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3 years ago

Christy is a forensic scientist. She is given

Chemistry

1 answer:

Nitella [24]3 years ago

6 0

Answer:

The white powder is not sugar, so Christy's hypothesis is incorrect . Christy's next step should be to identify substances that have the measured molecular mass.

Explanation:

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Which subatomic particle is responsible for chemical properties of atoms?

Rainbow [258]

First question answer is, C<span>. electrons

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3 0

2 years ago

For an enzymatically catalyzed reaction in which the measured values for KM and Vmax are, respectively, 10.0 mM and 0.172 mM min

abruzzese [7]

Answer:

17.2 minutes is the value of the turnover number.

Explanation:

Using Michaelis-Menten equation:

$V = V_{max}\times \frac{[S]}{ (Km + [S])}$

$V_{max }=k_{cat}\times E_o$

Where :

$V_{max}$ = max rate velocity

[S] = substrate concentration

$K_m$ = Michaelis-Menten constant

V = reaction rate

$k_{cat}$ = catalytic rate constant

$E_o$ = initial enzyme concentration

We have :

$K_m=10.0mM$

$E_o=10.0\mu M=10.0\times 0.001 mM$

$V_{max}=0.172 mM/min$

$V_{max}$ is the rate is obtained when all enzyme is bonded to the substrate. $k_{cat}$ is termed as the turnover number.

$k_{cat}=\frac{V_{max}}{E_o}=\frac{0.172 mM}{10.0\times 0.001 mM}$

$=17.2 minutes$

17.2 minutes is the value of the turnover number.

3 0

3 years ago

According to the wave-mechanical model<br> of the atom, electrons are located in

Anon25 [30]

The nucleus im pretty sure

4 0

2 years ago

Read 2 more answers

Why electronegative decrease going down the periodic table

liraira [26]

Moving down in a group, the electronegativity decreases due to an increase in the distance between the nucleus and the valence electron shell, thereby decreasing the attraction, making the atom have less of an attraction for electrons or protons.

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2 years ago

Exercise while in space is important because it PREVENTS what?

dsp73

Answer:

bone loss and muscle deterioration

Explanation:

this helps the body keep thriving and bones strong and muscles in tact

8 0

3 years ago