How do her cells use these molecules to release energy for her body to run?

1 answer:

6 0

In cells use oxygen to release energy stored in sugars such as glucose. In fact, most of the energy used by the cells in your body is provided by cellular respiration. Just as photosynthesis occurs in organelles called chloroplasts, cellular respiration takes place in organelles called mitochondria.

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Toluene (C7H8) and nitric acid (HNO3) are used in the production of trinitrotoluene (TNT, C7H5N3O6), an explosive. C7H8 + HNO3 =

olga55 [171]

The mass in grams of nitric acid that is required to react with 454g C7H8 is 932.72 grams

calculation
find the moles of C7H8 used
moles = mass/molar mass

= 454 g/92 = 4.935 moles

balanced reacting equation

C7H8 +3 HNO3 = C7H5N3O6 +3 H20
by use of mole ratio between C7H8 to HNo3 which is 1:3 the moles of HNO3 =4.935 x3 = 14.805 moles

mass of HNo3 = moles x molar mass
= 14.805 x 63 = 932.72 grams

part B

the mass of C7H5N3o6 = 2045.5 grams

calculate the moles of C7H8
= 829 g/92 g/mol = 9.011 moles

by use of mole ratio between C7H8 to C7H5N3O6 which is 1:1 the moles of C7H5N3O6 is also = 9.011 moles

mass of C7H5N3O6 is therefore = moles x molar mass

=9.011 x227 = 2045.5 grams

8 0

3 years ago

Covalent compounds are generally not very hard. Justify the statement.

Eduardwww [97]

Covalent compounds are generally not very hard because they are formed by two or more nonmetallic atoms.

<h3>COVALENT COMPOUNDS:</h3>

Covalent compounds are compounds whose constituent elements are joined together by covalent bonds.

Covalent bonding occurs when two or more nonmetallic atoms of an element share valence electrons. This means that covalent compounds will not be physically hard since they constitute non-metals.

Examples of covalent compounds are: