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Aleksandr-060686 [28]
2 years ago
5

HELP PLEASE ASAP WILL MARK BRAINLIEST

Chemistry
2 answers:
erma4kov [3.2K]2 years ago
8 0
A) 420 I believe

if you use the formula Q=mcΔT you can find your answer
GuDViN [60]2 years ago
6 0

Answer:

b i think

Explanation: sry if wrong

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the atomic number of barium is 56. What do you know about the subatomic particles in an atom of this element ?
Deffense [45]
You definitely know that is has 56 protons and 56 electrons because atomic number is proton number and protons=electrons
7 0
4 years ago
ILL GIVE YOU BRAINLIEST!!!!Which of the following is an example of a description of climate? *
Murrr4er [49]

Answer:

The relative humidity in Raleigh, NC

You can search it up online. Search up what is climate change and it will give you "the weather conditions prevailing in an area in general or over a long period." (On bing)

Explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

6 0
3 years ago
Why does sodium have a lower melting point then magnesium
Lady bird [3.3K]

Answer:

Number of delocalized electrons

Explanation:

Magnesium has more delocalized electrons compared to sodium and this accounts for the higher melting point.

  • When magnesium atoms comes together to form a metallic bonds, they have more network of delocalized electrons.
  • There is more pull for the localized electrons due to the nuclear charge on the nucleus.
  • This strong intermolecular metallic bond increases the melting point of magnesium.
3 0
3 years ago
3 points
NNADVOKAT [17]

Answer:

1

Explanation:

cause

4 0
3 years ago
What method to we use for separating mixtures?​
yaroslaw [1]

Answer:

sedimentation

Explanation:

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5 0
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