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Andre45 [30]
3 years ago
7

Who is it the scientific

Chemistry
1 answer:
viva [34]3 years ago
7 0

Answer: sorry for a late answer but it would be JJ Thompson

Explanation:

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Sally has been described by her psychology teacher, Mrs. Feldspar, as a bit
tester [92]

Sally is struggling with Prospective memory.

<u>Explanation:</u>

The type of memory in which an individual has problem to remember a planned set of actions. He or she can remember or recall it only after some period of time may be in future and not at that time where those actions needs to be performed. These type of memory problem can range from a simple situation like the tasks that are to be done in common, simple and daily basis to serious issue.

Some of the instances of this kind of prospective memory includes, closing a tap after usage, cut a call over phone when the conversation is done,etc. These instances includes only simple issues. Some of dangerous issues includes forgetting to take regular medicines, forgetting to take some protective and safety measures while driving,etc.

4 0
3 years ago
0.20 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 4.5 L of solution. What is the pH of this solution?
amid [387]
Thats allllllll otttt but ill help

step by step
8 0
3 years ago
What does the aufbau principle suggest about electron configuration?
Scorpion4ik [409]

Answer:

Electrons occupy orbitals with the lowest energy first.

Explanation:

The Aufbau Principle states that electrons will fill the atomic orbitals with the lowest energy levels first, before occupying others with higher energy levels.

For example, electrons will fill the 1s orbital before filling the 2s orbital.

4 0
4 years ago
Read 2 more answers
Calculate the molar mass of a 2.89 g gas at 346 ml, a temperature of 28.3 degrees Celsius, and a pressure of 760 mmHg.
malfutka [58]

The molar mass of gas = 206.36 g/mol

<h3>Further explanation</h3>

In general, the gas equation can be written

\large{\boxed{\bold{PV=nRT}}}

where

P = pressure, atm

V = volume, liter

n = number of moles

R = gas constant = 0.082 l.atm / mol K

T = temperature, Kelvin

mass (m)= 2.89 g

volume(V) = 346 ml = 0.346 L

T = 28.3 C + 273 = 301.3 K

P = 760 mmHg=1 atm

The molar mass (M) :

\tt PV=\dfrac{m}{M}RT\\\\M=\dfrac{mRT}{PV}\\\\M=\dfrac{2.89\times 0.082\times 301.3}{1\times 0.346}\\\\M=206.36~g/mol

8 0
3 years ago
Which of these compounds are oxidizing agents?
elena55 [62]

i guess its e) Mn (VII)

if it was wrong pls let me knw


6 0
3 years ago
Read 2 more answers
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