of moles= ?
V= Volume = 250mL
Volume in L is 250/1000 = 0.250L
n= M × V
n= 2.055 × 0.250
n= 0.51375moles
The mass is calculated using :
Mole (n) = mass (m) / molar mass (MM)
Molar mass of NaCl = 23 + 35.5
= 58.5g/mol
Mass = molar mass × mole
Mass = 58.5 × 0.51375
Mass = 30.0543
Therefore, the mass is 30grams
