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marshall27 [118]
2 years ago
8

Layer F can help scientists to correlate the relative age of another layer. What makes layer F useful for relative dating?

Chemistry
2 answers:
NemiM [27]2 years ago
8 0
D layer F contains index fossils because it is not the very top layer so it is not the youngest it is not at the very bottom so it is not the oldest and it is not a keybed it also has to shells which are fossils
topjm [15]2 years ago
5 0

Answer:

The answer is D (contains index fossils)

Explanation:

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AKALI METALS ARE HIGLY_______ SINCE THEY ______ easily to form ions. HELP ASAP
kvv77 [185]

Answer:

Reactive and lose 1 electron

Explanation:

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3 years ago
What is love and why are people scared to show love even if they like boys or girls
myrzilka [38]
Because society has shaped our mind on what we shall think about things
6 0
3 years ago
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Which states of matter only appear in the hydrosphere
Oliga [24]
I would say the answer is liquids
7 0
3 years ago
Calculate the mass (grams) of 0.750 moles of Al2(Cr2O7)3
garik1379 [7]

Answer:

526g is the mass of this sample

Explanation:

To solve this question we must, as first, find the <em>molar mass </em>of Al₂(Cr₂O₇)₃ using the periodic table. The molar mass is defined as the mass of this compound per mole. With this value we can find the mass in 0.750 moles as follows:

<em>Molar mass Al₂(Cr₂O₇)₃</em>

2Al = 2*26.98g/mol = 53.96g/mol

6 Cr = 6*51.9961g/mol = 311.9766g/mol

21 O = 21*15.999g/mol = 335.979g/mol

53.96g/mol + 311.9766g/mol + 335.979g/mol

= 701.9156g/mol

The mass of 0.750 moles is:

0.750 moles * (701.9156g / mol) =

<h3>526g is the mass of this sample</h3>
8 0
2 years ago
The following reaction is at equilibrium in a sealed container.
ale4655 [162]

Answer:

D.Lowering the temperature is the best option.

Explanation:

The value of equilibrium constants aren't changed with change in the pressure or concentrations of reactants and products in equilibrium. The only thing that changes the value of equilibrium constant is a change of temperature.

In the reaction below for example;

A + B <==>C+D

If you have moved the position of the equilibrium to the right (and so increased the amount of C and D), why hasn't the equilibrium constant increased?

Let's assume that the equilibrium constant mustn't change if you decrease the concentration of C - because equilibrium constants are constant at constant temperature. Why does the position of equilibrium move as it does?

If you decrease the concentration or pressure of C, the top of the Kc expression gets smaller. That would change the value of Kc. In order for that not to happen, the concentrations of C and D will have to increase again, and those of A and B must decrease. That happens until a new balance is reached when the value of the equilibrium constant expression reverts to what it was before.

3 0
3 years ago
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