This movement releases energy and generates seismic waves that can be recorded by specialized instruments used by scientists. The point on a fault at which the first movement or break occurs during an earthquake is called the earthquake's hypocenter

Explanation:

6 0

2 years ago

A Lewis structure of methane is shown below. What is the best description of methane’s shape?

Troyanec [42]

Answer:

D. Tetrahedral is the best description of methane's shape.

Explanation:

In that position hydrogen atoms are as far from one another as they can get. It is that way because hydrogen atoms repels each other.

4 0

3 years ago

Given 7.90 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100

Lana71 [14]

Answer : 9.293 g

Explanation : The reaction is

$C_{4}H_{8}O_{2} + C_{2}H_{5}OH ----\ \textgreater \ C_{6}H_{12}O_{2} + H_{2}O$

Here, if we assume the stoichiometric esterification ratio as 1:1 then,

no. of moles of $C_{4}H_{8}O_{2}$ = 7.05 g/ 88 = 8.011 $X 10^{-2}$ moles

so here, no. of moles of ethyl butyl rate = no. of moles of butyric acid ;

$\frac{m (C_{4}H_{8}O_{2})}{M (C_{4}H_{8}O_{2})} = \frac{m (C_{6}H_{12}O_{8})}{M (C_{6}H_{12}O_{8})}$

$m(C_{6}H_{12}O_{8}))$ = (7.05 /88.11) X 116.16 = 9.29 g

7 0

3 years ago

What is the net force when you combine a force of 15n north with a force of 12n south?

lilavasa [31]

3n of force North. Since the 12 cancel the other 12 out.

4 0

2 years ago