A pure substance is:___.
a. composed of two or more different types of atoms or molecules combined in variable proportions.
b. composed of two or more regions with different compositions.
c. composed of only one type of atom or molecule.
d. composed of two or more different types of atoms or molecules that has constant composition.
e. none of the above.
Answers: 3
Another question on Chemistry
Chemistry, 21.06.2019 20:50
Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread
Answers: 2
Chemistry, 22.06.2019 05:00
In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?
Answers: 1
Chemistry, 22.06.2019 16:30
How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4
Answers: 3
You know the right answer?
A pure substance is:___.
a. composed of two or more different types of atoms or molecules combined...
Questions
Mathematics, 26.12.2019 09:31
Social Studies, 26.12.2019 09:31
English, 26.12.2019 09:31
Business, 26.12.2019 09:31
Mathematics, 26.12.2019 09:31
Business, 26.12.2019 09:31
English, 26.12.2019 09:31
Mathematics, 26.12.2019 09:31
Mathematics, 26.12.2019 09:31
History, 26.12.2019 09:31
Chemistry, 26.12.2019 09:31
History, 26.12.2019 09:31
Mathematics, 26.12.2019 09:31
History, 26.12.2019 09:31
Mathematics, 26.12.2019 09:31
