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frez [133]
3 years ago
8

(4x972)+(76.4x29.3)-(12x7) solve using significant figures please ASAP

Chemistry
2 answers:
lidiya [134]3 years ago
8 0
I’m just getting a stronger and I can’t wait for my life to be able I do not a good and my husband will have the money to get a job in this life I can’t wait for my son for my family so I’m just not sure and he
mezya [45]3 years ago
7 0
There are 5 rules to significant figures

All non zero numbers are significant

Zeros between 2 non zeros digits are significant

Leading zeros are not significant

Trailing zeros to the right of the decimal are significant

Trailing zeros in a whole number with the decimal shown are significant


The answer is
6042.52
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Metallic ions are best described as: anions giving up electrons and attracting each other anions together in a sea of electrons
Alex73 [517]

Answer: cations together in a sea of electrons

Explanation:

Metallic bonding is the type of chemical bonding occurs between the atoms of a metals. In this type of bonding arises due to electrostatic interaction between the electron cloud of de-localized electrons with positively charges metal ions called as cations.

These de-localized electrons are the valence electrons of metal atoms which are shared between them.

In ionic bonding , the cations are attracted to anions where cations are formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

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3 years ago
Which is a substance that is made up of only one type of atom?
Zolol [24]
I believe that's an isotope, but I may be wrong.
4 0
3 years ago
Can someone please explain how to do number 11?
BaLLatris [955]

Answer:

HBr + Mg(OH)2 —> MgBr2 + H2O.

To balance the above, we must do a head count of the individual atoms present to ensure they balance on both sides of the equation. To get the balance equation, add 2 in front of HBr and 2 in front of H2O as shown below:

2HBr + Mg(OH)2 —> MgBr2 + 2H2O

We can see clearly that the numbers of the individual atoms on the left side is the same on the right side

8 0
4 years ago
Help meeeee brainliest for whoever helps
neonofarm [45]

Answer:

no

Explanation:

8 0
3 years ago
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Hydrazine is a great chemical propellant because it creates a lot of gaseous products that need to expand and escape from their
Burka [1]

We have to look for safe and non - hazardous characterstics when trying to find new propellants.

<h3>What are propellants ?</h3>

Propellants are any gas, liquid, or solid the expansion of which can be used to impart motion to another substance or object.

The Desirable properties for propellant combinations are ;

  • low molecular mass and high temperature of reaction products (for high exhaust velocity),
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Learn more about propellants here ;

brainly.com/question/1395855

#SPJ1

4 0
2 years ago
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