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katen-ka-za [31]
2 years ago
8

What does the salinity of sea water represent?

Chemistry
1 answer:
kap26 [50]2 years ago
4 0

Answer:

the concentration of salt dissolved in the ocean

Explanation:

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It’s very confusing pls help me :)
dangina [55]
Physical is texture. chemical is ability to react with other elements. chemical is ability to conduct heat. hardness is physical. lack of ability to rust is chemical. state is physical.
7 0
2 years ago
What frequency corresponds to an absorption line at 460 nm?
MAXImum [283]

Answer:

6.52 × 10^14 Hz

i don't know if that's right tbh

4 0
3 years ago
Read 2 more answers
The amount of heat absorbed by the alcohol was determined to be 1.17kJ. Given that the specific heat of the alcohol is 2.42J/gC
quester [9]

Answer:

                      ΔT  =  20.06 °C

Explanation:

The equation used for this problem is as follow,

                                    Q  =  m Cp ΔT   ----- (1)

Where;

           Q  =  Heat  =  1.17 kJ = 1170 J

           m  =  mass  =  24.1 g

           Cp  =  Specific Heat Capacity  =  2.42 J.g⁻¹.°C⁻¹

           ΔT  =  Change in Temperature  =  <u>??</u>

Solving eq. 1 for ΔT,

                                ΔT  =  Q / m Cp

Putting values,

                                ΔT  =  1170 J / 24.1 g × 2.42 J.g⁻¹.°C⁻¹

                                ΔT  =  20.06 °C

6 0
3 years ago
A 25-mL solution of H2SO4 is completely neutralized by 18 mL of 1.0M NaOH. What is the concentration of the H2SO4?
Charra [1.4K]
There are several information's already given in the question. Based on the information's provided, the answer can be easily deduced.
V1 = 25 ml
     = 25/1000 liter
     = 0.025 liter
V2 = 18 ml
      = 18/1000 liter
      = 0.018 liter
M2 = 1.0 M
M1 = ?
Then
M1V1 = M2V2
M1 = M2V2/V1
      = (1 * 0.018)/0.025
      = 0.72 M
From the above deduction, it can be easily concluded that the correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that has actually come to your help.
5 0
3 years ago
Read 2 more answers
Which is one way to test whether an unknown solution is acidic or basic
yarga [219]

if the ph is above 7 then its acidic

if its below 7 than its going to be basic.

~serenity bella

7 0
3 years ago
Read 2 more answers
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