3 years ago

Which is the correctly balanced equation for the reaction of rust, fe2o3, and hydrochloric acid, hcl?.

Chemistry

1 answer:

kap26 [50]3 years ago

7 0

Answer:

fe2o3 + 6hcl => 2fecl3 + 3h2o

Explanation:

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what is the thin rigid part of the earth. A. the mantle. B. the outer core. C. the crust. D. inner core

nekit [7.7K]

The answer is C.

Here’s a picture, if you need it.

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3 years ago

A liquid sample, with a density of .0915 g/mL has a mass of 17.7 grams.

Arlecino [84]

The relation between density, mass and volume is

$Density = \frac{Mass}{Volume}$

1) to calculate = volume

given:

Density = 0.0915 g/ mL

mass = 17.7 grams

formula used:

$Density = \frac{Mass}{Volume}$

Thus

Volume $Volume = \frac{Mass}{Density} = \frac{17.7 g}{0.915 \frac{g}{mL} } = 193.44 mL$

Answer: 193.44 mL

2) the mass of sample will be

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3 years ago

Sample of 76 G of NaCl is dissolved to make 1 L of a solution what is the molarity of the solution

natima [27]

Molarity = Moles/Liter

Use the molecular atomic mass of NaCl to convert from grams to moles.
Molecular mass of NaCl is the sum of its atomic masses. Look at the periodic table to find these. Na is 23 g/mol and Cl is 35.5 g/mol ,
so NaCl = 23 + 35.5 = 58.5 g/mol

multiply to cancel out grams
76 g NaCl * (1mol / 58.5 g NaCl) = 1.3 mol NaCl

over 1 Liter is just 1.3 M NaCl

6 0

3 years ago

Read 2 more answers

What is the mole ratio of N2 to H2 to NH3?

Alexeev081 [22]

Answer:

the answer is 1:3:2

Hope this helps, let me know if you need any other help, Stoichiometry is hard

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4 years ago

Given a speed of 12.5 m/s and a time of 55 seconds how far would the object travel

vovikov84 [41]

Answer:

687.5 m

Explanation:

as the given speed (or velocity) is given as 12.5 m/s and time is 55 sec...

then total distance to be travelled in 55 secs= (12.5× 55) m = 687.5 m

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4 years ago