What does group mean

In one kind of nuclear reaction, two nuclei fuse, or join together, to form a larger nucleus. This kind of reaction happens only at very high pressures. Explain why such high pressures are necessary to cause these reactions to occur.

Which two particles each have a mass approximately equal to one atomic mass unit

Which of the following lists the types of single substances? (Select only one answer) Group of answer choices elements and mixtures suspensions, solutions, and colloids elements, compounds, and mixtures elements and compounds

Which of the following are not at equilibrium? Check all that apply. Check all that apply. The concentrations of reactants and the products are not constant. The rate of the forward reaction does not change.

The mass of a single lead atom is 3.44*10-22 grams. How many lead atoms would there be in 85.9 milligrams of lead?

The result of one experiment carried out by a research team would be considered valid if

Is burning a physical or chemical property?

How many kilograms of the rock must be processed to obtain 2.0 kg of Pb?

The mass % of C in methane CH4 is a) 74.87 b) 7.743 c) 133.6 d) 25.13 €) 92.26 159

Which number gives the atomic mass of the element?