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AlexFokin [52]
2 years ago
14

Why do atmoic numbers increase from left to right across any given row of the periodic table

Chemistry
1 answer:
stira [4]2 years ago
4 0
They have increased number of protons which is the atomic number. 
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Can anyone pls help? (fill in the blank)
masya89 [10]

Answer:

reactivity:very reactive,less reactive

density:float in water,sink in water

melting and boiling point:low,high

colour of salts: colourless,often coloured

3 0
2 years ago
I don’t get this pls help
igor_vitrenko [27]

Answer:

light

According to Newtonian gravity, light is not affected by gravity, as light is massless. Einstein's law E = mc 2, immediately suggests that light is affected by gravity. This is indeed the case and has experimentally be observed via gravitational lensing and other effects.

Explanation:

I thought I'd just answer here as well so I can get a couple extra points :)

I'm super glad I helped <3

5 0
2 years ago
An example of competition between members of two different species is
iren [92.7K]

Answer:

B) purple loosestrife plants growing in the same wet areas as cattail plants

Explanation:

Competition between members of two species means that two <em>different </em>species are "fighting for" or desire the same resource. This resource could be shelter, food, territory, etc.

An organism cannot compete if it is already dead, so that eliminates answer choices A and C. Answer choice D is wrong because these are two organisms of the <em>same </em>species.

Answer choice B is correct because there are two different species competing for one area of land.

8 0
2 years ago
9.87X1024 atoms (NH4)3 PO4= how many moles
mote1985 [20]

Answer:

16.4moles

Explanation:

From Avogadro's hypothesis, 1mole of any substance contains 6.02x10^23 atoms.

This clearly indicates that 1mole of (NH4)3PO4 also contains 6.02x10^23 atoms.

Now, if 1mole of (NH4)3PO4 contains 6.02x10^23 atoms,

Then Xmol of (NH4)3PO4 will contain 9.87X10^24 atoms i.e

Xmol of (NH4)3PO4 = 9.87X10^24/6.02x10^23 = 16.4moles

4 0
2 years ago
What is the boiling point and freezing point carbon?
AleksandrR [38]
Melting point is 3500° c and boiling point is 4827 °c !!!
3 0
3 years ago
Read 2 more answers
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