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Citrus2011 [14]
3 years ago
13

What does an object's apparent size depend on?

Chemistry
1 answer:
ipn [44]3 years ago
3 0

Answer:

D. its actual size and distance from an observer

Explanation:

haha aint i the brainliest

jst kidding

hope it helped u

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True or false transuranium elements are synthetic elements with atomic #’s of 93 or higher.
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It's absolutely TRUE...........
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3 years ago
Specific heat capacity is the quantity of heat required to raise the temperature of one mole of a substance by one degree Celsiu
sattari [20]

Answer

False

Explanation

Specific heat is the amount of heat per unit mass required to rise the temperature of a substance by one degree celsius.It is expressed in units of thermal energy per degree temperature.A calorimeter is used when measuring the heat capacity of a reaction.Molar heat capacity is amount of heat required to raise the temperature of a substance by one degree Celsius.

4 0
3 years ago
Read 2 more answers
How many grams of H, are needed to react with 2.75 g of N,?
Elena-2011 [213]

Answer:

0.6 grams of hydrogen are needed to react with 2.75 g of nitrogen.

Explanation:

When hydrogen and nitrogen react they form ammonia.

Chemical equation:

N₂ + 3H₂ → 2NH₃

Given mass of nitrogen = 2.75 g

Number of moles of nitrogen:

Number of moles = mass/ molar mass

Number of moles = 2.75 g / 28 g/mol

Number of moles = 0.098 mol

Now we will compare the moles of nitrogen with hydrogen from balance chemical equation:

                   N₂             :          H₂

                    1               :           3

                   0.098       :        3×0.098 = 0.3 mol

Mass of hydrogen:

Mass = number of moles × molar mass

Mass = 0.3 mol × 2 g/mol

Mass = 0.6 g

6 0
3 years ago
Three quantum numbers for an electron in a hydrogen atom in a certain state are
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It is option A 4s cause n=4, l=1 this is 4s orbital
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What two properties of gas make it unique to liquids and solids
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1. Gas particles can move past each other
2. Gas particles flow easier
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