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zhenek [66]
2 years ago
8

Name two chemicals that can be used to prepare a standard solution in the Laboratory​

Chemistry
1 answer:
pantera1 [17]2 years ago
6 0

Answer:

Two chemicals that can be used to prepare standard solutions in lab are Hydrochloric acid & Sulphuric acid.

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In which of Piaget’s stages would a child be if the child has just developed object permanence?
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preoperational

Explanation:

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How is ti possible that, when adding protons while moving left to right across a period, the size of an atom shrinks? Why is the
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On the other hand, while moving down a group, there is an increase in the number of energy levels. The enhanced number of energy levels increases the size of the atom in spite of the elevation in the number of protons. In the outermost energy levels, the protons get attracted towards the nucleus, however, the attraction is less due to an increase in the distance from the nucleus.  

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2 years ago
AIDS is one disease caused by a virus infection. The virus attacks immune system cells known as T cells.
VLD [36.1K]

Answer:

yes,its true

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I just want to say first off

the immune cell known as T cell also known as white blood cells

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