Write the reaction responsible for the solution being basic. do not include spectator ions. with naf being the salt that produces a basic solution in water

When NaF dissolve in water, it completely dissociates into Na⁺ and F⁻. The sodium ion that is Na⁺ do not react with water while the fluoride ion reacts with water and form hydrogen fluoride and hydroxide ion.

That can be shown in the reaction:

F⁻ + H₂O--->HF + OH⁻

Also using thumb rule it can be predicted that when salt containing anion of weak acid and cation of strong base, dissolve in water, basic solution is produced.

The equation that makes NaF to produce a basic solution is;  Na^+(aq) + OH^-(aq) > NaOH(aq)

In a chemical reaction, that do not undergo any change from left to right in a reaction equation are called the spectator ions. In the reaction;

Hence, the equation that makes NaF to produce a basic solution is;  Na^+(aq) + OH^-(aq) > NaOH(aq)

Learn more about basic solution: link

when 25.0 ml of 0.700 mol/l naoh was mixed in a calorimeter with 25.0 ml of 0.700 mol/l hcl, both initially at 20.0 °c, the temperature increased to 22.1 °c. the heat capacity of the calorimeter is 279 j/°c.

the equation for the reaction is:

naoh + hcl → nacl + h₂o

moles of hcl = 0.0250 l hcl ×

0.700

mol hcl

1 l hcl = 0.0175 mol hcl

volume of solution = (25.0 + 25.0) ml = 50.0 ml

mass of solution = 50.0 ml soln ×

1.00

ml soln

= 50.0 g soln

δt=t2-t1

= (22.1 – 20.0) °c = 2.1 °c

the heats involved are

heat from neutralization + heat to warm solution + heat to warm calorimeter = 0

q1+q2+q3=0

nδh+mcδt+cδt=0

0.0175 mol ×

δh

+ 50.0 g × 4.184 j·g⁻¹°c⁻¹ × 2.1 °c + 279 j°c⁻¹ × 2.1 °c = 0

0.0175 mol ×

δh

+ 439.32 j + 585.9 j = 0

0.0175 mol ×

δh

= -1025.22 j

δh=1025.22j0.0175 mol= -58 600 j/mol = -58.6 kj/mol

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.