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3 years ago

Ben observes how quickly some dry wood is burning in a campfire. Which term best relates to Ben’s observation?

Chemistry

1 answer:

Sedbober [7]3 years ago

5 0

Answer:

Reaction rate

Explanation:

We are told that Ben observes how quickly some dry wood is burning in a campfire.

This is an example of reaction rate because it tells us the speed i.e. how fast the dry wood is reacting with the camp fire.

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A beaker is filled to the 500 mL mark with alcohol. What increase in volume (in mL) does the beaker contain when the temperature

Aliun [14]

Answer:

"1.4 mL" is the appropriate solution.

Explanation:

According to the question,

$v_0=500$
$\alpha =1.12\times 10^{-4}$
$\Delta \epsilon = 25$

Now,

Increase in volume will be:

⇒ $\Delta V = \alpha\times v_0\times \Delta \epsilon$

By putting the given values, we get

$=1.12\times 10^{-4}\times 500\times 25$

$=1.12\times 10^{-4}\times 12500$

$=1.4 \ mL$

8 0

4 years ago

ASAP please answer correctly and I will mark brainliest

mr_godi [17]

Answer: 1=A 2=b 3=c

Explanation:

5 0

3 years ago

Which best explains why blood is considered to be a suspension?

rusak2 [61]

Blood is considered a suspension because it contains particles that can settle out. A (heterogeneous) suspension is defined as a mixture between a liquid and particles of a solid. In the case, the particles do not dissolve. The particles and the liquid are mixed up so that the particles are dispersed throughout the liquid. They are "suspended" in the liquid. A key characteristic of a suspension is that the solid particles will settle and separate over time if left alone. This is exactly what happens when anti-coagulated blood is left to stand alone for some time. Blood cells separate and settle from the plasma, the watery part of the blood.

4 0

3 years ago

Read 2 more answers

(1) Distinguish between a pure

Darya [45]

Explanation:

Pure substances are distinct substances and are usually elements and compounds.

Impure substances are usually mixtures.

In terms of properties:

Pure substances are the same throughout i.e homogeneous whereas impure substances are either homogeneous or heterogeneous.

Separation techniques:

Pure substances cannot easily be separated by physical methods whereas impure substances can easily be separated into their constituents by physical methods.

Composition:

Pure substances have definite composition both macro and microscopically whereas impure substances have indefinite compositions as they are composed of two or more elements and compounds in any proportion by mass. Impure substances retain their identities i.e physical properties are retained.

Learn more:

Mixtures brainly.com/question/1446244

More on mixture brainly.com/question/1832352

#learnwithBrainly

4 0

3 years ago

Which answer choice correctly names the element that Mendeleev predicted would be discovered and placed in the aluminum column?

Reika [66]

The answer is Ga.

That is gallium (Ga), correctly names the element that Mendeleev predicted would be discovered and placed in the aluminum column.

Gallium (Ga) is the element that Mendeleev predicted would be discovered and placed in the aluminum column.

So the answer is Gallium (Ga) that is there in the 13th group of periodic table or in aluminium column.