subject
Chemistry, 30.10.2020 07:10 demahjanaytinsley

1. How do scientists know how hot the core is?
A. Thermometers
Seismic waves
C. Oil wells
D. Measure the electromagnetic
spectrum

ansver
Answers: 3

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 01:30, aliciaa101
2. how is heavy water different from normal water
Answers: 1
image
Chemistry, 22.06.2019 09:00, hellodarkness14
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 3
image
Chemistry, 22.06.2019 17:00, calmicaela12s
Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
Answers: 1
image
Chemistry, 22.06.2019 20:00, jalenevoyles
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
You know the right answer?
1. How do scientists know how hot the core is?
A. Thermometers
Seismic waves
C. O...

Questions in other subjects:

Konu
Mathematics, 19.10.2019 22:50