P-NUT

I was wondering if there are any secrets or fun facts that the cops know that isn't public when it comes to pulling over anybody. Like for example that at the end of the month you all are out cause you have to make your quota kind of stuff or the white lines on the road indicate a spot your most likely to be at.

1.Which is a characteristic of all nonmetals?

a.Always gases

b.Poor conductors of heat

c.Shiny in appearance

d.Combine only with metals

2.Which is an anion?

a.Cl-1

b.H2

c.Fe

d.Fe+2

3.Physical properties include all the following except

a.Boiling point

b.Reactivity with other substances

c.Odor

d.Specific gravity

4.Which is a cation?

a.A permanganate ion

b.An oxide ion

c.A copper (I) ion

d.A bromide ion

5.Which element is in the s-block of the periodic table?

a.Na

b.S

c.Pm

d.Mn

1. Which are the two Bronsted-Lowry acids in the following equation?

H2S + H2O HS-1 + H3O+1

a.HS-1 and H2O

b.H2S and HS-1

c.H2S and H3O+1

d.H3O+1 and H2O

2.Which is a conjugate acid base pair in the following equation?

HF + H2O H3O+1 + F-1

a.HF and H3O+1

b.HF and H2O

c.H3O+1 and F-1

d.HF and F-1

3.A 0.1 M HNO3 solution and a 0.1 M HNO2 solution have the same pH.

a.True

b.False

4.At 25 °C the concentration of H +1 in pure water is 1 X 10-7 M.

a.True

b. False

5.pH is obtained from the expression

a.pH = - log [OH-1]

b.pH = log [OH-1]

c.pH = - log [H+1]

d.pH = log [H+1]

1 In which direction will the point of equilibrium shift when a catalyst is added to the following equilibrium system?

KNO3 + 34.7 kJ K+1 (aq) + NO3-1 (aq)

a.Shift to the right

b.Shift to the left

c.No shift

2.The magnitude of Keq depends on

a.Initial concentration of reactants

b.Presence of a catalyst

c.Temperature

d.Volume of reaction vessel

3.In which direction will the point of equilibrium shift when the pressure is decreased in the following equilibrium?

H2 (g) + Cl2 (g) 2 HCl (g)

a.Shift to the right

b.Shift to the left

c.No shift

4.The equilibrium constant can change significantly with a change in

a.Concentration

b.Catalyst

c.Temperature

d.Pressure

5.In the following equilibrium, when sodium ion is removed, the concentration of chloride ion will

Na+1 (aq) + Cl-1 (aq) NaCl (s)

a.Increase

b.Decrease

c.Remain the same

Want to check to see if my answers are correct. Thank you for the help in advance!

7.) In each of the following unbalanced equations, identify the oxidized element and the reduced element. Then, identify the oxidizing agent and the reducing agent.

a.) Cu+AgNO3 --> Ag+Cu(NO3)2

b.) Zn +HCI ---> H2+ZnCl2

Trying to correct/tell what one's are wrong on my daughter's homework and well, plain and simple I can't, can anyone help please?

1. Which is the common ion when hydrochloric acid is added to a saturated solution of sodium chloride?

a.Hydrogen ion

b.Chloride ion

c.Sodium ion

d.Hydroxide ion

2.What is the pH of a 0.0010 M HCl solution?

a.1.0 X 10-3

b.3.0

c.11

d.4.0

3.In the following equilibrium, when Fe+3 ion is added, the concentration of Fe(SCN)+2 ion will

Fe+3 + SCN-1 Fe(SCN)+2

a.Increase

b.Decrease

c.Remain the same

4.In the following equilibrium, as volume of the reaction vessel increases, the point of equilibrium will

2 HF (g) H2 (g) + F2 (g)

a.Shift to the right

b.Shift to the left

c.Not shift

5.The Ksp of silver iodide is 8.3 X 10-17. What is the solubility of silver iodide in g/L?

a.2.1 X 10-6

b.1.6 X 10-30

c.1.9 X 10-14

d.6.1 X 10-21

6.Hydrocyanic acid, HCN, is a weak acid whose Ka value is 4.0 X 10-10. What is the pH of a 0.1 M solution of HCN?

a.1.0

b.5.2

c.9.4

d.10.

7.A solution of NaNO3 would be

a.Acidic

b.Basic

c.Neutral

8.What is the pH of a 0.140 M HCl solution?

a.0.854

b.13.2

c.0.140

d.3.66

9.A solution in which equilibrium is reached between dissolved and undissolved solute is

a.Saturated

b.Unsaturated

c.Supersaturated

10.In all aqueous solution the [ H+1 ] is equal to the [ OH-1 ].

a.True

b.False

11.In aqueous solution the [ H+1 ] is 1.4 X 10-4 M. The [OH-1 ] in the same solution is

a.1.4 X 10-2 M

b.1.4 X 10-7 M

c.1.0 X 10-7 M

d.7.1 X 10-11 M

12.Calculate the value of Keq for the following equilibrium when [ H2 ] = 0.228 M, [ I2 ] = 0.228 M, and [ HI ] =1.544 M.

H2 (g) + I2 (g) 2 HI (g)

a.29.7

b.0.0337

c.0.0219

d.45.9

13. Hydrosulfuric acid, H2S, is a weak acid whose Ka value is 9.5 X 10-8. What is the [ H+1 ] in a 4.0 M solution of H2S?

a.6.0 X 10-1 M

b.6.2 X 10-4 M

c.4.0 M

d.3.8 X 10-7 M

14.What is the [ OH-1 ] in a 0.01 M KOH solution?

a.1 X 10-2 M

b.1 X 10-14 M

c.1 X 10-7 M

d.1 X 10-12 M

15.Which salt would produce a basic solution?

a.KBr

b.NaNO2

c.CuCl

d.NH4Cl

It's for my daughter's chemistry class. She asked for my help ( and not wanting to disappoint her) and I have no clue. Can someone please help me out.

1 For the following equations, tell in which direction, left or right, the equilibrium will shift when these changes are made: The temperature is increased, the pressure is increased by decreasing the volume of the reaction vessel, and a catalyst is added.

a. 3 02(g) + 271 k] -->(arrows back and forth) 2 03(g)

b. CH4(g) + Cl2(g) --->(arrows back and forth) CH3Cl(g) + HCI(g) + 110k]

c. 2 NO(g) + 2 H2(g) -->(arrows back and forth) N2(g) +2H20(g)+665 k]

2 Decide whether these salts form an acidic, basic, or neutral solution when dissolved in water:

a. CaBr2

b. Al(NO3)3

c. NaCN

D. K3PO4

3 One of the important pH-regulating systems in the blood consists of a carbonic acid-sodium hydrogen carbonate buffer:

H2CO3(aq) --> H+(aq) + HCO3-(aq)

NaHCO3(aq)--->(arrows back and forth) NA+(aq)+HCO3-(aq)

Explain how this buffer resist changes in pH when excess acid, H+, gets into the bloodstream.

Trying to help my daughter do her homework. I told her I would check her answers to see if there right. ( I didn't tell her I didn't know anything about chemistry). I don't want her to know. Please if anyone can help me so I can correct her homework here please. Don't feel like losing my ego lol

1.What is the net ionic equation when hydrobromic acid reacts with potassium hydroxide?

Answer

a.H+1 + OH-1 → HOH

b.H+1 + Br--1 → HBr

c.K+1 + OH-1 → KOH

d.K+1 + H-1→ KH

2.Which are the two Bronsted-Lowry bases in the following equation?

NH3 + H2O NH2-1 + H3O+1

Answer

a.H2O and NH2-1

b.NH3 and H2O

c.H3O+1 and NH3

d.NH2-1 and H3O+1

3.The hydronium ion is responsible for the properties of

Answer

a.Acids

b.Bases

c.Salts

4.Arrhenius defined an acid as a substance whose aqueous solution contains an excess of

Answer

a.Sodium ion

b.Hydroxide ion

c.Chloride ion

d.Hydrogen ion

5.Which type of solution would have a sour taste and turn litmus red?

Answer

a.Acid

b.Base

c.Salt

6. Which is a strong electrolyte?

Answer

a.Copper(I) hydroxide

b.Calcium hydroxide

c.Copper(II) hydroxide

d.Ammonium hydroxide

7. Which will ionize when placed in water?

Answer

a.KOH

b.HCl

c.KCl

d.LiCl

8.What is the concentration of a H2SO4 solution if 15.0 mL of the solution is neutralized by 3.60 mL of a 0.65 M Ca(OH)2 solution?

Answer

a.0.078 M

b.0.16 M

c.0.31 M

d.2.7 M

9. What is the concentration of calcium ion in a 2.0 M solution of calcium chloride?

Answer

a.1.0 M

b.2.0 M

c.3.0 M

d.4.0 M

10.Which is a conjugate acid base pair in the following equation?

H3PO4 + H2O H3O+1 + H2PO4-1

Answer

a.H3PO4 and H2O

b.H3O+1 and H2PO4 -1

c.H2O and H3O+1

d.H3PO4 and H3O+1

11.What is the concentration of a HCl solution if 25.0 mL of the solution is neutralized by 40.0 mL of a 0.30 M KOH solution?

Answer

a.0.19 M

b.300 M

c.46.9 M

d.0.48 M

12.In a basic solution the

Answer

a.Concentration of hydronium ion is greater than that of hydroxide ion

b.Concentration of hydroxide ion is greater than that of hydronium ion

c.Concentration of hydronium ion and hydroxide ion are equal

13.What is the conjugate base of HS-1?

Answer

a.H2S

b.S-2

c.H+1

d.OH-1

14.The hydroxide ion is responsible for the properties of

Answer

a.Acids

b.Bases

c.Salts

15.Which pH is neutral?

Answer

a.2

b.4

c.5

d.7

Carbonates reach with acids to form a salt, water, and carbon dioxide gas. When 50.0 g of calcium carbonate are reacted with sufficient hydrochloric acid, how many grams of calcium chloride will be produced? ( Write a balanced equation first)

Very confused about this problem. Can someone help please! I don't even know where to begin!

Phosphine (PH3) can be prepared by the hydrolysis of calcium phosphide, Ca3P2:

Ca3P2+ 6 H20 --> 3 Ca(OH)2 + 2 PH3

Based on this equation. which of the following statements are correct? Show evidence to support your answer.

a. One mole of Ca3P2 Produces 2 mol of PH3

b. One gram of Ca3P2 produces 2g of PH3

c. Three moles of Ca( OH)2 are produced for each 2 mol of PH3 produced

d. The mole ratio between phosphine and calcium phosphide is

2mol PH3 (Divided by) 1 mol Ca3P2

e. When 2.0 mol of Ca3P2 and 3.0 mol of H20 react, 4.0 mol of PH3 can be formed

f. When 2.0 mol of Ca3P2 and 15.0 mol of H20 react, 6.0 mol of Ca(OH)2 can be formed.

A 25.0g sample of magnesium at 22.0º C absorbs 356.3 J of heat. The temperature of the magnesium rises to 36.5º C. What is the specific heat of the magnesium?

a.0.648 J/gº C

b.0.390 J/gº C

c.0.444 J/gº C

d.0.983 J/gº C

According to the Law of Conservation of Mass, matter can be

a.Created

b.Destroyed

c.created and destroyed

d.converted from one form to another

How many total atoms are represented in each formula? I'm having trouble figuring it out

1. Co(CIO3)2

2. CH3CH2COOH

I am about to lose my job due to some circumstances out of my control and to make matters worse I'm 8 months pregnant. I've been taking online surveys and crap I'm just trying to find a good way to make extra money since I'm going to be stuck home for awhile at least for the next 3 months since I could have this baby any day.

apo tin ameriki kalo pasxa kai kali anastasei se olous tous filous mou kai files agapi kai xara se olon ton planiti polla filia sto sesklo to pio omorfo xorio tou kosmou . What is this translated in English?

My fiance said to another girl he couldnt wait to see her and tbow her on sunday. In a guy point of view what does he mean but tbow her?

My fiance said to another girl he couldnt wait to see her and tbow her on sunday. In a guy point of view what does he mean but tbow her?

My fiance said to another girl he couldnt wait to see her and tbow her on sunday. In a guy point of view what does he mean but tbow her?

My man is calling this girl pita and she calls him her pita WHAT THE DOES THAT MEAN!

My man is calling this girl pita and she calls him her pita WHAT THE DOES THAT MEAN!