In which substance does sulfur have an oxidation state of + 4?

1. S

2. H2S

3. SO2

4. SO3

Determine the number of atoms present in 2 moles of argon gas

80. Calculate AHıxn for the reaction: CaO (s) + CO2 (g) → CaCO3 ().

How can a scientist make sure that the results of an experiment are not a mistake?

At which electrade in a voltaic cell does redaction always occar?

Which of the following statements explain what is currently known about Earth's oceans? Select all that apply. The ocean is rich in natural resources. Less is known of Earth's oceans than outer space.

Consider a three sequentially stepped process named as Process A, Process B and Process C. Input comes into Process A. Output form A goes into Process B. Output from B goes into Process C. Output of C is the final output.

What are elements and how do they differ?

Write the structire of the salt that forms when diethylamine is mixed with hydrochloric acis

The heat of combustion of propane, C3H8, is 2220 kJ/mol. The specific heat of copper is 0.385 J/g°C. How many grams of propane must be burned to raise the temperature of a 10.0 kg block of copper from 25.0°C to 65.

Which is an example of Temporal Isolation? A. Flowers that bloom in different months. B. Birds that have different mating calls C. Fruits flies that mate in different locations. D. Squirrels that have different fur colors