Answer:
the number of moles is 0.279
Explanation:
The computation of the number of moles of calcium nitrate, is shown below;
We know that
Number of moles = mass of substance ÷ molecular weight
= 45.8 g ÷ 164.088
= 0.279moles
hence, the number of moles is 0.279
We simply applied the above formula so that the correct value could come
<h3>
Answer:</h3>
60 %
<h3>
Explanation:</h3>
We are given ;
- Work input as 5000 Joules
- Work output as 3000 Joules
We are required to calculate the efficiency of the machine;
What is efficiency?
- Efficiency is the ratio of work output to inputs expressed as a percentage.
Efficiency = (work output ÷ work input) × 100
= (3000 J ÷ 5000 J) × 100
= 60 %
Thus, the efficiency of the machine is 60%.
In a primitive cubic unit cell, there is one atom per unit cell. And 1/4 of the atom can be found in the corners of the cell. Therefore, one length of the cubic unit cell constitutes 2 radii. The radius of an atom of Gallium would be 362 pm / 2 = 181 pm.
Answer:What are the chances that they have an offspring with sharp claws and ... An organism carrying two identical alleles for a particular gene would be considered ____ for that trait ... that all the offspring were the same and exactly like the parent plants. ... causes cardiovascular disease, which may result in death at a young age.
Explanation:
Answer:
nano3+agcl2
Explanation:
double displacement reaction