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Umnica [9.8K]
3 years ago
14

What enzyme catalyzes carbohydrates in the mouth?

Chemistry
1 answer:
Firlakuza [10]3 years ago
4 0

Answer:

<u><em>We previously learned that digestion of carbohydrates, and in particular starches, begins in the mouth with the action of salivary amylase. This enzyme catalyzes, or speeds along, the hydrolysis of the starch molecule.</em></u>

Explanation:

I hope I helped =)

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Write balanced equation of carbon burning in air​
Ne4ueva [31]

Answer:

When carbon is burned in air, it forms carbon dioxide gas and releases a large amount of heat and some light:

C+O2= CO2+ heat+ light

6 0
2 years ago
Read 2 more answers
In a constant‑pressure calorimeter, 60.0 mL of 0.300 M Ba(OH)2 was added to 60.0 mL of 0.600 M HCl. The reaction caused the temp
Zepler [3.9K]

Answer:

ΔH = 57.04 Kj/mole H₂O

Explanation:

60ml(0.300M Ba(OH)₂(aq) + 60ml(0.600M HCl(aq)

=> 0.06(0.3)mole Ba(OH)₂(aq) + 0.60(0.6)mole HCl(aq)

=> 0.018mole Ba(OH)₂(aq) + 0.036mole HCl(aq)

=> 100% conversion of reactants => 0.018mole BaCl₂(aq) + 0.036mole H₂O(l) + Heat

ΔH = mcΔT/moles H₂O <==> Heat Transfer / mole H₂O

=(120g)(4.0184j/g°C)(27.74°C - 23.65°C)/(0.036mole H₂O)

ΔH = 57,042 j/mole H₂O = 57.04 Kj/mole H₂O

3 0
3 years ago
Limestone (CaCO3) is decomposed by heating to quicklime (CaO) and carbon dioxide. Calculate how many grams of quicklime can be p
Harman [31]

Answer: 2800 g

Explanation:

CaCO_3(s)\rightarrow CaO(s)+CO_2(g)

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Given mass = 5 kg = 5000 g

\text{Number of moles}=\frac{5000g}{100g/mol}=50moles

1 mole of CaCO_3 produces = 1 mole of CaO

50 moles of CaCO_3 produces =\frac{1}{1}\times 50=50moles of CaO

Mass of CaO=moles\times {\text{Molar mass}}=50moles\times 56g/mole=2800g

2800 g of CaO is produced from 5.0 kg of limestone.

3 0
3 years ago
What kind of intermolecular forces between an ammonia molecule and a water molecule? Note: there is more than one type of interm
dimaraw [331]

Answer:

hydrogen bonding

Explanation:

Dipole-Dipole, Dispersion, hydrogen bonding and ion bond

5 0
3 years ago
Analysis of a metal salt CrX3 shows it contains 32.84% cr by mass. What is molar mass of x.
zysi [14]

Answer:

35.4451011

Explanation:

6 0
3 years ago
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