Becca was trying to figure out which detergent got the most field stains out of a baseball uniform. Which part of her experiment would be the independent variable?

How difficult is Biochemistry?

How many atoms of oxygen are represented in 3Fe (NO3) 2?

Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (1) Electronegativity increases, and first ionization energy decreases.

5.00 g of hydrogen gas and 50.0g of oxygen gas are introduced into an otherwise empty 9.00L steel cylinder, and the hydrogen is ignitted by an electric spark.

how many chromosomes are in sperm or egg cell if when they come together to form fertilized zygote there are 46 chromosomes?

Rocks are grouped according to

300 grams of a compound which contains only carbon, hydrogen and oxygen is analyzed and found to contain the exact same percentage of carbon as it has oxygen. The percentage of hydrogen is known to be 5.98823%.

As a barometer rises, what kind of weather can be expected

Why is a mole of oxygen and a mole of oxygen gas a different molar mass?

A large cylindrical tank contains 0.750 m3 of nitrogen gas at 27°C and 7.50 * 103 Pa (absolute pressure). The tank has a tight-fitting piston that allows the volume to be changed. What will be the pressure if the volume is decreased to 0.