While testing amylase activity, John uses a buffer of pH 6 and substrate starch. He incubates them at 104ºF (40ºC). All the tubes show glucose formation, except one, which had no starch solution. Why did this happen?A) the optimum pH for enzyme amylase is not pH 6
B) the optimum temputure for the enzyme amylase is not 104. F (40.)
C) the substrate for amylase, starch, is not present

Answers

Answer 1

Answer: While testing amylase activity, John uses a buffer of pH 6 and substrate starch. He incubates them at 104ºF (40ºC). All the tubes show glucose formation, except one, which had no starch solution because the substrate for amylase, starch, is not present so thats why it does not show glucose formation
so correct option is C
hope it helps

Answer 2

Answer:

Answer:

Explanation:

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What happens when the kinetic energy of molecules increases so much that electrons are released by the atoms, creating a swirling gas of positive ions and negative electrons?

Answers

the answer is d in this case

Answer:

it's C

Explanation:

The scattering of light by a colloid is called the Brownian lighting, Tyndall effect, colloidal scattering, or aggregate reflection.

Answers

The correct answer is the Tyndall effect. This is also known as the Tyndall scattering. It is the light scattering by the particles in a colloid or in a suspension. This phenomenon is used to determine size and density of particles in colloidal matter.

Answer:

Read more on Brainly.com - brainly.com/question/1381101#readmore

Explanation:

How many grams of calcium phosphate can be produced when 89.3 grams of calcium chloride reacts with excess sodium phosphate? Unbalanced equation: CaCl2 + Na3PO4 → NaCl + Ca3(PO4)2

Show, or explain, all of your work along with the final answer.

Answers

The grams of calcium phosphate that can be produced when 89.3 grams of calcium chloride reacted with excess sodium phosphate is

83.08 grams of calcium phosphate

calculation

Step 1: write a balanced chemical equation

3CaCl₂ + 2Na₃Po₄ →6NaCl + Ca₃(PO₄)₂

step 2: find the moles of CaCl₂

moles = mass÷ molar mass

from periodic table the molar mass of CaCl₂ = 40 +( 2 x 35.5) =111 g/mol

moles = 89.3 g÷111 g/mol = 0.805 moles

Step 3: use the mole ratio to determine the moles of Ca₃(PO₄)₂

CaCl₂: Ca₃(PO₄)₂ is 3:1 therefore the moles of Ca₃(PO₄)₂ =0.805 x 1/3 =0.268 moles

Step 4: find mass of Ca₃(PO₄)₂

mass = moles x molar mass

from periodic table the molar mass of Ca₃(PO₄)₂ = (40 x3) +[ 31 +(16 x4)]2 =310 g/mol

mass is therefore =0.268 moles x 310 g/mol =83.08 grams

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Answers

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Answer:

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Explanation:

The atomic number is the _____. atomic mass number of neutrons protons plus the neutrons number of protons

Answers

The atomic number of an atom is determined by the number of protons present in the atom that is the atomic number and number of protons are same for an atom. It is unique for every atom.

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Hence, the atomic number is the number of protons.

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The bottle left outside will have the same vapor pressure as the bottle inside the room because they both contain water.

The bottle left outside will have higher vapor pressure than the bottle from the room.

No change to either bottle.

Answers

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