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3 years ago

9

Liquids are similar to gases in that they both have

1 answer:

ycow [4]3 years ago

3 0

B , water has no definite shape neither do gases <span />

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Combustion reactions are characterized by the reaction of a substance with

pashok25 [27]

Answer: Combustion reactions are characterized by the reaction of a substance with O2 to form one or more oxygen, often water. Combustion reactions emit heat, and they are important because most of society's energy is derived from them. Ex.: CH4 (g) + 2O2 (g) -- CO2 (g) + 2H2O (g)

Explanation: I hope thus helps UwU

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3 years ago

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Calculating the formula mass of sodium hydroxide

DiKsa [7]

Sodium hydroxide -----> NaOH

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3 years ago

Which of the following statements is true?

Shtirlitz [24]

Answer: Elements in the last period are radioactive.

Explanation:

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4 years ago

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A ball is thrown straight up into the air with a speed of 21 m/s. If the ball has a mass of 0.1 kg, how high does the ball go? A

Grace [21]

Answer:

answer = 22.5m

Explanation:

using

$s = \frac{ {v}^{2} - {4}^{2} }{2a}$

s= (0²-21²)/2(-9.8)

s= -441/19.6

s= 22.5m

do consider marking as Brainliest if this helped!!

5 0

3 years ago

Use the equation editor or "Insert Chemistry - WIRIS editor" to write the balanced molecular chemical equation for the reaction

11Alexandr11 [23.1K]

Answer:

<u>Balanced equation:</u>

$Pb(NO_{3})_{2}(aq)+K_{2}CO_{3}(aq)\rightarrow PbCO_{3}(s)+2KNO_{3}(aq)$

Explanation:

The chemical reaction between Lead(II) Nitrate and potassium carbonate is as follows.

$Lead(II)Nitrate+Potassium\,carbonate \rightarrow Lead(III)\,\,carbonate+Potassium\,nitrate$

$Pb(NO_{3})_{2}(aq)+K_{2}CO_{3}(aq)\rightarrow PbCO_{3}(s)+2KNO_{3}(aq)$

<u>Ionic equation:</u>

$Pb^{2+}(aq)+2NO_{3}^{-}(aq)+2K^{+}(aq)+CO_{3}^{2-}(aq)\Leftrightarrow PbCO_{3}(s)+K^{+}(aq)+2NO_{3}^{-}$

Cancel the same ions on the both sides of the reaction.

The net ionic equation is as follows.

$Pb^{2+}(aq)+CO_{3}^{2-}(aq)\Leftrightarrow PbCO_{3}(s)$

4 0

3 years ago