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Mashcka [7]
3 years ago
14

1. The following equation represents the reaction between sodium and water.

Chemistry
1 answer:
artcher [175]3 years ago
8 0
Option C an oxidant only
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What is the standard for comparison in an experiment called?
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It is the control group
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HURRRYYY !!!!!
coldgirl [10]

Answer:

The correct answer is - increase Florida's average income per person.

Explanation:

Kennedy Space Center established by NASA helped the boosting economy of Florida. Spaceport operations in Kennedy Space Center benefit Florida by a total economic impact of nearly $4 billion on Florida's economy.

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Which type of drugs kill pain by blocking impulses at specific receptor sites of the brain and spinal cord? narcotic analgesics
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7 0
3 years ago
A solution contains 10.6 g of glucose. How many moles of glucose are present? How many molecules of glucose are present? How man
spin [16.1K]

Answer:

- moles=0.0588mol\ Glucose

- molecules=3.54x10^{22} molecules \ Glucose

- atoms \ C=2.13x10^{23}atoms \ C

Explanation:

Hello,

In this case, by knowing molar mass of glucose is 180.156 g/mol, we can apply the following mole-mass-particles relationships in order to compute the moles, molecules and carbon atoms in the 10.6-g sample of glucose:

- Moles:

moles=10.6g\ Glucose*\frac{1mol\ Glucose}{180.156g\ Glucose}\\\\moles=0.0588mol\ Glucose

- Molecules: we also use Avogadro's number.

molecules=10.6g\ Glucose*\frac{1mol\ Glucose}{180.156g\ Glucose}*\frac{6.022x10^{23} molecules \ Glucose}{1mol\ Glucose} \\\\molecules=3.54x10^{22} molecules \ Glucose

- Carbon atoms: here, particularly, one mole of glucose has six moles of carbon atoms, thus:

atoms\ C=10.6g\ Glucose*\frac{1mol\ Glucose}{180.156g\ Glucose}*\frac{6molC}{1mol\ Glucose} *\frac{6.022x10^{23}atoms \ C}{1molC} \\\\atoms \ C=2.13x10^{23}atoms \ C

Regards.

7 0
3 years ago
If Gregory starts with 2.5 grams of CuO, how many grams of N2 can he theoretically form?
Cloud [144]

Answer:

                      0.2934 g of N₂

Explanation:

                    The balance chemical equation for given reaction is as follow;

                              2 NH₃ + 3 CuO → 3 Cu + N₂ + 3 H₂O

Step 1: <u>Calculate Moles of CuO as;</u>

                Moles  =  Mass / M.Mass

                Moles  =  2.5 g / 79.54 g/mol

                Moles  =  0.0314 moles of CuO

Step 2: <u>Find out moles of N₂ as;</u>

According to equation,

                      3 moles of CuO produced  =  1 mole of N₂

So,

                0.0314 moles of CuO will produce  = X moles of N₂

Solving for X,

                       X =  0.0314 mol × 1 mol / 3 mol

                      X =  0.0104 moles of N₂

Step 3: <u>Calculate Mass of N₂ as;</u>

                    Mass  =  Moles × M.Mass

                    Mass  =  0.0104 mol × 28.01 g/mol

                    Mass  = 0.2934 g of N₂

3 0
3 years ago
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