Which atom has the largest number of neutrons? phosphorus-30 chlorine-37 potassium-39 argon-40 calcium-40?

Vertebrates that live in both land and the water, are exothermic, and have permeable skin to intake oxygen are called Question A Amphibians Question B Fish Question C Mollusks Question D Cnidarians

Elements in the same row across belong to the same

Use the drop-down menus to select the correct answers to complete the paragraph. The building blocks of matter are called. A substance made up of the same kind of atoms is called a (n). elements lose particles. This makes them.

What does it mean to say that the trials of an experiment are independent? a. One outcome is more likely to happen than the other outcomes. b. The outcome of one trial does not affect the probability of success on any other trial. c.

A chemical reaction requires 31.39 kj. how many kilocalories does this correspond to?

How many moles of liquid water must freeze to remove 100 kJ of heat? (ΔHf = - 334 J/ g.

What is the power of a kitchen blender if it can perform 3750 joules of work in 15 seconds?

A 75.00 g a sample of a substance is analyzed and found to consist of 32.73 g phosphorus and 42.7 g oxygen. calculate the percent composition of this substance.

Which one of the following melts the fastest: rectangular prism, cylinder, and rectangular trapezoidal trough?

A 1.8-mL volume of seawater contains about 4.0 * 10^-10 g of gold. The total volume of ocean water is about 1.5 * 10^21 L. Calculate the total worth of all the gold in the world's oceans if the price of gold is $19.