3 years ago

Litmus paper can be used to determine the _______ of a substance.

Chemistry

1 answer:

givi [52]3 years ago

6 0

Answer: relative ph

Explanation:

You might be interested in

Inside the room the air is often warmer near the ceiling than near the floor. Which of the following accounts for the difference

Rudiy27

The correct answer would be C. Convection, which describes that heat rises.

3 0

3 years ago

8.5ml of a sample of sea water solution was added to a 44.317g evaporating dish the combination weighted 52.987g after evaporati

Ratling [72]

Answer: There is no question, but we can calculate a couple of items:

Density of sea water sample = (52.987g-44.317g)/8.5ml

Inorganic content of sample (mostly salts) = (44.599g-44.317g)/(52.987g-44.317g) x 100% = percent inorganics in water sample

Explanation:

5 0

3 years ago

What are 4 other gases in the atmosphere besides oxegen and nitergin?

Levart [38]

Helium, neon,nitrogen and argon

5 0

3 years ago

Calculate the energy (in kJ) required to heat 10.1 g of liquid water from 55 oC to 100 oC and change it to steam at 100 oC. The

Maksim231197 [3]

Answer:

$\large\boxed{\large\boxed{24.6kJ}}$

Explanation:

1. Energy to heat the liquid water from 55ºC to 100ºC

$Q=m\times C\times \Delta T$

m = 10.1g

C = 4.18g/JºC

ΔT = 100ºC - 55ºC = 45ºC

$Q=10.1g\times 4.18J/g\ºC\times 45\ºC=1,899.81J$

2. Energy to change the liquid to steam at 100ºC

$L=\lambda \times n$

λ = 40.6kJ/mol

n = 10.1g / 18.015g/mol = 0.5606mol

$L=40.6kJ/mol\times 0.5604mol=22.76214kJ=22,762.14J$

3. Total energy

$1,899.81J+22,762.14J=24,661.95J\approx24,662J\approx24.6kJ$

7 0

3 years ago

What do all fossil fuels have in common?

Bess [88]

Answer:

Your answer would be D, they are all non-renewable energy sources. Hope this helps!

6 0

3 years ago