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grigory [225]
3 years ago
11

True or false? Enzymes in the digestive tract catalyze hydrolysis reactions.

Chemistry
2 answers:
Eva8 [605]3 years ago
8 0

Answer: true

Explanation:

Slav-nsk [51]3 years ago
5 0

Answer:

The given statement is true.

Enzymes which are present in the digestive tract such as salivary amylase, pepsin, trypsin, et cetera mainly catalyze the hydrolysis reaction.

The hydrolysis reaction is the reaction by which large molecules are broken down into smaller molecules with the help of water.

Most of the complex molecules or nutrients such as starch, protein et cetera are broken down into their respective smaller units with the help of hydrolysis reaction.

For example, lactase catalyzes the hydrolysis of lactose into glucose and galactose.

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How can you determine the quantities of reactants and products in a chemical reaction
prohojiy [21]

Use the balanced equation.

5 0
3 years ago
If 25.16 g of chlorine react with 12.99 g of manganese metal, what is the empirical formula of the compound?
WARRIOR [948]

We use the given masses of the reactants to calculate the moles of Mn and Cl. Empirical formula represents the simplest mole ratio of atoms present in a compound.

Moles of Mn = 12.99 g Mn * \frac{1 mol Mn}{54.94 g Mn} = 0.236 mol Mn

Moles of Cl = 25.16 g Cl_{2} *\frac{1 mol Cl_{2}}{70.91 g Cl_{2}} * \frac{2 mol Cl}{1 mol Cl_{2}} = 0.710 mol Cl

Simplest mole ratio: Mn_{\frac{0.236}{0.236}}Cl_{\frac{0.710}{0.236}}

So the empirical formula is MnCl_{3}

6 0
3 years ago
A solution of H2SO4(aq) with a molal concentration of 5.25 m has a density of 1.266 g/mL. What is the molar concentration of thi
Igoryamba
<span>There are a number of ways to express concentration of a solution. This includes molarity and molality. Molarity is expressed as the number of moles of solute per volume of the solution.  MOlality is expressed as moles per kg solution. 

5.25 mol H2SO4 / kg solution ( 1 kg / 1000 g ) ( 1.266 g / mL ) ( 1000 mL / 1L ) = 6.6 M H2SO4</span>
5 0
3 years ago
What would be the mass of 3 moles of water molecules?
ankoles [38]

Answer:

\boxed {\boxed {\sf A. \ 54 \ grams }}

Explanation:

To convert from moles to grams, we must use the molar mass.

Recall that water's molecular formula is H₂O. It contains hydrogen and oxygen. Look up the two elements masses on the Periodic Table.

  • Hydrogen (H): 1.008 g/mol
  • Oxygen (O): 15.999 g/mol

Now, use these masses to find water's mass. The subscript of 2 tells us there are 2 atoms of hydrogen, so we multiply hydrogen's mass by 2 and add oxygen's.

  • H₂O= 2(1.008 g/mol) + 15.999 g/mol = 18.015 g/mol

Use the molar mass as a ratio.

\frac{18.015 \ g \ H_2 O}{ 1 \ mol \ H_2 O}

Multiply by the given number of moles.

3 \ mol \ H_2O*\frac{18.015 \ g \ H_2 O}{ 1 \ mol \ H_2 O}

The moles of water will cancel.

3 *\frac{18.015 \ g \ H_2 O}{ 1 }

3 *{18.015 \ g \ H_2 O}

54.045 \ g \ H_2O

Round to the nearest whole number. The 0 in the tenth place tells us to leave the number as is.

54 \ g \ H_2O

There are about <u>54 grams</u> of water in 3 moles.

7 0
3 years ago
Read 2 more answers
When one form of energy is converted to another form in any physical or chemical change, energy input alwasy equals energy outpu
aliya0001 [1]
In the context of chemistry, yes. Energy input is always equal to the energy output.
5 0
2 years ago
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