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vivado [14]
3 years ago
11

Number 5 please this is due in 3 hours I’m desperate :((((

Chemistry
2 answers:
Zielflug [23.3K]3 years ago
5 0
The developing zygote is protected would be the correct answer
not 100% sure
ss7ja [257]3 years ago
3 0
#4 )

The option that is a disadvantage of external fertilization is the option that states <span>gametes may get washed away. 


#5 )

The option that is an advantage of internal fertilization is the option that states the developing zygote is protected.</span>
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John Dalton believed which of the following about atoms?
Snowcat [4.5K]

Answer : Option B) All atoms of a single substance are identical.


Explanation : The scientist John Dalton proposed the atomic theory which had the postulates as follows.


i) All matter/substances consists of indivisible particles known as atoms.

ii) Atoms of the same element/substance are similar in mass,shape and size, but differ from the atoms of other elements.

iii) Atoms obey the law of conservation of energy which says atoms cannot be created or destroyed.

iv) Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form any compound atoms.

v) Atoms of same element can combine in ratio with more than one to form two or more compounds.

vi) The atom is considered to be the smallest unit of matter that can take part in a chemical reaction

8 0
3 years ago
What types of material might have survived 85 years of weather? answer?
Mashutka [201]
Hey You!

Metal and Minerals may have survived 85 years of weather.
5 0
3 years ago
How do you know when a phase change happens?
VladimirAG [237]

Answer:

phase for what?

Explanation:

4 0
3 years ago
Equation Given : Al^(3+) + Na3PO4 ==&gt; 3Na^+ + AlPO4
Helga [31]

1 mols of Aluminium ion forms 1 mol aluminium phosphate

Molar mass of AlPO_4

  • 27+31+16(4)
  • 58+48
  • 106u

Moles of AlPO_4

  • 61µg/106
  • 0.000061/106
  • 5.75×10^{-7}
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Moles of Al3+=57.5µmol

3 0
2 years ago
How many Oxygen atoms in: 5H2SO3
astra-53 [7]

Answer:

20

Explanation: I think

5 0
3 years ago
Read 2 more answers
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