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BaLLatris [955]
3 years ago
8

Why is carbon used to date things that were once living?

Chemistry
1 answer:
Natali [406]3 years ago
8 0

Answer:

a - carbon is not toxic to living things

Explanation:

The reason carbon dating works is that the fresh carbon-14 gets mixed in with the rest of the carbon in the atmosphere and, since it's chemically identical to regular carbon, gets worked into whatever is presently absorbing atmospheric carbon

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Why would heating up the human body be a bad choice for causing a chemical reaction?
Furkat [3]

Answer:

Explained below

Explanation:

The human body has a normal core temperature of around 37°C to 38°C.

Now, if it is heated up to say 39° to 40°C, fatigue will start to set in and the brain begins to tell the muscles to slow down.

If it's now heated to higher temperatures above above 41°C, the body will begin to experience heat exhaustion and therefore will start to shut down.

Due to this process, the body can't even sweat at that stage because blood flow to the skin will stops thereby making the body feel cold and clammy. Thus, chemical processes/reaction in the body will begin to be affected and the cells inside the body will start to deteriorate and thus there is now a huge risk of having multiple organ failure.

5 0
3 years ago
When determining the melting point of a substance, should one use a large or a small sample in the capillary? Should the sample
REY [17]

The glass capillary having one end closed and one open end is generally used for the determination of melting point of the sample. From the open end, the sample is put into the capillary, the sample must be firmly packed as the melting point is an intrinsic property that means it is independent of sample size. So, in order to determine the melting point of the sample small sample in the capillary is sufficient to measure the melting point of the sample. To obtain the more consistent value of melting point one must pack the sample firmly in the capillary.

Hence, when determining the melting point of a substance, one should use a small sample in the capillary and the sample should be firmly packed.

4 0
3 years ago
Initial temperature of metal= 100 C°
Vilka [71]

Water is 22.4

Final for both us 27.1

Explanation:

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3 0
3 years ago
When the Moon blocks out the Sun in a solar eclipse, we can still see the
Mashutka [201]
We can still see the shadow of the Earth and/or Earth's surface.
4 0
3 years ago
Which fact was most likely discovered between the time of Mendeleev’s table and the time of Moseley’s table that helped Moseley
I am Lyosha [343]

Answer:

The number of protons in an atom is different than the atom’s total mass.  

Explanation:

Mendeleev knew only that, with some anomalies, the properties of elements varied periodically with their atomic masses.

Moseley's X-ray experiments enabled him to remove these anomalies and to show that the properties of elements varied with their atomic numbers.  

Chadwick later discovered that the mass differences were caused by the presence of neutrons.

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