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bulgar [2K]
2 years ago
13

Teeth and long bones are good indicators of age in children; ribs and joints are better for adults.

Chemistry
2 answers:
attashe74 [19]2 years ago
7 0

Answer:

True

Explanation:

Luba_88 [7]2 years ago
4 0

The answer is True not False

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The reaction type represented by AB ---> A + B is known as
nordsb [41]

Answer:

A. synthesis

Explanation:

8 0
3 years ago
A 2.87 g sample of carbon reacts with hydrogen to form 3.41 g of car fuel. What is the empirical formula for the car fuel?
olga_2 [115]

CH₇ is the empirical formula of the car fuel.

Explanation:

To find the empirical formula we use the following algorithm.

First divide each mass the the molar weight of each element:

for carbon 2.87 / 12 = 0.239

for hydrogen 3.41 / 2 = 1.705

And now divide each quantity by the lowest number which is 0.239:

for carbon 0.239 / 0.239 = 1

for hydrogen 1.705 / 0.239 = 7.13 ≈ 7

The empirical formula of the car fuel is CH₇.

I have to tell you that in reality this formula is wrong because is not possible to exist. However the algorithm for finding the empirical formula is right, the problem may reside in the amounts of carbon and hydrogen given.

Learn more about:

empirical formula

brainly.com/question/5297213

#learnwithBrainly

5 0
3 years ago
Which of the following is the best evidence for a chemical reaction?
alisha [4.7K]
C. Formation of a new substance
5 0
3 years ago
What is the chemical test for chlorine?
Ann [662]

Answer:

hope it helps you a little

3 0
3 years ago
Activation energy in reaction is used to:
vekshin1

Answer:

D — All of them

Explanation:

The activation energy in a reaction is the minimum amount of energy required for a chemical reaction to take place. Since all the options are processes in a chemical reaction, D should be the answer.

4 0
2 years ago
Read 2 more answers
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