All categories

3 years ago

Help!!! will give brainliest

Chemistry

1 answer:

Trava [24]3 years ago

6 0

Answer:

THe answer is a because thermal energy is a result of potential energy

Explanation:

You might be interested in

Convert 254 ml in kg

lions [1.4K]

It is 0.0254

Hope that helps

3 0

4 years ago

What stated of matter and how many phases are present when a 5.0 mL sample of oil is mixed with 100.0 mL of water?

tamaranim1 [39]

two layers of different liquids=two phases.

Because oil doesn't dissolve in water. It only floats on water.

<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>

7 0

3 years ago

Calculating the Molecular Weight and Subunit Organization of a Protein From Its Metal Content The element molybdenum (atomic wei

Deffense [45]

Answer:

Dimer of two peptide chains with 1 mole of molybdenum metal each.

Explanation:

Percentage of molybdenum in protein = 0.08%

Molecular mass of nitrate reductase = 240,000 g

Mass of molybdenum = x

$0.08\%=\frac{x}{240,000 g}\times 100=192 g$

Moles of molybdenum = $\frac{192 g}{95.95 g/mol}=2.00 mol$

Each peptide chain of nitrate reductase contain 1 mole of molybdenum.

This means that nitrate reductase is composed of to two peptide chains. And in each peptide there is a single mole of molybdenum metal.

4 0

3 years ago

For the reaction, A(g) + B(g) => AB(g), the rate is 0.385 mol/L.s when the initial concentrations of both A and B are 2.00 mo

Tanya [424]

Answer : The rate for a reaction will be $0.14Ms^{-1}$

Explanation :

The balanced equations will be:

$A(g)+B(g)\rightarrow AB(g)$

In this reaction, $A$ and $B$ are the reactants.

The rate law expression for the reaction is:

$\text{Rate}=k[A]^2[B]^1$

or,

$\text{Rate}=k[A]^2[B]$

Now, calculating the value of 'k' by using any expression.

$\text{Rate}=k[A]^2[B]$

$0.385=k(2.00)^2(2.00)$

$k=0.0481M^{-2}s^{-1}$

Now we have to calculate the initial rate for a reaction that starts with 1.48 M of reagent A and 1.32 M of reagents B.

$\text{Rate}=k[A]^2[B]^0[C]^1$

$\text{Rate}=(0.0481)\times (1.48)^2(1.32)^1$

$\text{Rate}=0.14Ms^{-1}$

Therefore, the rate for a reaction will be $0.14Ms^{-1}$

7 0

4 years ago

Increasing temperature can

SOVA2 [1]

A- Change the phase of the matter

7 0

4 years ago