6. What happens to make the water (in the picture) move down?

Explanation:

Camera Settings for Photographing Water in Motion

Use a shutter speed of 1/15 of a second or slower. ...

Use a low ISO setting. ...

Use a tripod. ...

Use a neutral density filter in bright light. ...

Use a fast shutter speed when you want to freeze the motion of a raging river.

When you compose the image, position the horizon line in the lower third of the image.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o