All categories

3 years ago

Is anyone good at chemistry if so can someone help me please ? (NO LINKS)

Chemistry

1 answer:

Oduvanchick [21]3 years ago

4 0

Strong acid + strong base = neutral salt;

strong acid + weak base = acidic salt;

weak acid + strong base = basic salt;

weak acid + weak base = it depends on the relative strength of the acid and base.

1. NaOH is a strong base; CH3COOH is a weak acid. The resulting salt, CH3COONa, will be basic (b).

2. HBr is a strong acid; NH3 is a weak base. The resulting salt, NH4Br, will be acidic (c).

3. H2SO4 is a strong acid; Ca(OH)2 is a strong base. The resulting salt, CaSO4, will be neutral (a).

You might be interested in

The balanced equation below represents the decomposition of potassium chlorate.

dezoksy [38]

The oxidation number of chlorine in the reactant can be determined by K ion and O ion. K ion is +1 and O ion is -2. And the Cl is +5. The gas has the greatest entropy and the solid has the least. In the production, there are solid and gas. So it has more entropy than the reactants with solid only.

6 0

3 years ago

Balance NO + 02 -- NO2

Simora [160]

Answer:

NO + O2 -> NO2

it is balanced

3 0

3 years ago

If a 1.00 mL sample of the reaction mixture for the equilibrium constant experiment required 32.40 mL of 0.258 M NaOH to titrate

andrey2020 [161]

Answer:

The concentration of acetic acid is 8.36 M

Explanation:

Step 1: Data given

Volume of acetic acid = 1.00 mL = 0.001 L

Volume of NaOH = 32.40 mL = 0.03240 L

Molarity of NaOH = 0.258 M

Step 2: The balanced equation

CH3COOH + NaOH → CH3COONa + H2O

Step 3: Calculate the concentration of the acetic acid

b*Ca*Va = a*Cb*Vb

⇒with b = the coefficient of NaOH = 1

⇒with Ca = the concentration of CH3COOH = TO BE DETERMINED

⇒with Va = the volume of CH3COOH = 1.00 mL = 0.001L

⇒with a = the coefficient of CH3COOH = 1

⇒with Cb = the concentration of NaOH = 0.258 M

⇒with Vb = the volume of NaOH = 32.40 mL = 0.03240 L

Ca * 0.001 L = 0.258 * 0.03240

Ca = 8.36 M

The concentration of acetic acid is 8.36 M

6 0

3 years ago

Determine the number of protons and neutrons in an atom of Uranium - 238

Mila [183]

Answer:

146

Explanation:

uranium is 92 and the mass number of the isotope is given as a 238 therefore it is not the two protons 92 electrons and

real explanation Google it

7 0

3 years ago

What is the state of the substance at room temperature (20°c)

soldier1979 [14.2K]

Answer:

dez nuts. the forth quauter in ur girls buttr

5 0

3 years ago