An atom has 6 protons and 7 neutrons what is its number of electrons

What would happen to temperatures on Earth if the sun's heat were not distributed throughout the atmosphere

C+KNO3-> K2CO3+CO2+N2

What inference can be drawn from the graph? A + B C + D A The reaction between A and B is reactant favored. B. The amount of product is greater than the amount of reactant. C. The reaction uses all its reactants to form products.

How might an entire insect be preserved? Soft and hard tissues turn the insect into rock. Tree sap flows over the insect and hardens. Sediment accumulates over the insect and hardens. Carbon from the decaying insect leaves a print on a rock.

In the example in the lesson, 0.10 mole of sodium chloride or magnesium chloride or aluminum chloride was added to one liter of water. How many moles of each chloride are in one milliliter of the respective solutions? Hint: There are 0.

A covalent bond is best described as Question 1 options: the sharing of electrons between atoms. the transfer of electrons. a bond between a metal and a nonmetal. a bond between a metal and a polyatomic ion.

If you have 100 grams of H2, how many moles of H2 is that?

Consider four elements from Group 7A: fluorine in the second period, chlorine in the third period, bromine in the fourth period, and iodine in the fifth period. Which element has the largest first ionization energy?

What is the best reason for the difference in properties of LiCL and C6H14O

Determine the vapor pressure of a solution at 25°C that contains 76.6 g of glucose (C6H12O6) in 250.0 mL of water. The vapor pressure of pure water at 25°C is 23.8 torr. 70.8 torr7.29 torr72.9 torr22.9 torr23.1 torr