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3 years ago

Choose all that apply. As glaciers melted at the end of the last Ice Age:

Chemistry

2 answers:

valina [46]3 years ago

8 0

Sea level increased and river planes drowned

Kaylis [27]3 years ago

3 0

As glaciers melted at the end of the last Ice Age worldwide sea level increased immensely and river plains were flooded. Glaciers are floating bodies of ice. Ice is frozen water. When glaciers started melting water that had been frozen for decades or centuries was released back into the ocean. That lead to an increase in sea level. This also led to river plains being drowned/flooded. Therefore, the answer is 1 and 2.

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Which of the following describes an element? Choose all that apply.

Kisachek [45]

Answer:

A) Gold is an example.

D) There is only one type of substance present.

F) Composed of one type of atom with its own unique properties.

Explanation:

Hello! These are the correct answers! (I took the K12 quiz)

Have a blessed day! :)

5 0

3 years ago

When heated water becomes water vapor and turns from a liquid to a gas, what process is occurring?

Paladinen [302]

<span>B.) When heated water becomes water vapor and turns from a liquid to a gas, "Evaporation" is Occurring.

Hope this helps!</span>

3 0

3 years ago

Read 2 more answers

Boron has two naturally occurring isotopes; B-10 with a mass of 10.01 amu and a natural abundance of 20.00%, and B-11 with a mas

balandron [24]

Atomic mass of boron = 10.81

<h3>What are Isotopes?</h3>

Isotopes are variants of a particular element in which they have the same number of protons but differ in the number of neutrons in the atom.

So, here as we said we have isotopes which weigh 10.01 and 11.01.

Given,

relative abundance of B-10 = 10.1 amu

relative abundance of B- 11 = 11.01 amu

percentage of B-10 = 20%

percentage of B-11 = 80%

Then the relative atomic mass depends upon the relative abundance of various isotopes of that particular element. Suppose an element consists of two isotopes and average atomic mass is equal to

(Relativeabundance(1)×Atomicmass(1)+Relativeabundance(2)×Atomicmass(2)) / (Relativeabundance(1)+Relativeabundance(2))

Atomic mass of boron = (20 × 10.01 + 80 × 11.01) / (80 + 20 )

= 1081/100

= 10.81

To learn more about atomic mass from the given link

brainly.com/question/3187640

#SPJ4

8 0

2 years ago

The following data are obtained for the decomposition of N2O5 at a certain temperature: 2N2O5(g) ↔ 4NO2(g) + O2(g) Time(s) 0 200

cricket20 [7]

Answer:

K = 0.0003 s⁻¹

Explanation:

The reaction is

2N₂O₅ = 4NO₂ + O₂

The equilibrium is

$K[N_{2} O_{5} ]=-\frac{1}{2} \frac{d[N_{2} O_{5} ]}{dt} \\\int\limits^y_x {d[N_{2} O_{5} ]}{} \, =-2k\int\limits^t_0 {dt} \,\\ln[N_{2} O_{5} ]=-2kt+ln[N_{2} O_{5} ]$

a plot is attached

From the plot, the slope is -0.0006

-2 * K = -0.0006

K = 0.0003 s⁻¹

Download xlsx

6 0

3 years ago

Which characteristics describe bacteria? Check all that apply. are microscopic are single celled are multicelled have shapes tha

belka [17]

Answer:

Are microscopic

Are single celled

Have shapes that include sphere, rod, and spiral

Do not have nuclei and membrane-bound organelles

4 0

4 years ago