Chemistry High School

A sample of metal is heated until it melts and begins to glow red. When it cools, it appears the same color as it did before it was heated. This is evidence that a chemical reaction occurred. is it true or false

Answers

Answer 1

Answer:

Explanation:

trueeeeeeeeeeeeeeeeeeeeeeeeeee

Related Questions

Change the following word equation into a formula equation AND balance it. Iron(III) carbonate --> Iron(III) oxide + Carbon dioxide

Will give brainliest blus 100 points

Answers

FeO + CO2 //written in the number form

Titanium metal is used as a structural material in many high-tech applications such as jet engines. What is the specific heat of titanium in J/g°C if it takes 99.7 J to raise the temperature of a 34.7 g block by 5.20°C?

Answers

Answer:

0.553 J/g°C

Explanation:

From the question given above, the following data were obtained:

Heat (Q) required = 99.7 J

Mass (M) = 34.7 g

Temperature change (ΔT) = 5.20 °C

Specific heat capacity (C) =?

Thus, we can obtain the specific heat capacity of titanium as follow:

Q = MCΔT

99.7 = 34.7 × C × 5.20

99.7 = 180.44 × C

Divide both side by 180.44

C = 99.7 / 180.44

C = 0.553 J/g°C

Therefore, the specific heat capacity of titanium is 0.553 J/g°C.

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