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ollegr [7]
3 years ago
6

State one reason for the color change in beaker A

Chemistry
1 answer:
myrzilka [38]3 years ago
4 0
Because it either acids or base
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Los campers ________ por un parque cerca del camping. Question options: dan una caminata se duermen toman una ducha
zvonat [6]

Answer:

dan una caminata

Explanation:

3 0
4 years ago
a scuba diver's tank contains 0.29g of oxygen compressed into volume of 2.3L. What is the pressure in the tank at 9C?
viva [34]

Answer:

The answer to your question is P = 0.18 atm

Explanation:

Data

mass of O₂ = 0.29 g

Volume = 2.3 l

Pressure = ?

Temperature = 9°C

constant of ideal gases = 0.082 atm l/mol°K

Process

1.- Convert the mass of O₂ to moles

                16 g of O₂ -------------------- 1 mol

                0.29 g of O₂ ----------------   x

                    x = (0.29 x 1)/16

                    x = 0.29/16

                    x = 0.018 moles

2.- Convert the temperature to °K

Temperature = 9 + 273 = 282°K

3.- Use the ideal gas law ro find the answer

              PV = nRT

-Solve for P

              P = nRT/V

-Substitution

              P = (0.018 x 0.082 x 282) / 2.3

-Simplification

              P = 0.416/2.3

-Result

               P = 0.18 atm

5 0
3 years ago
isotopes of an element will always have the same a. number of protons. b. number of neutrons. c. number of electrons. d. mass.
Nastasia [14]
Your answer is same number of protons
3 0
3 years ago
10 mL of 2(M) NaOH solution is added to 200 mL of 0.5 (M) of NaOH solution. What is the final concentration?​
ratelena [41]

Hello its me Sanya yadav

3 0
2 years ago
What graph would you use if you wanted to compare similar data for several individual items or events?
Soloha48 [4]

Answer:

A. Bar graph

Explanation:

Bar graphs are used to compare things between different groups or to track changes over time. 

5 0
2 years ago
Read 2 more answers
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