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salantis [7]
3 years ago
5

How many senses does the human body have? O A. 3 B. 5

Chemistry
2 answers:
tatyana61 [14]3 years ago
8 0

Answer:

B

Explanation:

sight, hearing, smell, taste and touch

nadezda [96]3 years ago
3 0

Answer:

Most easiest answer..

There are 5 senses in human body.☺️

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Q3. A student wanted to make blue copper sulfate crystals from green copper carbonate powder
CaHeK987 [17]

Heat the sulfuric acid solution and adding copper carbonate in it.

<h3>Improvement require in this experiment</h3>

The method could be improved by heating sulfuric acid solution and add copper carbonate into the solution of sulfuric acid. Add the copper carbonate until it is present in excess amount. After that filter the extra amount of copper carbonate so in this way the blue copper sulfate crystals are produced.

Learn more about copper here: brainly.com/question/3157958

5 0
2 years ago
Given that blood exerts the same osmotic pressure as a 0.15 M NaCl solution, which solution could be the isotonic solution
bulgar [2K]

Answer:

0.15 (M) of NaCl            

Explanation:

An isotonic solution is defined as the solution having the same osmolarity, or the same solute concentration, as the another solution. If the two solutions are to be separated by any semipermeable membrane, then water will start flowing in equal parts from each solution and also into the other.  

In the context, since it is given that the red blood cells exerts the same osmotic pressure as a 0.15 (M) of NaCl solution.

Thus, 0.15 (M) of NaCl is a isotonic solution.  

8 0
3 years ago
Nombre genérico que recibe el esquema diseñado para organizar y argumentar cada elemento químico de acuerdo a las propiedades y
timurjin [86]

Answer:

Explanation:

Un

8 0
3 years ago
An apple is placed on a scale. The scale shows the apple weighs 3/4 of a pound. This demonstrates that the apple has ___________
kkurt [141]
The apple has a weight so d
3 0
3 years ago
Read 2 more answers
Calculate the solubility of BaCO3 (a) in pure water and (b) in a solution in which [CO32-] = 0.289 M. Solubility in pure water =
jasenka [17]

Answer:

(a). The solubility of BaCO_{3} in pure water is 4.4\times10^{-5}\ M

(b). The solubility of BaCO_{3} in solution is 6.92\times10^{-9}\ M

Explanation:

Given that,

(a). The solubility of BaCO_{3} in pure water

(b). The solubility of BaCO_{3} in a solution

Solubility of CO_{3}^{-2} is 0.289 M

We know that,

The solubility product constant  of  BaCO_{3} is 2\times10^{-9}

Let the solubility of BaCO_{3} is s.

We need to calculate the solubility of BaCO_{3} in pure water

Using formula of solubility

ksp=s\times s

ksp=s^2

s=\sqrt{ksp}

Put the value into the formula

s=\sqrt{2\times10^{-9}}

s=4.4\times10^{-5}\ M

(b). We need to calculate the solubility of BaCO_{3} in solution

Using formula of solubility

ksp=s\times s

Put the value into the formula

2\times10^{-9}=s\times 0.289

s=\dfrac{2\times10^{-9}}{0.289}

s=6.92\times10^{-9}\ M

Hence, (a). The solubility of BaCO_{3} in pure water is 4.4\times10^{-5}\ M

(b). The solubility of BaCO_{3} in solution is 6.92\times10^{-9}\ M

3 0
3 years ago
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