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Fiesta28 [93]
3 years ago
12

What is the mass measurement shown on the scales of this balance?

Chemistry
2 answers:
den301095 [7]3 years ago
8 0

70.923 (make sure to add picture)

otez555 [7]3 years ago
6 0
The answer is definitely not 70.923
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Attempt 3 An irregular lump of an unknown metal has a measured density of 5.50 g/mL. The metal is heated to a temperature of 153
shepuryov [24]

Answer:

i think it's 20.0mL

Explanation:

i learned this question in class

4 0
3 years ago
If 8.6 g of ch4 and 5.9 g of o2 react, what is the mass, in grams, of h2o that is produced?
Alenkasestr [34]
This may seem confusing because they give you two masses, but all you have to do is pick one to do the calculations. Personally, I would pick O2, since the molar mass is easier to calculate. The answer would be 3.3 g (rounded for sig figs). To get this, first take the 5.9 grams of O2 and convert it to moles by dividing by the molar mass of oxygen gas, which is 32. Then, multiply both by the mole-mole ratio, which is 2:2, or simply 1:1. After that, multiply that by 18g, which is the molar mass of water to get grams of water. 

REMEMBER, you have to write and balance the chemical equation before you can do any of that work. 
That happens to be CH4 + 2O2 => CO2 + 2H2O
7 0
3 years ago
How many grams are in 6.00 moles of NaCl?
Anastasy [175]

Is it 350.4, I assume?

5 0
3 years ago
Read 2 more answers
What is the ph of an aqueous solution with the hydronium ion concentration : [h3o+] = 3 x 10-5 m ?
BaLLatris [955]

The concentration of hydrogen can be shown as:

[H+ ] = 3 * 10-5 M

pH can be determined as:

pH = - log [H+ ]

= - log (3 * 10-5)

= 4.53

Thus the pH of solution is 4.53


8 0
3 years ago
What is the form of energy that an object has due to its temperature
SOVA2 [1]
There is thermal energy, but temperature is also a measure of the average kinetic energy, so either of those should be acceptable answers for the question.
4 0
3 years ago
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