Answer:
CStO3
Explanation:
What is need to be done here is to first divide the percentage compositions by the respective atomic masses. Atomic mass of strontium is 90, that of oxygen is 16 and that of carbon is 12.
Let’s proceed with the divisions:
St = 59/90 = 0.656
O = 33/16 = 2.0625
C = 8/12 = 0.667
Now, we divide through all by the smallest answer which is 0.656:
St = 0.656/0.656 = 1
O = 2.0625/0.656 = 3.144 = 3
C = 0.667/0.656 = 1.0167 = 1
The empirical formula is thus CStO3
Answer:
C. Infinitely Many Solutions
<u>Explanation:</u>
No solution case : This is the case when all given variables are not equal to any constant, for example: there is one row of zeros in matrix <em>e.g 0=3</em>. matrix B don't have any zero row. <u>So, Not True. </u>
One Solution case: This is the case when all variables are independent variables like if they are equal to some constant. <em>e.g x=1,y=2,z=4 </em>, Matrix B have more than one variable in first row due to which it made equation look like <em>x+y=-5. so matrix B can't have only one solution. </em><u>So, Not True.</u>
Infinitely Many Solutions case: when there is one or more variables which is not equal to any constant and acting as linearly dependent variable, then that matrix have infinite solutions. Matrix B have that variable which is linearly dependent as show in the attachment solution.<u> So, True. </u>
Answer:
according to newtons second law
F=ma
mass of the balloon =0.020 kg
gravity = 9.8m/8^2
force = 0.020 x 9.8
= 1.96 N
x (times) hope it helps