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aev [14]
3 years ago
13

Help i give more point this time​

Chemistry
1 answer:
dmitriy555 [2]3 years ago
3 0

Answer:

It's a type of chemical bond that emerges because of electrostatic force between electrons and positive metal charges.

Explanation:

I don't know if this is what you are looking for but i don't mind if you copy it.

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I need help with number 8 please help ASAP.
Rzqust [24]

Answer:

33.33% = 33%

Explanation:

MgCO3(s) + 2HCl (aq) --> MgCl2(aq) + H20(l) + CO2(g)

1 mole of MCO3 will produce → 1 mole of CO2

We need to get the number of mole of CO2:

and when we have 0.22 g of CO2, so number of mole = mass / molar mass

Moles = 0.22 g / 44 g/mol = 0.005 mole

Moles of Mg = moles of CO2 = 0.005 mole

Mass of Mg = moles * molar mass

= 0.005 * 84 /mol = 0.42 g

Percent of MgCO3 by mass of Mg = 0.42 g / 1.26 * 100

=33.33 %

8 0
3 years ago
A teacher uses a bow and arrow to demonstrate accuracy and precision. She shoots several arrows, aiming at the exact center of t
RUDIKE [14]

Answer:Doing your momveryhardrn

Explanation:

She is visciously suckingmynuts

5 0
3 years ago
An element whose third shell contains two <br> p<br> electrons
pentagon [3]
Maybe sodium? becasue its an element and I would like some points... sorryy:((((
3 0
3 years ago
Read 2 more answers
Calculate the density of a 0.845 m H2SO4 solution that has a molarity of 0.821 M.
Levart [38]
Woo rich toy slime bsksns
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3 years ago
1.) A gas occupies 3.5L at 2.5 atm pressure. What is the volume at 10 atm pressure?
romanna [79]

Answer:

.875

Explanation:

Use Boyle's Law and rearrange formula.

- Hope this helps! Please let me know if you need further explanation.

5 0
3 years ago
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