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just olya [345]
2 years ago
6

A student makes a cross-section clay model to represent the internal structure of a volcano that leads to the formation of two r

ocks (X and Y). The student records the processes that
affect the type of rock that is formed in a table,
volcano
aboveground
underground
K
Process
1
2
3
Details
rate of cooling of the rock
composition of the rock
pressure exerted on the rock
Which process(es) cause(s) the rock formed at location X to be different from the rock formed at location Y?
1 only
2 only
• 1 and 3
Activate Windows
Go to Settings to activate Windows.
2 and 3
Tas PM

Chemistry
1 answer:
Murrr4er [49]2 years ago
6 0

CAnswer:

Explanation:

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From the given elements Na, P , Ca ,Br which one has highest first ionization energy , ,smallest atomic size , most metallic cha
madam [21]

Answer:

highest first ionization energy - Br

smallest atomic size - Br

most metallic character - Na

Explanation:

Ionization energy of Br is higher than P because higher zeff value

Sodium is more metallic than calcium because it is able to loose electron more readily as compared to calcium because of higher electro positivity.

Atomic radius of Br is the smallest as its atomic radius is 114, P (115), Ca (197), Na (186)

 

 

5 0
3 years ago
Melissa wants to separate a mixture of many tiny beads that are all the same size. Some of the beads are made from pine wood and
Volgvan

Answer:

Your answer here is B. Add water and the wooden beads will float.

Explanation:

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5 0
2 years ago
Read 2 more answers
In which of the following is most of the water on earth held?
Blizzard [7]
The most water on earth is held by the oceans . 
4 0
3 years ago
The solubility of N2 in blood can be a serious problem (the "bends") for divers breathing compressed air (78% N2 by volume) at d
OLga [1]

Answer:

The volume is 19.7 mL

Explanation:

<u>Step 1</u>: Given data

Pressure at sea level = 1.00 atm

Pressure at 50 ft = 2.47535 atm

kH for N2 in water at 25°C is 7.0 × 10−4 mol/L·atm

Molarity (M) = kH x P

<u>Step 2</u>: Calculate molarity

M at sea level:

M = 7.0*10^-4 * (1.00atm * 0.78) = 5.46*10^-4 mol/L

M at 50ft:

M = 7.0*10^-4 * (2.47535atm * 0.78) = 13.5*10^-4 mol/L

We should find the volume of N2. To find the volume whe have to find the number of moles first. This we calculate by calculating the difference between M at 50 ft and M at sea level.

13.5*10^-4 mol/L - 5.46*10^-4 mol/L = 8.04*10^-4 mol/L

Step 3: Calculate volume

P*V=nRT

with P = 1.00 atm

with V = TO BE DETERMINED

with n =  8.04*10^-4 mol/L  *1L = 8.04*10^-4

with R= 0.0821 atm * L/ mol *K

with T = 25 °C = 273+25 = 298 Kelvin

To find the volume, we re-organize the formula to: V=nRT/P

V= (8.04*10^-4 mol * 0.0821 (atm*L)/(mol*K)* 298K ) / 1.00atm = 0.0197L = 19.7ml

The volume is 19.7 mL

5 0
3 years ago
How can you model the cycling of matter in the Earth system?
Rus_ich [418]

Answer:

The cycling of matter is important to many Earth processes and to the survival of organisms the existing matter must cycle continuously for this planet to support life Water, carbon, nitrogen, phosphorus, and even rocks move through cycles If these materials did not cycle, Earth could not support life.

Explanation:

5 0
2 years ago
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