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yaroslaw [1]
3 years ago
8

Help balance (will mark brainliest)

Chemistry
2 answers:
Vesnalui [34]3 years ago
5 0
I don’t understand the question maybe be more specific?
Kay [80]3 years ago
3 0
Is it supposed to be a chemical equation? If so type it out and I can help
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Group 1A element sodium combines with Group 7A element chlorine to form sodium chloride or table salt. Based on this information
EastWind [94]
A.<span>Na > Cl
is the right answer.</span>
8 0
3 years ago
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How many titanium atoms does it contain? titanium has a density of 4.50g/cm3, a pure titanium cube has an edge length of 2.82 in
yKpoI14uk [10]
2.82 inches is are equivalent to 7.16 cm.
The volume of the cube ;
 7.16 × 7.16 ×  7.16 = 367.06 cm³
The density of titanium is 4.5 g/cm³
Therefore; mass will be 4.5 × 367.06 = 1651.77 g
1 mole of titanium has 47.867 g
thus, 1651.77 g is equivalent to  1651.77/ 47.867 = 34.507 moles
According to the Avagadro's constant 1 mole = 6.022 × 10∧23 atoms 
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5 0
3 years ago
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there are 2 protons that are 5 cm apart. each proton has the same Elementary charge. what is the charge of each Proton​
tresset_1 [31]

Answer:

what are you looking for so that people can help you with it

8 0
3 years ago
A potassium bromide solution is 8.34% potassium bromide by mass and its density is 1.03 g/ml. what mass of potassium bromide is
jenyasd209 [6]

Answer:-  3.84 grams

Solution:-  Volume of the sample is 44.8 mL and the density is 1.03 gram per mL.

From the density and volume we calculate the mass as:

mass = volume*density

44.8mL(\frac{1.03g}{mL})

= 46.1 g

From given info, potassium bromide solution is 8.34% potassium bromide by mass. It means if we have 100 grams of the solution then 8.34 grams of potassium bromide is present in. We need to calculate how many grams of potassium bromide are present in 46.1 grams of the solution.

The calculations could easily be done using dimensional analysis as:

46.1gSolution(\frac{8.34gKBr}{100gSolution})

= 3.84 g KBr

Hence, 3.84 grams of KBr are present in 44.8 mL of the solution.

8 0
3 years ago
How many kilojoules of heat are produced when 34.0 g of Fe2O3 reacts with an excess of
kupik [55]

Answer: this is your answer 26.3 kJ/1 mol Fe2O3 (s) – 3.40 mol Fe2O3

Explanation:

hope this helps ;) - Mal

4 0
3 years ago
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