2 years ago

What is the location on the surface direction above the earthquake focus called

1 answer:

6 0

An earthquake's focus is located along a fault beneath Earth's surface. The focus is the point within Earth where an earthquake starts. The epicenter is the location on the surface directly above the focus.

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In which process are simple materials chemically combined to form more complex materials?

allsm [11]

Answer:

A) synthesis

I hope this helps!

3 0

2 years ago

If element X has 65 protons, how many electrons does it have

Tomtit [17]

In an atom there are the same number of protons as electrons to start with. The answer would be 65 aswell.

8 0

3 years ago

Read 2 more answers

A gas is enclosed in a cylinder fitted with a piston. The volume of the gas is 2.00 L at 0.524 atm. The piston is moved to incre

MAXImum [283]

Answer:0.20L

Explanation:

Data

P1 =0.524atm

V1=2L

P2=5.15atm

V2=?

Apply Boyle' law

P1V1 =P2V2

P2 =P1V1/P2

= 0.524x 2 /5.15

= 0.20 L

3 0

2 years ago

The ph of a solution of HCIO2 is _____ 7.0 a)greater than b)less than c)equal to

weeeeeb [17]

Answer:

Explanation:

HCIO2 is a) Greater than 7.0

7 0

2 years ago

Carbon dioxide, when it is at -145 degreesC has a density of 2.54 g/L. What is the pressure in torr??

Black_prince [1.1K]

Answer: The pressure in torr is 461 torr

Explanation:

To calculate the relation of density and molar mass of a compound, we use the ideal gas equation:

PV=nRT

P = pressure

V = Volume

n = number of moles

R = gas constant = 0.0821 Latm/Kmol

T = temperature = $-145^0C=(273-145)K=128K$

Number of moles (n) can be written as:

$n=\frac{m}{M}$

where, m = given mass

M = molar mass = 44 g/mol

$PV=\frac{m}{M}RT\\\\PM=\frac{m}{V}RT$

where,

$\frac{m}{V}=d$

where d = density = 2.54 g/L

The relation becomes:

PM=dRT

$P=\frac{dRT}{M}$

$P=\frac{2.54\times 0.0821\times 128}{44}=0.607atm$

$P=461torr$ (760torr=1atm)

Thus the pressure in torr is 461 torr

5 0

2 years ago