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4 years ago

Help me i do not know this i am very dumb

Chemistry

1 answer:

Ivahew [28]4 years ago

8 0

A cell is the smallest unit of life, also called the 'building blocks of life' because cells multiply and differentiate to form a multicellular organism as well as give rise to new organism by forming gametes or reproductive spores. A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism. Thus, cells are the basic building blocks of all organisms. Several systems that function together form an organism (like a human being).

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INFER if the total mass of the products in a reaction is 90 grams,

Vaselesa [24]

Answer:

90 grams. Input mass = output mass

Explanation:

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3 years ago

Write a net ionic equation for the reaction of hydrochloric acid with ammonia in aqueous solution. And write a net ionic equatio

zavuch27 [327]

Explanation:

(a) When aqueous solution of hydrochloric and ammonia chemically react together then it results in the formation of ammonium chloride.

The reaction equation for this reaction is as follows.

$HCl(aq) + NH_{3}(aq) \rightarrow NH_{4}Cl(aq)$

Now, ioni equation for this reaction is as follows.

$H^{+}(aq) + Cl^{-}(aq) + NH_{3}(aq) \rightarrow NH_{4}^{+}(aq) + Cl^{-}(aq)$

Cancelling the spectator ions, the net ionic reaction equation is as follows.

$H^{+}(aq) + NH_{3}(aq) \rightarrow NH^{+}_{4}(aq)$

(b) When sodium hydroxide chemically reacts with ammonium chloride then it forms ammonia, water and sodium chloride as follows.

$NaOH(aq) + NH_{4}Cl(aq) \rightarrow NH_{3}(aq) + NaCl(aq) + H_{2}O(l)$

Now, the total ionic equation will be as follows.

$Na^{+}(aq) + OH^{-}(aq) + NH^{+}_{4}(aq) + Cl^{-}(aq) \rightarrow NH_{3}(aq) + Na^{+}(aq) + Cl^{-}(aq) + H_{2}O(l)$

Cancelling the spectator ions from the above equation. Then the net ionic equation will be as follows.

$OH^{-}(aq) + NH^{+}_{4}(aq) \rightarrow NH_{3}(aq) + H_{2}O(l)$

6 0

4 years ago

Read 2 more answers

What are the four pieces of information that can be found in a square of the periodic table?

vovikov84 [41]

The number of valence electrons an element may have, the state(metal, gas, etc..) of an element, how likely an element is to "give" or "take" electrons, and what elements can combine together.

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3 years ago

What is the mol of 1 5 x 10^26

Artemon [7]

1,500,000,000,000,000,000,000

or 1.5e+26

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3 years ago

Briefly explain an example of a scientific theory and explain why it will never become a law

Aleks04 [339]

Answer:

Cell theory is a theory, not a law because the cell theory does not have enough support to become a law.

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3 years ago