Please help very simple: Which of the following are examples of homogeneous mixt

Question

Please help very simple:

Which of the following are examples of homogeneous mixtures? Which of the following are examples of heterogeneous mixtures? Several elements and compounds are given below. Select the compound(s). No N2 S8 NH3 Select the element(s). H2 CO SO2 CO2 Given the number of protons and electrons in each of the following common ions: Select the empirical formulas of the following compounds: Which of the following compounds are ionic? Name these compounds: Li2CP3 k2Cr2O7 NH4NO2 PF3 The following table gives numbers of electrons, protons, and neutrons in atoms or ions of a number of element. Which of the species are neutral? Which are negatively charged? Which are positively charged? Select the correct name for Selection A: Strontium chloride strontium dichloride

Explanation / Answer

Homogenous mixture : Cheddar cheese and Iced Tea with no ice

Heterogenous Mixture : Trail mix and Rocky road Ice-cream

Chemical Properties: Oxygen Burning, HF reacting with glass

Chemical Changes : Battery light getting dimmer

Combined answer :

milli gram = 10-3 gram

centi = 10-2 gram

deci = 10-1 gram

deca = 10 grams

hecto = 102 grams

kilo = 103 grams

mega = 106 grams

micro = 10-6 grams

nano = 10-9 grams

pico = 10-12 grams

Answer :

1459.8 * 10-1

33.8

6.2 * 10-3

9.9 *1010

Density = 9.44 g/cm^3

23Na11  and 64Ni28

Similar behviour :

Na : K

Cl = F

P : N

O : S

a) Diatomic molecule and compound

b) Polyatomic molecule and compound

c) Polyatomic molecule and not a compound

Compunds : NO , NH3

Elements : H2

No. of protons and electrons:

K+ = Protons = 19 Electrons = 18

Mn+2 : Protons = 25 Electrons : 23

C4- = Protons : 6 Electrons: 10

Empirical Formulae:

CN

CH

C9H20

P2O5

BH3

Ionic Compound :

KCl , SiCl4 and LiF

Names of compound :

Lithium Carbonate

Potassium Dichromate

Ammonium nitrite

Phosphorous Triflouride

A ---> Neutral

B ---> Negtively charged

C ---> Positivly charged

Mg(HCO3 ) 2   = Magnesium BiCarbonate (Mg+2, (HCO3-)

SrCl2 = Strontium chloride (Sr+2 , Cl- )

Manganese Chlorate = Mn(ClO4)2 (Mn+2 , ClO4- )

Cobalt ( || ) Phosphate ( Co3(PO4)2 )

Copper (|) Carbonate ( Cu+ , CO32- )

Hope this helps. Please rate it ASAP. Ask if you have any doubts.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.