The acetone test has given us new evidence.

The suspects did not use gold paint, so Hypothesis 1 is not correct.

Hypothesis 1: The suspects painted the silver-looking coins with gold paint. The gold paint would add matter to the silver-looking coins. The zinc metal could help the gold paint look real.

Hypothesis 2: The suspects heated the silver-looking coins. This mixes the zinc and copper metals. Mixing does not add matter. This mixture makes the coins look gold.

Explain how the new evidence showed that Hypothesis 1 is not correct.

From the given statement, we can infer that the evidence was obtained through the acetone test. The acetone test is used to determine whether a surface has been painted with a lacquer or other coating by analyzing whether the coating dissolves in acetone or not. Therefore, the acetone test was probably performed on the suspected coins to find out if they had a coating of gold paint on them.

If Hypothesis 1 were true, then the acetone test would have shown that the suspected coins had a coating of gold paint, which would have dissolved in the acetone. However, since the statement clearly states that the suspects did not use gold paint, it can be concluded that the acetone test did not show the presence of gold paint on the coins. Therefore, this new evidence contradicts Hypothesis 1, and it can be concluded that Hypothesis 1 is not correct.

To explain how the new evidence showed that Hypothesis 1 is not correct, we need to understand the acetone test and its significance in relation to the two hypotheses.

The acetone test is a method used to distinguish between gold paint and real gold. Acetone, a common solvent, can dissolve many types of paint, including gold paint. However, real gold does not react or dissolve when exposed to acetone.

In Hypothesis 1, it is proposed that the suspects painted the silver-looking coins with gold paint, which could potentially deceive investigators. The hypothesis suggests that the gold paint would add matter to the silver-looking coins, making them appear to be genuine gold. Additionally, it proposes that the presence of zinc metal in the coins would help make the gold paint look more convincing.

However, when the acetone test was conducted on the coins, the results indicated that the suspected gold paint dissolved, confirming that it was indeed paint and not real gold. This evidence directly contradicts Hypothesis 1, as the gold paint did not withstand the acetone test, proving that the coins were not painted with actual gold.

Therefore, based on the results of the acetone test, it can be concluded that Hypothesis 1 is not correct because the evidence showed that the suspects did not use gold paint on the silver-looking coins.

The new evidence obtained from the acetone test indicates that Hypothesis 1, which suggests that the suspects painted the silver-looking coins with gold paint, is not correct. The acetone test is conducted to determine whether a substance is paint or not. Acetone is a solvent that can dissolve paint, and if the silver-looking coins were painted with gold paint, the acetone would have removed the paint, revealing the underlying metal.

Since the acetone test did not remove any paint from the silver-looking coins, it suggests that there is no gold paint present on the coins. This contradicts Hypothesis 1, which assumes the presence of gold paint as the explanation for the coins' gold appearance. Therefore, based on the new evidence from the acetone test, it can be concluded that Hypothesis 1 is incorrect.