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marin [14]
2 years ago
11

Is LiOH soluble or insoluble?

Chemistry
1 answer:
riadik2000 [5.3K]2 years ago
6 0
LiOH is soluble. Na2CO3 is soluble. Cu(OH)2 is insoluble. 
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A sample of a substance has a volume of 60.5ml and a density of 1.20g/ml what is density of magneis
erica [24]

Answer:

m = 72.6 grams

Explanation:

Given that,

The density of the substance uis 1.2 g/mL

Volume, V = 60.5 mL

We need to find the mass of the substance. Density is equal to mass divided by its volume. So, it can be given by :

d=\dfrac{m}{V}\\\\m=d\times V\\\\m=1.2\ g/mL\times 60.5\ mL\\\\m=72.6\ g

So, the mass of the substance is 72.6 grams.

8 0
2 years ago
Which of these is a rough approximation of the cogito?
ratelena [41]

Given the Latin meaning of the cogito, we can confirm that it is roughly translated and summarized by the phrase <em><u>"I think, therefore I am"</u></em>.

Cogito, ergo sum or "The Cogito" is an extremely popular, well-known philosophical phrase credited to <em><u>Rene Descartes</u></em>. This Latin phrase is roughly translated as <em><u>"I think, therefore I am"</u></em>, which appeared originally in "The Principles of Philosophy", and was later translated to a variety of languages in an attempt to reach a wider public, most notably into Latin.

To learn more visit:

brainly.com/question/16853649?referrer=searchResults

4 0
2 years ago
2.4 moles of a gas in a balloon has a pressure of 4.0 atm at 373K. What is the volume of the gas?
leva [86]

Answer:

To find the volume of the gas. So if you have the amount of gas in moles. So the first step is to multiply the amount of moles that is 2.4 with liters to find the answer.

Explanation:

5 0
3 years ago
Many different parts of the brain work together to encode, store, and retrieve information as needed. The diagram below indicate
a_sh-v [17]

Answer:

Are memories stored in just one part of the brain, or are they stored in many different parts of the brain? Karl Lashley began exploring this problem, about 100 years ago, by making lesions in the brains of animals such as rats and monkeys. He was searching for evidence of the engram: the group of neurons that serve as the “physical representation of memory” (Josselyn, 2010). First, Lashley (1950) trained rats to find their way through a maze. Then, he used the tools available at the time—in this case a soldering iron—to create lesions in the rats’ brains, specifically in the cerebral cortex. He did this because he was trying to erase the engram, or the original memory trace that the rats had of the maze.

Lashley did not find evidence of the engram, and the rats were still able to find their way through the maze, regardless of the size or location of the lesion. Based on his creation of lesions and the animals’ reaction, he formulated the equipotentiality hypothesis: if part of one area of the brain involved in memory is damaged, another part of the same area can take over that memory function (Lashley, 1950). Although Lashley’s early work did not confirm the existence of the engram, modern psychologists are making progress locating it. Eric Kandel, for example, spent decades working on the synapse, the basic structure of the brain, and its role in controlling the flow of information through neural circuits needed to store memories (Mayford, Siegelbaum, & Kandel, 2012).

Many scientists believe that the entire brain is involved with memory. However, since Lashley’s research, other scientists have been able to look more closely at the brain and memory. They have argued that memory is located in specific parts of the brain, and specific neurons can be recognized for their involvement in forming memories. The main parts of the brain involved with memory are the amygdala, the hippocampus, the cerebellum, and the prefrontal cortex 

4 0
2 years ago
Read 2 more answers
A student dissolves 3.9g of aniline (C6H5NH2) in 200.mL of a solvent with a density of 1.05 g/mL . The student notices that the
Tresset [83]

Answer:

a. Molarity= M =2.1x10^{-1}M

b. Molality= m=2.0x10^{-1}m

Explanation:

Hello,

In this case, given the information about the aniline, whose molar mass is 93g/mol, one could assume the volume of the solution is just 200 mL (0.200 L) as no volume change is observed when mixing, therefore, the molarity results:

M=\frac{n_{solute}}{V_{solution}} =\frac{3.9g*\frac{1mol}{93g} }{0.2L} =2.1x10^{-1}M

Moreover, the molality:

m=\frac{n_{solute}}{m_{solvent}} =\frac{3.9g*\frac{1mol}{93g} }{0.2L*\frac{1.05kg}{1L} } =2.0x10^{-1}m

Best regards.

7 0
3 years ago
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