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luda_lava [24]
3 years ago
12

What would you use to measure an amount of solid sodium chloride(NaCl) crystals to add to a 30 mL solution?

Biology
1 answer:
Sphinxa [80]3 years ago
6 0

Answer:

Spectrophotometer that measures between 100 and 900 nanometers.

Explanation:

dont quote me on this

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Tpy6a [65]

There are six aorganells in an animal cell. The Nucleus,  Ribosomes, Endoplasmic reticulum, Golgi apparatus, Chloroplasts and the Mitochondria.

7 0
3 years ago
You just came back from a class in which the topic was egocentrism in the preoperational stage. You have a 4-year-old and though
joja [24]

Answer:

Option B

Explanation:

Question -

You just came back from class in which the topic was egocentrism in the preoperational stage. You have a 4-year-old and thought that you would see if what you learned was accurate. You are sitting directly across from her and ask her to look at the front and back cover of her favorite book. After she did this you asked her to describe "the part of the book I am looking at." What does she tell you?

a) how many pages there are in the book

b) what she sees

c) what you see

d) what the story is about

Solution

As per Piaget's theory of cognitive development, when a child is at the preoperational stage he/she is able to think only at symbolic level and cannot use his/her cognitive thinking.  

He/she is unable to derive senses or meaning associated with symbols and also his/her communication is egocentric which means they cannot think from the perspective of other people.  

Hence, option B is correct

4 0
3 years ago
In order for conduction to transfer heat from one object to another, what must be true?
sasho [114]
In this case the objects must be touching

6 0
3 years ago
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Scientific ____ must be supported by observations and results from many investigations and are not absolute.
azamat
Scientific methods must be supported by observations and results from many investigations and are not absolute.
3 0
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Suggest how the highly folded cell surface helps the epithelial cell to absorb soluble food
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 Epithelial cells also carry out active transport.

Hope this helps.

~Jurgen
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