3 years ago

HELP ILL MARK U AS BRAINLIEST PLSSSSS!!

Chemistry

2 answers:

Molodets [167]3 years ago

6 0

The Earth moves faster than the planets that are farther from the Sun.

Norma-Jean [14]3 years ago

5 0

B. The earth correct answer.

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How many lone pairs of electrons are on the central atom in the lewis structure of carbon dioxide? 0, 1, 2, or 3?

mezya [45]

Draw CO2, C in the middle and O on each side. O has 6 e- and C has 4, so 6+6+4= 14 e-.

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3 years ago

The element sodium occurs naturally as a light solid with shiny metallic appearance. The diagram shows what will happen when a p

Zepler [3.9K]

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Explanation:

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4 years ago

Classify the following reaction:2h2o 2h2 o2

lord [1]

The classified form of the following reaction should looke like that : $2 H2O (l) 2 H2(g) + O2(g)$ . WHat about the name of such reaction, I am pretty sure that it is called <span>decomposition. I bet you have the same in the option list, but next time check it carefully.</span>

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3 years ago

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Bromine- is radioactive and has a half life of seconds. What percentage of a sample would be left after seconds? Round your answ

Vladimir [108]

Corrected question:

Bromine-88 is radioactive and has a half life of 16.3seconds. What percentage of a sample would be left after 35seconds? Round your answer to 2 significant digits.

Answer:

23% (3 significant digits)

Explanation:

$M_{R} =\frac{M_{O} }{2^{n} }$