When does a total solar eclipse take place?

A student measures the mass of a sample of a metallic element, M. Then the student heats the sample in air, where it completely reacts to form the compound MO. The student measures the mass of the compound that was formed.

Identify the compound where the groups are axial and equatorial. trans-1,4-dibromocyclohexane cis-1,4-dibromocyclohexane cis-1,3-dibromocyclohexane trans-1,2-dibromocyclohexane none of them

When Group 1 elements form ions, they?

For each set of values, calculate the missing variable using the ideal gas law. P V T n Set 1 2.61 atm 1.69 L 36.1 °C n₁ Set 2 302 kPa 2382 mL T₂ 3.23 mol Set 3 P₃ 0.0250 m³ 288 K 1.08 mol Set 4 782 torr V₄ 303 K 5.26 mol

Given the equation representing a closed system:N2O4 (g) 2NO2 (g) Which statement describes this system at equilibrium?

Identify the combustion reaction. c4h12 + 7o2 ⟶ 6h2o + 4co2 2h2 + o2 ⟶ 2h2o al2s3 ⟶ 2al + 3s cl2 + 2kbr ⟶ 2kcl + br2

A water molecule consists of an oxygen atom and two hydrogen atoms covalently bonded in a bent shape. Oxygen however, attracts the shared electrons more strongly than the hydrogen atoms. This structure leads to which important property of water? a.

How much ko2 is needed to react with 75.0 l of carbon dioxide at - 25˚c and 215 kpa?

Is limestone a mixture or a pure substance

What is the number of electrons in the outermost energy level of an oxygen atom