Some plant seeds are adapted to sprout with a limited amount of water. For what environmental change are these seeds most likely adapted? earthquake tsunami drought global warming

Discuss the environmental impacts or gas fracking.

How many moles of HBr are present in 250 ml of a 0.15 M HBr solution?

Is humidity related to air pressure

Magnesium, calcium, and strontium are examples of

How many moles of aluminum ions are present in 0.34 moles of Al2 (SO4) 3? Express the number of moles to two significant figures.

How many elements are in one molecule of Methane? How many elements are in one molecule of Ammonia? How many elements are in one molecule of Vinyl Alcohol? How many elements are in one molecule of Ethylene?

A banana split contains 1.12 million calories. What is the energy value in kilojoules? a. 1.12 kJ b. 4.686 x 10^3 kJ c. 4686 kJ d. 2.68 x 10^5 kJ e. 268 kJ

2 grams of a substance was dissolved in 75.0 g of water resulting in a temperature decrease from 23.1 ⁰C to 18.7 ⁰C. The specific heat of the solution is 4.18 J/g·⁰C. Calculate the amount of heat associated with the water.

Why do you think the soccer ball fell more slowly than the golf ball

Which of the following is an example of chemistry research in the main area of energy?. a. producing bioplastics. b. specific reactions between prescription drugs and chemicals in cells. c. developing rechargeable batteries. d.