A teacher dropped one light ball and one heavy ball simultaneously from the roof of a school building. Both balls struck the ground at the same time. The students correctly concluded from this experiment that falling objects

What is the product of the chemical reaction ... Au+O2

A gas mixture contains oxygen, nitrogen, and helium. The partial pressures are: Po, = 20.0 kPa, PN, = 46.7 kPa and Phe = 26.7 kPa. What is the total pressure of the gas? A. 46.7 kPa B. 6.70 kPa C. 2.49 x 104 kPa D. 93.4 kPa

If a iron bar cost $0.015cm^3 and it's 8.0cm wide and 0.40cm high and 310 cm long how much will it cost to make the iron bar

Write the molecular formula for a compound with the possible elements c, h, n and o that exhibits a molecular ion at m + = 100.090.

Which of the following is a postulate of the kinetic molecular theory? A) when gas particles hit something, they gain energy. these collisions are elastic.

What is similar to iodine by chemical characteristics

The arrangement of electrons in the orbitals of an atom

A sample of C3H8 has 4.64 * 1024 H atoms. How many carbon atoms does the sample contain?

What is the value of 200c on a Kelvin scale

Calculate the moles of new H₂ O₂ using the balanced formula below and the average moles of KMnO₄ from calculation #2. The average moles of KMnO₄ is 0.90mol. 2KMnO₄ + 5H₂O₂ + 3H₂SO₄ → K₂SO₄ + 2MnSO₄ + 8H₂O + 5O₂ Edit: I got 2.