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uysha [10]
3 years ago
14

Explain what happens during a solar eclipse

Chemistry
2 answers:
marusya05 [52]3 years ago
7 0

Answer:

the moon gets in the way of the sun and cast a shadow onto earth

Explanation:

erma4kov [3.2K]3 years ago
4 0

Answer:

a solar eclipse is when the moon moves between the earth and the sun, so the moon casts a shadow on the earth

Explanation:

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2.0 cm + 2.6 cm + 4.2 mm =<br><br> Please show work
Setler [38]
Hi ;)!
So:
4.2 mm (/10) = 0.42 cm

2.0 cm + 2.6 cm + 0.42 cm =  5.02 cm ;)
3 0
3 years ago
at a certain temperature nitrogen dioxide gives dinitrogen tetroxide in a second order reaction. the rate constant for this reac
Harrizon [31]

Answer:

memes

Explanation:

memes are the answers, ma doods

3 0
3 years ago
Consider a system of nitrogen with temperature of 288k and pressure of 8 mpa what is the compressibility factor?
Alla [95]

The compressibility factor is 1.1.

Temperature of Nitrogen = 288 K

Pressure of Nitrogen = 8mpa

The ideal gas law's departure is compensated for by the compressibility factor (Z). An equation of state or industry correlation based on the following relationship is used to compute the compressibility factor:

                                            PV = ZRT

Z ~f (composition, P, T)

where,

Z = compressibility factor at P, T for a given composition.

P = absolute pressure.

T = temperature.

R = universal gas constant.

                             V = \frac{ZRT}{P}

                                 = (Z × 8.314 × 288) / 8 × 10⁷

                                 = (299.30 × 10⁻⁷) Z m³/kg

The reduced temperature is the ratio of the temperature of the gas to its critical temperature. Similarly, the reduced pressure is the ratio of the gas pressure to its critical pressure as described in the following equations:

T_r=\frac{T}{T_c} \\\\P_r=\frac{P}{P_c}

P – Absolute pressure of gas

T – Absolute temperature of gas

Tr – Reduced temperature

Pr – Reduced pressure

Tc – Critical temperature

Pc – Critical pressure

T_r= \frac{288}{126.2} = 2.3\\\\P_r = \frac{8}{3.39} = 2.3

Z = 1.1 (from the compressibility chart)

V = 329.23 10⁻⁷ m³/kg

Therefore, the compressibility factor is 1.1.

Learn more about  compressibility factor here:

brainly.com/question/13254691

#SPJ4

5 0
2 years ago
What mass of oxygen gas will be consumed if 100.0 grams of hydrogen gas are consumed
Genrish500 [490]

Answer:

793.6g of oxygen

Explanation:

Step 1:

We'll begin by writing a balanced equation for the reaction between hydrogen and oxygen. This is illustrated below:

2H2 + O2 —> 2H2O

Step 2:

Determination of the masses of H2 and O2 that reacted from the balanced equation. This is illustrated below:

Molar Mass of H2 = 2 x 1.008 = 2.016g/mol

Mass of H2 from the balanced equation = 2 x 2.016 = 4.032g

Molar Mass of O2 = 2 x 15.999 = 31.998g/mol

Summary:

From the balanced equation above,

4.032g of H2 reacted with 31.998g of O2.

Step 3:

Determination of the mass of O2 that will react with 100g of H2. This is illustrated below:

From the balanced equation above,

4.032g of H2 reacted with 31.998g of O2.

Therefore, 100g of H2 will react with = (100 x 31.998) /4.032 = 793.6g of O2.

Therefore, 793.6g of oxygen gas will be consumed if 100g of Hydrogen is consumed.

5 0
4 years ago
How many protons, neutrons, electrons, does isotope number 19 and mass of 39?
WINSTONCH [101]
Answer is potassium: 19 protons, 19 electrons, 20 neutrons, mass of 39
4 0
3 years ago
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