Best science project for class7

Consider a mixture of two gases, A and B, confined in a closed vessel. A quantity of a third gas, C, is added to the same vessel at the same temperature.

The ph of a fruit juice is 3.43.4. find the hydronium ion concentration, left bracket upper h 3 upper o superscript plus right bracketh3o+ , of the juice.

Which of the following molecules has a bent shape

Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor: 4nh3 + 5o2 → 4no + 6h2o when 40.0 g nh3 and 50.0 g o2 are allowed to react, which is the limiting reagent?

A graduated cylinder is filled 241.5 ML with water and a piece of granite is placed in the cylinder displacing the level 247.6 ML what is the volume of the granite piece and cubic centimeters?

Diseases that are inherited are caused by

Why do many metal ions produce acidic solutions when dissolved in water?

Which property of potential energy distinguishes it from kinetic energy? a. mass b. position c. force d. work and power

A sample of pure copper has a mass of 5 grams calculate its volume

Which statement best explains why carbon is present in so many kinds of molecules? Question 1 options: It is abundant on earth, so it is readily available to bond with other elements. It does not form strong bonds, so it breaks apart.