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3 years ago

Which data are shown on topographic maps?

Chemistry

1 answer:

Radda [10]3 years ago

3 0

Answer : A
explanation:
it gives information about elevation and slope

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An experiment is designed to determine the launch angle that will give a projectile the greatest range (make it go the longest d

konstantin123 [22]

The dependent variable is the variable which is the result of the changing experimental variable. In this case, how far the rock went is a result of changing the angle of launch. Therefore, how far the rock went is the dependent variable.

7 0

3 years ago

Which refers specifically to a heated solution that holds more dissolved solution than it can hold at a lower temperature?.

Westkost [7]

Answer:

Supersaturated solution

Explanation:

Weren't there any options?

Anyways, the best I can think of right now is a supersaturated solution.

4 0

2 years ago

Consider the reaction 2N2(g) O2(g)2N2O(g) Using the standard thermodynamic data in the tables linked above, calculate Grxn for t

ratelena [41]

Answer:

$\Delta G^0 _{rxn} = 207.6\ kJ/mol$

ΔG ≅ 199.91 kJ

Explanation:

Consider the reaction:

$2N_{2(g)} + O_{2(g)} \to 2N_2O_{(g)}$

temperature = 298.15K

pressure = 22.20 mmHg

From, The standard Thermodynamic Tables; the following data were obtained

$\Delta G_f^0 \ \ \ N_2O_{(g)} = 103 .8 \ kJ/mol$

$\Delta G_f^0 \ \ \ N_2{(g)} =0 \ kJ/mol$

$\Delta G_f^0 \ \ \ O_2{(g)} =0 \ kJ/mol$

$\Delta G^0 _{rxn} = 2 \times \Delta G_f^0 \ N_2O_{(g)} - ( 2 \times \Delta G_f^0 \ N_2{(g)} + \Delta G_f^0 \ O_{2(g)})$

$\Delta G^0 _{rxn} = 2 \times 103.8 \ kJ/mol - ( 2 \times 0 + 0)$

$\Delta G^0 _{rxn} = 207.6\ kJ/mol$

The equilibrium constant determined from the partial pressure denoted as $K_p$ can be expressed as :

$K_p = \dfrac{(22.20)^2}{(22.20)^2 \times (22.20)}$

$K_p = \dfrac{1}{ (22.20)}$

$K_p$ = 0.045

$\Delta G = \Delta G^0 _{rxn} + RT \ lnK$

where;

R = gas constant = 8.314 × 10⁻³ kJ

$\Delta G =207.6 + 8.314 \times 10 ^{-3} \times 298.15 \ ln(0.045)$

$\Delta G =207.6 + 2.4788191 \times \ ln(0.045)$

$\Delta G =207.6+ (-7.687048037)$

$\Delta G =$ 199.912952 kJ

ΔG ≅ 199.91 kJ

7 0

4 years ago

When atoms combine they form A. molecules B.periodic table C.particles D.protons

IceJOKER [234]

Answer

A. molecules

Explanation

When atoms or elements combine, they are called molecules. When molecules combine they form compounds.

6 0

4 years ago

Which group of elements ,in the periodic table, would most likely be used for electrical wires?

grin007 [14]

Most electrical wiring uses copper

5 0

3 years ago