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Gala2k [10]
3 years ago
8

What new evidence led scientists to change their minds about the geocentric model?

Chemistry
1 answer:
IRISSAK [1]3 years ago
3 0

Galileo disproved the Ptolemaic theory, sanctioned for centuries by the Church, which held the Earth to be the central and principal object in the universe, about which all celestial objects orbited.

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How many solutions does the system have? zero one two three four infinitely many.
Ber [7]

Answer:

the system has infinitely many solutions.

Explanation:

The system is 2x + y = 1 and 4x + 2y = 2. Solutions to a system are the intersection points. Since these two lines are the same line they intersect everywhere. There are infinitely many solutions.

hope this helps

plz mark brainliest

4 0
2 years ago
If the mole fraction of nitric acid (HNO3) in an aqueous solution is 0.275, what is the percent by mass of HNO3?
jeka94
Molar mass of    N    = 14 g/molMolar mass of   O2    = 32 g/molAdding both masses = 46 g/molActual molar mass/ Empirical molar mass = 138.02 / 46 = 3Now multiplying this co effecient with empirical fomula NO2 = 3(NO2)                                                                                             = N3O6So according to above explanation,D) N3O6, is the correct answer.

8 0
2 years ago
Explain the steps for naming an oxy-acid (refernce pg. 252)
nata0808 [166]

Answer:

The first element is always named first, using entire element name.

Second element is named using its root and adding the suffix -ide.

Prefixes are used to indicate the number of atoms of each element that are present in the compound.

Explanation:

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2 years ago
According to South Erie, all sales carry out the function needed to sustain life. That means all sales must contain one accordin
soldier1979 [14.2K]

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2 years ago
An example of an impermeable material is<br> a. clay.<br> b. sand.<br> c. gravel.<br> d. water.
const2013 [10]
A is the answer to the question you asked.
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