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3 years ago

9

The chemical formula of glucose isC6H12O6. What are the names of the elements glucose, and how many atoms of each element are pr

esent in a glucose molecule?

1 answer:

Vlad [161]3 years ago

6 0

Answer:

A glucose molecule is made up of 6 Carbon atoms, 12 Hydrogen atoms, and 6 Oxygen atoms. This is a 1:2:1 ratio. Hopefully, this helps!

Explanation:

You might be interested in

Choose the best classification of the reactions C6H12O6 (g) + 6O2 yields 6CO2 + 6H2O

marta [7]

Combustion reaction because it produces water and carbon dioxide

6 0

3 years ago

Which sample of matter is a mixture<br> (1) Br2(l)<br> (2) K(s)<br> (3) KBr(s)<br> (4)KBr(aq)

SOVA2 [1]

Answer:

(4)KBr(aq)

Explanation:

A mixture is an impure substance made up of two or more substances that are joined together. Their composition is indefinite and not easily represented by a simple chemical formula.

KBr $_{aq}$ is a mixture because it made up of an aqueous solution of KBr. This suggests that the substance KBr is placed inside water.

Here, we have two states of matter which is the solid and the liquid coming together.

As with both mixtures, they can be separated by physical means, KBr aqueous solution can also be done this way.

5 0

3 years ago

Which statement Ilustrates the difference between a chemical reaction and a nuclear reaction?

pishuonlain [190]

Answer:

A nuclear reaction releases more energy per gram and appears to violate the law of conservation of mass.

Explanation:

In nuclear reactions there arises a shift in the nucleus of the atom. This results in the production of a different element altogether. While in chemical reactions the electrons are rearrangement and there is no change in the nucleus.
Factors like temperature, pressure, and catalysts do not affect the rate of nuclear reactions while they influence the chemical reactions.
The change in the energy is higher in nuclear reactions. It arises out of the destruction of mass.

8 0

3 years ago

A 25.888 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 73.464 g of wa

brilliants [131]

Answer:

Weight % of NH₃ in the aqueous waste = 2.001 %

Explanation:

The chemical equation for the reaction

$\\\\NH_3} + HCl -----> NH_4Cl$

Moles of HCl = Molarity × Volume

= 0.1039 × 31.89 mL × $\frac{1 \ L}{1000 \ mL}$

= 0.0033 mole

Total mass of original sample = 25.888 g + 73.464 g

= 99.352 g

Total HCl taken for assay = $\frac{10.762 \ g}{99.352 \ g}$

= 0.1083 g

Moles of NH₃ = $\frac{0.0033 \ mol}{0.1083}$

= 0.03047 moles

Mass of NH₃ = number of moles × molar mass

Mass of NH₃ = 0.03047 moles × 17 g

Mass of NH₃ = 0.51799

Weight % of NH₃ = $\frac{0.51799 \ g}{25.888 \ g} * 100%$ %

Weight % of NH₃ in the aqueous waste = 2.001 %

4 0

3 years ago

22.4 liters of a gas at a constant temperature of zero Celsius and a pressure of 1 atmosphere is compressed to a volume of 6.2 l

zhannawk [14.2K]

<h2>Hello!</h2>

The answer is: The new pressure of the gas is 3.6 atm.

<h2>Why?</h2>

From the statement we know that the gas is kept at a constant temperature of 0°C, so, if the gas keeps a constant temperature we can use the Boyle's Law to solve this problem.

The Boyle's Law states that:

$P_{1}V_{1}=P_{2}V_{2}$

Where,

P is the pressure of the gas.

V is the volume of the gas.

So, the given information is:

$V_{1}=22.4L\\P_{1}=1atm\\V_{2}=6.2L$

Now, substituting it into the Boyle's Law equation to calculate the new pressure, we have:

$P_{1}V_{1}=P_{2}V_{2}\\\\1atm*22.4L=P_{2}*6.2L\\\\P_{2}=\frac{1atm*22.4L}{6.2L}=3.6atm$

So, the new pressure is 3.6 atm.

Have a nice day!

4 0

4 years ago