Chemistry, 21.07.2019 18:30 MsDiaz9324
Hi!me with these 5 science questions! 1. which of the following statements is true? (select all the correct ones) the melting and freezing points of a substance are the same. the melting and boiling points of a substance are the same. the freezing and boiling points of a substance are the same. the heat of fusion and the heat of vaporization for a substance are the same. 2. select all that apply. (select all the correct ones) which of the following are characteristics of bases. contain hydroxide ion or produce it in a solution taste bitter feel slippery produce hydronium ion in a solution 3. the specific heat of ice is 0.5 calories/gram°c. 20 grams of ice will require calories to raise the temperature 1°c. 0.5 1.0 5.0 10 4. select all that apply. (select all the correct ones) which of the following are true about a block of ice at -10°c as you continue to apply heat. its temperature will rise continuously until it completely melts. its temperature will rise until reaching 0°c. its temperature will not rise above -10°c until it melts. its temperature will remain at 0°c until all the ice melts. 5. what part of the atom is involved in chemical reactions? protons neutrons nucleus electrons
Answers: 1
Chemistry, 21.06.2019 15:00
Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.
Answers: 2
Chemistry, 22.06.2019 10:40
Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3
Answers: 1
Chemistry, 23.06.2019 00:50
The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as
Answers: 3
Chemistry, 23.06.2019 01:00
Aman applies a force of 500n to push a truck 100m down the street how much does he do?
Answers: 1
Hi!me with these 5 science questions! 1. which of the following statements is true? (select all t...
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