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3 years ago

When one metal mixes into the crystalline lattice of another it is called a(n)

Chemistry

2 answers:

Mumz [18]3 years ago

8 0

Alloy : type of substance that is made by melting of two or more elements together

ikadub [295]3 years ago

3 0

Answer:

it would be an alloy

Explanation:

It is a type of substance that is made by the melting of two or more elements together.

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sucrose is composed of carbon hydrogen and oxygen which of the following is not needed in order to determine the precent by mass

Dimas [21]

Explanation:

It is often desirable to determine the mass percent of elements in a given compound.

To determine the mass percent of elements:

Evaluate the formula mass of the compound. This is done by summing the atomic masses of the atoms in the compound together.
The mass percentage is determined by pacing the mass contribution of each element or group to the formula mass of the compound and multiply by 100.

Learn more:

Percent by mass brainly.com/question/5544078

#learnwithBrainly

3 0

3 years ago

Is the climate change that Greenland is experiencing and will continue to experience a good thing or bad thing for Greenland and

KATRIN_1 [288]

Answer:

bad thing.

Explanation:

most of Greenland is an icy island with the only main population on the west coast.

Although this would probably open up more land for use; the rising sea levels are a much bigger threat comparatively with the perks of warmer climate.

8 0

3 years ago

Read 2 more answers

The rate constant k for a certain reaction is measured at two different temperatures temperature 376.0 °c 4.8 x 108 280.0 °C 2.3

9966 [12]

Answer:

The activation energy for this reaction = 23 kJ/mol.

Explanation:

Using the expression,

$\ln \dfrac{k_{1}}{k_{2}} =-\dfrac{E_{a}}{R} \left (\dfrac{1}{T_1}-\dfrac{1}{T_2} \right )$

Where,

$k_1\ is\ the\ rate\ constant\ at\ T_1$

$k_2\ is\ the\ rate\ constant\ at\ T_2$

$E_a$ is the activation energy

R is Gas constant having value = 8.314×10⁻³ kJ / K mol

$k_2=2.3\times 10^8$

$T_2=280\ ^0C$

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T = (280 + 273.15) K = 553.15 K

$T_2=553.15\ K$

$k_1=4.8\times 10^8$

$T_1=376\ ^0C$

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T = (376 + 273.15) K = 649.15 K

$T_1=649.15\ K$

So,

$\left(\ln \left(\:\frac{4.8\times \:\:\:10^8}{2.3\times \:\:\:10^8}\right)\right)\:=-\frac{E_a}{8.314\times \:10^{-3}\ kJ/mol.K}\times \:\left(\frac{1}{649.15\ K}-\frac{1}{553.15\ K}\right)$