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kondor19780726 [428]
2 years ago
14

Which method is most likely used to identify what happened before the start of the paleozoic era?

Chemistry
2 answers:
vodka [1.7K]2 years ago
6 0
Scientist examine fossil evidence during the pre-time yes researching about the things at the pre-Cambrian time might help them to identify what would’ve happened before Paleozoic era
earnstyle [38]2 years ago
5 0

Answer:C

Explanation:

on edge

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Predict the products and write the balanced chemical equation for this reaction. Include the physical state of the product(s).
sukhopar [10]

Answer:

Al(C2H3O2)3 (aq) + 3AgNO3 (aq) ------>Al(NO3)3(aq) + 3Ag(C2H3O2)(s)

Explanation:

A chemical reaction refers to an interaction between two or more chemical species that leads to the formation of other new chemical species.

There are many types of chemical reactions. The type shown above is called a double replacement reaction. In this type of reaction, ions exchange partners in the product.

A chemical reaction is said to be balanced when the number of atoms of each element on the left hand and right hand sides of the reaction equation are exactly the same.

5 0
2 years ago
A 42.0g sample of compound containing only C and H was analyzed. The results showed that the sample contained 36.0g of C and 6.0
user100 [1]

Answer:

What is the empirical formula of the compound?

Explanation:

When the relative masses of elements in a hydrocarbon are given, it is possible to use this information to obtain the empirical formula by dividing the given masses of each element by the relative atomic masses of the element. The lowest ratio is now used to divide through to obtain the empirical formula of the compound.

The empirical formula only shows that ratio of atoms of each element present in the compound. From the information provided, the empirical formula of the compound is CH2. Hence the answer.

5 0
3 years ago
Which polyatomic ion is found in the compound represented by the formula NaHCO3? (1) acetate (3) hydrogen sulfate (2) hydrogen c
Schach [20]
Well....the answer is HCO3....but i don't know what it is said in worded form.

Looking at the names....it is probably Hydrogen Carbonate
5 0
3 years ago
The diagram below shows the layers in Earth's interior.
Arada [10]

Answer:

layer B is liquid because of the inner members and layer A is solid because of the outer members

5 0
1 year ago
The combined forces acting on an object make up the ___ force
sp2606 [1]

Answer:

net force

Explanation:

The net force acting on an object is the combination of all of the individual forces acting on it. ... If two forces act on an object in the same direction, the net force is the sum of the two forces.

3 0
2 years ago
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