1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NeX [460]
2 years ago
14

HELPPPPPP PLEASEEEEEE

Chemistry
2 answers:
likoan [24]2 years ago
5 0
I think it is D if not i think C
attashe74 [19]2 years ago
4 0
D I believe. Correct me if I’m wrong.
You might be interested in
A student carefully drops a 9.0 g solid Zn pellet initially at 50.0°C into an insulated cup containing 30.0 g of water at 27.8°C
jekas [21]

Answer: choice B

Explanation: Heat flows from high to low. After you convert the Celsius into kelvin the Zn pellet has 323K and the water has 301K which results the transfer of the heat energy of the pallet to the water. ( you don’t have to convert, but it just make it easier) hope this helped you :)

3 0
3 years ago
Read 2 more answers
How many electrons are in an Fe2+ ion?<br> (1) 24 (3) 28<br> (2) 26 (4) 56
fomenos
The answer is (1) 24. There are 26 protons in nucleus of Fe atom. There is 26 electrons in Fe atom. Fe atom loses 2 electrons and change to Fe2+ ion. So there is 24 electrons in Fe2+ ion.
7 0
3 years ago
Read 2 more answers
What is an appropriate stepwise synthesis for the following synthesis that uses ethyl 3-methylbutanoate as the only source of ca
gayaneshka [121]

Explanation:

Using ethyl 3-methylbutanoate as your only source of carbon and using any other reagents necessary, propose a stepwise synthesis for the following conversion.

I need help drawing the product formed in step three.

Thanks!

6 0
3 years ago
If a runner completes a 10 kilometer race in 32.50 minutes, what is the 10.0 km pace in miles per hour? (1.609 km = 1 mile appro
Elina [12.6K]
If a runner completes a 10 km race in 32.5 minutes, his pace or speed can be calculated by the equation:

velocity = distance/time = 10km/32.5 mins = 0.3125 km/min

Convert this value to miles per hour using the conversion factors for minutes to hours and kilometers to miles as requested by the problem. This gives an answer of 11.47 miles per hour.

0.3125 km/min x 60 mins./ 1 hour x 1 mile / 1.609 km = 11.47 miles/hour
3 0
3 years ago
What state of matter in which particles are arranged in either a crystalline or an amorphous form
Ainat [17]
Idk to explain this but the answer is Solid...i think...
8 0
3 years ago
Other questions:
  • URGENT HELP! I dont understand anything of this and this is for tomorrow
    9·1 answer
  • What is the amount of mass in each given unit of volume?
    12·1 answer
  • Watson and Crick worked out the structure of DNA molecules in 1952. This discovery affected the legal system that is used in soc
    5·2 answers
  • What is the value of k for this aqueous reaction at 298 k?
    15·1 answer
  • Why do elements in the same group have a similar reactivity?
    9·1 answer
  • 25 grams of radon-222 remains after 15.28 days. How much radon was in the original sample? Write an equation for the decay of ra
    11·1 answer
  • What is the activation energy of this reaction?<br><br> 50 kJ<br> 100 kJ<br> 150 kJ<br> 200 kJ
    9·2 answers
  • Write the symbol for every chemical element that has atomic number greater than 8 and atomic mass less than 25.5 u.
    15·1 answer
  • What is the most metallic character with low ionization energies
    11·1 answer
  • the ground-state valence-shell configuration of a particular atom is 4d105s25p1. the element to which this atom belongs is a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!