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polet [3.4K]
4 years ago
10

One of your classmates is having trouble understanding ions. He explains the formation of a cation like this:

Chemistry
1 answer:
Anettt [7]4 years ago
3 0
Electrons carry a negative charge adding 2 electrons together would give a positive charge because 2 negatives make a positive.
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What is not equal to o.536 kilometers
mafiozo [28]
53.6 hectometer
536 meters
536,00 centimeters
3 0
3 years ago
1. True or false ? Balanced forces cause a change in motion. How do you know this ?
MariettaO [177]

Answer:

1. False

Balanced forces would mean all forces acting upon an object would be equal. So there is no movement.

2. True

Unbalanced forces would mean there is a force acting upon a side of tge object, causing it to move in a direction.

4 0
3 years ago
C. A 75 lb (34 kg) boy falls out of a tree from a height of 10 ft (3 m). (3 points)
KatRina [158]

(I) kinetic energy of the boy when he hits the ground =potential energy

I. e ½mv²=mgh where g is 10ms-²

m=34kg, g=10ms² , h=3m

=34×10×3

=1020j

(i i) v²=u²+2gh

v²=0²+2×10×3

= 60

v=sqrt of 60

7 0
2 years ago
Write the empirical formulas of the following compounds: (a) Al2Br6, (b) Na2S2O4, (c) N2O5, (d) K2Cr2O7, (e)H2C2O4.
babunello [35]

Answer:1. AlBr_3

2. NaSO_2

3.N_2O_5

4. K_2Cr_2O_7

5. HCO_2

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

1. Al_2Br_6 has empirical formula of AlBr_3

2. Na_2S_2O_4 has empirical formula of NaSO_2

3.N_2O_5 has empirical formula of N_2O_5  

4. K_2Cr_2O_7 has empirical formula of K_2Cr_2O_7

5. H_2C_2O_4 has empirical formula of HCO_2  

4 0
3 years ago
A sample of carbon-12 has a mass of 6.00 g. How many atoms of carbon-12 are in the sample?
Serjik [45]
<em>mC: 12g/mol</em>

12g ------- 6,02·10²³ a.
6g ---------  X
X = (6×<span>6,02·10²³)/12
</span><u>X = 3,01·10²³ atoms</u>

---->>> A :)

4 0
3 years ago
Read 2 more answers
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