Compared to the ph of saliva, the ph of stomach juices is

a. the same.

b. higher.

c. lower.

d. unpredictable.

Identify 5 things that would happen if there is not electricity.

What is a key difference between chemical and nuclear reactions?

use the molar volume of a gas at STP to calculate the density of nitrogen gas at STP. How do I use the molar volume?

Which is true about the dissolving process in water?

What is the mass of 5.80 x 10^23 atoms of silver (Ag) ?

12) _Na + _H2O → ___ NaOH + __H2

Match the mineral categories to their best descriptions. a. sulfide mineralsminerals that have a sulfur atom surrounded by four oxygen atomsb. sulfate mineralstable salt is an example of this type of mineralc.

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?