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Cerrena [4.2K]
3 years ago
6

What type of mixture scatters light and cannot be filtered

Chemistry
1 answer:
AlladinOne [14]3 years ago
3 0
<span>Colloid is a type of mixture that scatters light and cannot be filtered. Colloids are heterogeneous mixtures with a particle size between that of the solutions and that of the suspensions: the size of the particles of a colloid is bigger than the molecules or ions of a solution and smaller than the particles of a suspension. Due to the small size of the particles in the colloids, the diluted colloids seem homogeneous, but those particles are big enough to produce the Tyndall effect, which is the dispersion of the light. Solutions do not show Tyndall effect.</span>
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What number should be placed in front of Fe to balance this chemical
andrew-mc [135]

the answer is B. 2

because there is 2 iron on the right side so you need another two on the left side to balance it out

6 0
3 years ago
How many molecules of lactate can one molecule of lactate dehydrogenase act on in 21 minutes?
USPshnik [31]
The turnover number (number of molecules the enzyme can act on per second) for lactase dehydrogenase is 1,000 lactate molecules per second.
In one minute, this becomes:

(1,000 molecules / second) * (60 seconds / minute)
= 60,000 molecules / minute

In 21 minutes, this will be:

60,000 * 21

= 1.26 x 10⁶ molecules of lactate
6 0
4 years ago
Calculate the standard cell potential (E∘) for the reaction X(s)+Y+(aq)→X+(aq)+Y(s) if K = 8.97×10−3. Express your answer to thr
puteri [66]

Answer: The standard cell potential (E∘) for the reaction X(s)+Y^+(aq)\rightarrow X^+(aq)+Y(s)  is -0.121 V

Explanation:

The reaction is:

X(s)+Y^+(aq)\rightarrow X^+(aq)+Y(s)

Relation between standard Gibbs free energy and equilibrium constant follows:

\Delta G^o=-RT\ln K

where,

\Delta G^o = Standard Gibbs free energy = ?

R = Gas constant = 8.314J/K mol

T = temperature = 298 K

K= equilibrium constant = 8.97\times 10^{-3}

Putting values in above equation, we get:

\Delta G^0=-(8.314J/Kmol\times 298K\times \ln (8.97\times 10^{-3})\\\\\Delta G^0=11678.9J/mol

To calculate standard Gibbs free energy, we use the equation:

\Delta G^o=-nFE^o_{cell}

Where,

n = number of electrons transferred = 1

F = Faradays constant = 96500 C

E^o_{cell} = standard cell potential = ?

Putting values in above equation, we get:

11678.9J/mol=-1\times 96500\times E^0_{cell}

\frac{11678.9J/mol}{-96500}=E^0_{cell}

-0.121V=E^0_{cell}

Thus standard cell potential (E∘) for the reaction X(s)+Y^+(aq)\rightarrow X^+(aq)+Y(s)  is -0.121 V

5 0
4 years ago
What is the density of a 6.0 × 102 mL liquid sample that weighs 450 g?
mart [117]

Answer:

<h2>Density = 0.75 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

Density =  \frac{mass}{volume}

From the question

mass = 450 g

volume = 6.0 × 10² mL

Substitute the values into the above formula and solve for the density

That's

Density =  \frac{450}{6 \times  {10}^{2} }  =  \frac{450}{6 00}  \\  =  \frac{3}{4}

We have the final answer as

<h3>Density = 0.75 g/mL</h3>

Hope this helps you

8 0
3 years ago
What is the change in atomic number when an atom emits a beta particle?
salantis [7]

When an atom emits a beta particle from the nucleus, the nucleus only has one more proton and one less neutron and this will make the atomic mass number remains unchanged while the atomic number increases by 1.

<span>I hope this answer helps you!</span>

4 0
3 years ago
Read 2 more answers
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