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jarptica [38.1K]
3 years ago
5

Write the chemical equation for the following word equations. Include symbols for physical states in the equation.a. solid zinc

sulfide + oxygen gas → solid zinc oxide + sulfur dioxide gas. aqueous hydrochloric acid + aqueous barium hydroxide → aqueous barium chloride + water
Chemistry
1 answer:
ivanzaharov [21]3 years ago
7 0

Answer:

a.

ZnS(s) + O2(g) → ZnO(s) + SO2(g)

b.

HCl (aq) + Ba(OH)2(aq) → BaCl2(aq) + H2O

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Sibling rivalry may occur when:
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Explanation: true

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What are the advantages of using digital signals over analog signals?
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in digital signals, codes are used while in analogue signals do not use signals.

<h3>What are signals?</h3>

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4 0
2 years ago
what is the pH of a solution prepared from solid, neutral 2-nitrophenol providing a fromal concentration of 0.0353M, given that
REY [17]

Answer:

pH = 4.34

Explanation:

pH= -1/2(logKa) -1/2(log C)

= -1/2( log 5.98*10^-8) -1/2(log 0.0353)

=-1/2(-7.22)-1/2(-1.45)

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7 0
3 years ago
An artifact contains one-fourth as much carbon-14 as the atmosphere. how old is the artifact
Nikolay [14]
<h3><u>Answer;</u></h3>

= 11,460 years

<h3><u>Explanation;</u></h3>
  • <em><u>The half life of Carbon-14 is 5,730 years . Half life is the time taken by a radioactive material to decay by half of its original mass.  Therefore, it  would take a time of 5730 years for a sample of 100 g of carbon-14 to decay to 50 grams</u></em>

<em>The initial amount of carbon-14 in this case was 1 whole; thus; </em>

<em>1 → 1/2 →1/4</em>

<em>To contain 1/4 of the value, 2 half-lives have passed. </em>

<em>But, 1 half life = 5,730 years</em>

<em>Therefore; The artifact is is therefore: 2 x 5,730 </em>

<em>          = 11,460 years </em>

4 0
2 years ago
Read 2 more answers
PLZ HELP ITS A TEST AND GIVE ME THE RIGHT ANSWER
Rzqust [24]
There’s no question?
6 0
3 years ago
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