Plz answer these asappp ineed yourwhere do clouds form? check all that apply at the ground in the upper atmosphere near earths surface where the air has low humidity where the atmosphere contains few particles 2.which are examples of convections currents ? check all that apply marshmallow toasting over a campfire rice moving in a pot of water that is being heated a radiator that emits warm air and draws in cool air a hot air balloon rising and falling in the atmosphere

Clouds are formed where the atmosphere contains few particles

Clouds are formed when there are small particles of vapors in the atmosphere or we can say that there are tiny invisible vapors present in the air. When the temperature falls, these particles gather together and they form clouds. Actually condensation process is responsible for the formation of these clouds hence we can say that particles present in the air are actually responsible for the formation of clouds.

The examples are as follows

When we take fluids into consideration, such as air or a liquid, and it is heated and then travels away from the source, it carries the thermal energy along with itself. This type of heat transfer is known as convection. The fluid above a hot surface expands, becomes less dense, and rises. So we can see that the above mentioned examples show the discussed scenario.

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz