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klio [65]
3 years ago
15

( I need answer ASAP plz) Describe one similarity and one difference between lead-204 and lead-208.

Chemistry
1 answer:
zhuklara [117]3 years ago
4 0

Answer:

Their similarity is that they have the same number of protons. Their difference is that they have different number of neutrons.

Explanation:

They are isotopes of the same element.

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A solution is classified as a weak base. Which of these could be the pH of the solution?
Pepsi [2]

Explanation:

The pH of a weak base falls somewhere between 7 and 10.

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3 years ago
How to identify coplanar molecule?
lozanna [386]
See if the carbon atoms are SP2 or Sp they the coplanirty is more and if its Sp3 hybridization it cant be in coplanar as Sp3 is having Td shape where as sp2 and sp are not :)
7 0
3 years ago
Are these synthesis decomposition single replacement or double replacement?
marishachu [46]

Answer:

1. Synthesis

2. Decomposition

3. Single replacement

4. Synthesis

5. Decomposition

6. Synthesis

Explanation:

Kind of a hard picture to look at but let me define each chemical reaction:

Synthesis:

a + b ---> ab   In synthesis elements/compounds come together to form new                compounds

Decomposition:

ab ---> a + b   In decomposition a compound breaks down to form 2 elements/compounds

Single replacement:

a + bc ---> b + ac   In a single replacement one element/compound takes the place of another element/compound.

Double replacement

ab + cd ---> ad + bc In a double replacement 2 compounds exchange different elements/compounds.

Now, let's go through the assignment

1. P + O2 --> P4O10  This is a synthesis reaction because the two elements (P and O) came together to form one compound.

2. HgO ---> Hg + O2  This is a decomposition reaction because HgO broke into separate elements Hg and O.

3. Cl2 + NaBr ---> NaCl + Br2  This is a single replacement reaction because chlorine (Cl) replaced the spot of bromine (Br) to bond with sodium (Na).

4.  Mg + O2 ---> MgO  This is a synthesis reaction because two elements (Mg and O) came together to form one compound.

5. Al2O3 ---> Al + O2  This is a decomposition reactions because Al2O3 broke into separate elements Al and O.

6. H2 + N2 ---> NH3  This is a synthesis reaction because two elements (H and N) came together to form one compound.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

7 0
3 years ago
What role does heat have in plate tectonics?
kap26 [50]
The answer to your question is the option D, it moves crust plates around
5 0
3 years ago
Read 2 more answers
Necesito ayuda porfavor
AlexFokin [52]

Answer:

thank for the points ❤️

Explanation:

pa breinlyest po

8 0
3 years ago
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