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2 years ago

Write the net ionic equation, including phases, Pb(NO3)2(aq)+K2CO3(aq)⟶PbCO3(s)+2KNO3(aq)

Chemistry

1 answer:

Papessa [141]2 years ago

5 0

Pb2+(aq) + CO3 2-(aq) ==> PbCO3(s)

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Identify the power of ten that defines each of these prefixes. Input your answers as 10 x where x is the power of ten. nano- ___

Gemiola [76]

Answer: The quantity of every prefix is written below as a power of ten.

Explanation:

In the metric system of measurement, the name of multiples and subdivision of any unit is done by combining the name of the unit with the prefixes.

For Example: deka, hecto and kilo means 10, 100 and 1000 respectively. Deci, centi and milli means one-tenth, one-hundredth, and one-thousandth respectively.

The quantity of these prefixes are written as the power of 10.

For the given prefixes:

Nano: The quantity will be $10^{-9}$

Kilo: The quantity will be $10^3$

Centi: The quantity will be $10^{-2}$

Micro: The quantity will be $10^{-6}$

Milli: The quantity will be $10^{-3}$

Mega: The quantity will be $10^6$

Hence, the quantity of every prefix is written above as a power of ten.

7 0

3 years ago

Na sua época quais foram as condições experimentais que Lavoisier utilizou em suas experiências ?

Olin [163]

Answer:

What are u saying

Explanation:

umm ok sorry i didnt understand anything

3 0

3 years ago

A wave cycle is

fenix001 [56]

It’s c because a wave cycle is repeating patterns all over again and again

6 0

2 years ago

4.00 moles of CU(CN)2 Find the number of grams

UNO [17]

Hey there!

Cu(CN)₂

Find the molar mass.

Cu: 1 x 63.546 = 63.546

C: 2 x 12.01 = 24.02

N: 2 x 14.07 = 28.14

-----------------------------------

115.706 grams

The mass of one mole of Cu(CN)₂ is 115.706 grams.

We have 4 moles.

115.706 x 4 = 463

4.00 moles of Cu(CN)₂ has a mass of 463 grams.

Hope this helps!

6 0

3 years ago

Finding the pH for [H+] = 9.4 * 10-3 M?

saul85 [17]

Answer:

pH = 2.0

Explanation:

To find the pH of a solution, take the -log[H+]. In this case, the -log(9.4 x 10^-3) equals 2.02687 which makes 2.0 when accounting for significant figures.

3 0

2 years ago