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Zolol [24]
3 years ago
14

How many significant digits are in the measurement 64,000 mg A.2 B.3 C.4 D.5

Chemistry
1 answer:
Y_Kistochka [10]3 years ago
8 0
5 because the 0's all matter.
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En la electrosis del cloruro de sodio (Na Ci) el cloruro es atraido por elcatodo. Falso o verdadero. Y porque?
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Answer:

Falso

Explanation:

La electrólisis es la descomposición de una solución cuando la corriente continua se pasa a través de ella.

La corriente entra y abandona el electrolito a través de los electrodos. El electrodo positivo se llama el ánodo mientras el electrodo negativo se llama cátodo.

Los iones positivos se mueven hacia el cátodo, mientras que los iones negativos se mueven hacia el ánodo.

Dado que el cloruro es un ion negativo, se mueve hacia el ánodo y no hacia el cátodo.

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3 years ago
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A magnet sticks to an iron can and an iron rod. This is an intrinsic property. <br> True or false?
lesantik [10]

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3 years ago
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A laboratory assistant needs to prepare 217 mL of 0.246 M solution. How many grams of calcium chloride will she need
agasfer [191]

Answer:

5.92 g

Explanation:

Convert milliliters to liters.

217 mL = 0.217 L

Since molarity (M) is moles per liter(mol/L), multiply the molarity by the volume to find out how many moles you will need.

0.217 L × 0.246 M = 0.05338 mol

Now, convert the moles to grams using the molar mass.  The molar mass of calcium chloride is 110.98 g/mol.

0.05338 mol × 110.98 g/mol = 5.924 g ≈ 5.92 g

You will need 5.92 g of calcium chloride.

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