Identify the items in the list below that are examples of matter. check all that apply.

• idea
• iron
• sugar
• sound
• glass
• neon gas

can someone me plzz

The pressure in a fluid is affected by which characteristics of that fluid

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%