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2 years ago

Sodium chloride is a _________ in this reaction: sodium chlorate → sodium chloride + oxygen

Chemistry

2 answers:

motikmotik2 years ago

8 0

The answer is: reactant

Murrr4er [49]2 years ago

5 0

The most obvious answer for this would be a product i think.

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Please help will give points Match the type of thermal energy with the letters on the drawing

Katen [24]

A: radiation

B: convection

C: conduction

7 0

2 years ago

This patient has a bone density of 820mg/cm3. What is the volume of a 25g sample?

mamaluj [8]

Answer: The volume of bone for given sample is $30.49cm^3$

Explanation:

To calculate volume of a substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of bone = $820mg/cm^3=0.82g/cm^3$ (Conversion factor: 1 g = 1000 mg)

Mass of bone = 25 g

Putting values in above equation, we get:

$0.82g/cm^3=\frac{25g}{\text{Volume of bone}}\\\\\text{Volume of bone}=30.49cm^3$

Hence, the volume of bone for given sample is $30.49cm^3$

3 0

3 years ago

How many moles of Mgs203 are in 245g of the compound

marishachu [46]

Molecular weight of MgSO3 = 104.3682 g/mol
181 g / 104.3682 g/mol
= 1.73 g

7 0

2 years ago

Which type of front is most likely moving through this area?

Lesechka [4]

Answer:

Cold front

Explanation:

5 0

2 years ago

Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq) , as described b

Katyanochek1 [597]

Answer:

$m_{MnO_2}=1.378gMnO_2$

Explanation:

Hello,

In this case, we first apply the ideal gas equation to compute the moles of produced chlorine:

$n_{Cl_2}=\frac{PV}{RT}=\frac{765 Torr*\frac{1atm}{760Torr}*0.385L}{0.082\frac{atm*L}{mol*K}*298.15K} =0.01585molCl_2$

Then, by considering the given reaction, applying the stoichiometry, that shows a 1 to 1 relationship between chlorine and manganese dioxide, we find:

$m_{MnO_2}=0.01585molCl_2*\frac{1molMnO_2}{1molCl_2} *\frac{86.937gMnO_2}{1molMnO_2} \\m_{MnO_2}=1.378gMnO_2$

Best regards.

3 0

2 years ago