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Grace [21]
3 years ago
12

Which of the following is NOT a reason why index fossils are chosen for determining ages of rocks? Select all that apply.

Chemistry
1 answer:
Anarel [89]3 years ago
5 0

Answer:

Lol

Explanation:

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Name or write the formula for the following polyatomic ions
Delvig [45]

Answer:

Name                                Formula

nitrite ion                        NO2−

permanganate ion                MnO4−

phosphate ion                 PO43−

hydrogen phosphate ion      HPO42−

Explanation:

5 0
3 years ago
1. What type of reaction is listed below? Prove that it is balanced by listing the number of elements on both side of the equati
ohaa [14]
Is there a mistake or am i doing something wrong  
6 0
3 years ago
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Where is glycogen stored? (choose all that apply)<br> muscles<br> bones<br> organs<br> skin
Yuliya22 [10]
Muscles bones no on organs and no on skin
6 0
3 years ago
"Given a block of frozen salt water, how could you separate
cricket20 [7]

Answer: You could put the frozen block of ice on the stove and let it melt and eventually boil out leaving the salt behind

Explanation:

4 0
2 years ago
Complete and balance the molecular equation, including the phases, for the reaction of aqueous potassium sulfate, k2so4, and aqu
Tju [1.3M]
The reaction between K₂SO₄(aq) and SrI₂(aq) produces KI(aq) and SrSO₄(s) as products. 

The reaction is 
K₂SO₄(aq) + SrI₂(aq) → KI(aq)+ SrSO₄(s) 

To balance the equation both side of the reaction should have same number of atoms in each element.

Right hand side of the reaction has 1 K, 1 I, 1 Sr, 1 S and 4 O atoms while 2 K, 2 I, 1 Sr,1 S and 4 O present in left hand side of the reaction. 
Hence, number of I atoms and number of K atoms are not balanced. 
To balance the K atoms we should add 2 before KI. Then I atoms will be 2 at the right hand side. 

Hence, the balanced reaction equation is
K₂SO₄(aq) + SrI₂(aq) → 2KI(aq)+ SrSO₄(s) 
3 0
3 years ago
Read 2 more answers
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