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poizon [28]
3 years ago
15

Write the word and formula equations representing the chemical reaction that occurred between the. barium chloride solution , Ba

Cl2(aq) , and the sodium sulfate solution Na2SO4(aq).

Chemistry
1 answer:
eduard3 years ago
5 0
Word Equation: Barium chloride solution reacts with sodium sulfate solution to produce sodium chloride and barium sulfate.

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What is the mass of 3.01 x 10^21 atoms of Co
OlgaM077 [116]

Answer:

0.295 g Co

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

<u>Step 1: Define</u>

3.01 × 10²¹ atoms Co

<u>Step 2: Identify Conversions</u>

Avogadro's Number

Molar Mass of Co - 58.93 g/mol

<u>Step 3: Convert</u>

<u />3.01 \cdot 10^{21} \ atoms \ Co(\frac{1 \ mol \ Co}{6.022 \cdot 10^{23} \ atoms \ Co} )(\frac{58.93 \ g \ Co}{1 \ mol \ Co} ) = 0.294552 g Co

<u>Step 4: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

0.294552 g Co ≈ 0.295 g Co

5 0
3 years ago
The pressure of a 1-L nitrogen gas sample at 25 ⁰C is 0.30 atm. The pressure of a 1-L oxygen gas sample at the same temperature
ki77a [65]

Answer:

Nitrogen = 0.3 atm

Oxygen = 0.25 atm

Argon  = 0.45 atm

Explanation:

According to Dalton's law of partial pressure, the total pressure in the container is equal to sum of the partial pressures of the individual gases.

Given;

Total pressure of the gases, P_total = 1 atm

Pressure of nitrogen, P_nitrogen = 0.3 atm

Pressure of oxygen, P_oxygen = 0.25 atm

Pressure of argon, P_argon = ?

P_{total} = P_{nitrogen} + P_{oxygen} + P_{argon}\\\\1 \ atm= 0.3 \ atm + 0.25 \ atm + P_{argon}\\\\1 \ atm= 0.55 \ atm +  P_{argon}\\\\ P_{argon} = 1 \ atm - 0.55 \ atm\\\\ P_{argon} = 0.45 \ atm

Therefore, the contribution of each gas to the total pressure of the gas mixture is;

Nitrogen = 0.3 atm

Oxygen = 0.25 atm

Argon  = 0.45 atm

8 0
3 years ago
Consideras que Colombia es un país democrático? Justifica tu respuesta​
jasenka [17]

Answer:

si es un país democrático.

justificación: el estado colombiano es una democracia sólida y fuerte, con gran tradición dentro de la región, esta tiene como eje principal la generación de empleo, buscando que todos los colombianos tengan ingresos seguros un trabajo digno y pertenezca a la seguridad social.

Explanation:

esperó te sirva

6 0
3 years ago
Na3PO4 + AlBr3 ----&gt; ?
Sati [7]
Na₃PO₄(aq)+AlBr₃(aq)→3NaBr(aq)+AlPO₄(s)

This is a double replacement reaction.  You can tell that there has to be 3NaBr molecules since there are 3 Na atoms in sodium phosphate and 3 Br atoms in aluminum bromide.  We also know that Na has an oxidation number of +1 which means PO₄ needs to have an oxidation number of -3 while Br has an oxidation number of -1 which means Al has an oxidation number of +3.  That means that Al³⁺ and PO₄³⁻ can from AlPO₄  
I hope this helps.  Let me know if anything is unclear.
8 0
4 years ago
fbubduyabdubdubwudb8bndwibdiwqbdiwbidbqiydbqidbiqbd use this to get points fffffffffffffff ffffffff f f f f ffdf eo fje fje wfoj
kirza4 [7]

Answer:

lma.o

tysm for the points!

Explanation:

Have good day (or night)!  

:)

6 0
3 years ago
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