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iris [78.8K]
3 years ago
9

What statement defines enzymatic activity

Chemistry
1 answer:
egoroff_w [7]3 years ago
8 0
Enzymes regulate cellular functions through feedback mechanisms. ... It is a homogeneous catalyst because both the reactant and the enzyme are liquids. What overall effect does adding a catalyst have on a chemical reaction? It lowers the activation energy that is needed.
You might be interested in
Explain why halogens are oxidising agents.
tatuchka [14]

Answer:

They have a high tendency to gain an electron and thus act as a strong oxidizing agent.

Explanation:

4 0
3 years ago
If a radioactive isotope of thorium (atomic number 90, mass number 232) emits 6 alpha particles and 4 beta particles during the
kolbaska11 [484]

Answer:

The mass number of the stable daughter product is 208

Explanation:

First thing's first, we have to write out the equation of the reaction. This is given as;

²³²₉₀Th → 6 ⁴₂α  +  4 ⁰₋₁ β + X

In order to obtain the identity of X, we have to obtain it's mass numbers and atomic number.

There is conservation of matter so we expect the mass number to remain the same in both the reactant and products.

Mass Number

Reactant = 232

Product = (6* 4 = 24) + (4 * 0 = 0) + x = 24 + x

since reactant = product

232 = 24 + x

x = 232 - 24 = 208

Atomic Number

Reactant = 90

Product = (6* 2 = 12) + (4 * -1 = -4) + x = 8 + x

since reactant = product

90 = 8 + x

x = 90 - 8 = 82

5 0
3 years ago
The tables show the mass, volume, and appearance of four unknown substances and the densities of four known substances.
Kazeer [188]

Answer:

Substance S is GLYCEROL.

Explanation:

To know what substance S represent, let us determine the density of substance S.

From the question given above, the following data were obtained:

Mass of S = 92.09 g

Volume of S = 73.09 mL

Density of S =..?

Density = mass /volume

Density of S = 92.09/73.09

Density of S = 1.26 g/mL

Finally, we shall determine what substance S represent as follow:

Comparing the density of substance S (i.e 1.26 g/mL) with those given in question above, substance S is GLYCEROL.

4 0
3 years ago
PLEASE HELP!!!!!!!!Which of the following chemical reactions is best clasified as an acid-base reaction?
ANTONII [103]

Answer:

d . H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O

Explanation:

  • The given reactions are:

a . 2HgO → 2Hg + O₂,

It is a decomposition reaction, that HgO is decomposed to give Hg and O.

b . Na₂SO₄ + BaCl₂ → BaSO₄ + 2NaCl,

It is a double replacement reaction where two salts replaces their cations and anions with each others producing 2 new salts.

c . Zn + 2AgNO₃ → Zn(NO₃)₂ + 2Ag,

It is a single replacement reaction, that Zn replaces Ag from its salt.

d . H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O

It is acid-base reaction "neutralization reaction" where H₂SO₄ (acid) reacts with KOH (base) producing K₂SO₄ (salt) and water.

  • So, the right choice is:

<em>d . H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O</em>

<em></em>

3 0
4 years ago
Write the chemical equation for the reaction of ammonia with hydrogen chloride
raketka [301]
If you mix Ammonia as well as Hydrogen chloride, you will get ammonium chloride. It is given by NH3 (g) + HCl (g) → NH4Cl(s).
3 0
3 years ago
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