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Elanso [62]
2 years ago
5

The first element on the periodic table of elements is hydrogen true or false

Chemistry
2 answers:
bixtya [17]2 years ago
7 0

Answer:

True

Explanation:

Hydrogen has only one proton, so has an atomic number of one, therefore making it the first element of the periodic table.

OverLord2011 [107]2 years ago
4 0
True, as hydrogen has 1 proton in its nucleus




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Answer:

Correct answer is (D). as a weak acid it can cross the membrane when in its uncharged form.

Explanation:

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What is the correct term for blocked sunlight and reduced solar radiation as a result of a volcanic eruption?
Anvisha [2.4K]
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Explain why chemical equations have to be balanced
vivado [14]
Chemical equations are to be balanced to be able to follow the law of conservation of mass where it says that mass cannot be created or destroyed. Reactions should be that the mass of the reactants is equal to the mass of the products. 
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2 years ago
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In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide: HNCO(l)→C3N3(NH2)3(l)+CO2(g) Bal
kykrilka [37]

Answer:

The coefficients are 6, 1, 3

Explanation:

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Now there are 6 atoms of carbon on the left side and 4 atoms on the right side. It can be balance by putting 3 in front of CO2 as shown below:

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The coefficients are 6, 1, 3

8 0
3 years ago
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6 0
2 years ago
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