That is a synthesis reaction.
Answer:
Mass = 0.139 kg
Explanation:
There is a formula in terms of force, acceleration and mass which is:
Force = mass × acceleration
Put the values into the formula.
5 = m × 36
m = 5 ÷ 36
<u>m = 0.139 kg</u>
Answer:
<h3>The answer is 113.1 cm³</h3>
Explanation:
The volume of a sphere is given by
where
r is the radius of the sphere
From the question
r = 3 cm
We have
We have the final answer as
<h3>113.1 cm³</h3>
Hope this helps you
Answer:
l and t
Explanation:
because they are in group one
The molar concentration of the solution is calculated as follows
find the moles of NaCl used to make the solution
moles = mass/molar mass
mass =7.83 g
molar mass =58.5 g/mol
moles = 7.83 g/ 58.5 g/mol = 0.134 moles
molarity ( concentration in mol/l) = number of moles/volume in liters
volume in liters = 90ml/1000 =0.09 liters
molarity is therefore = 0.134 moles/0.09 L =1.49 M