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sattari [20]
3 years ago
13

The periodic table

Chemistry
2 answers:
astra-53 [7]3 years ago
5 0

it's Lithium or Li

..............................

SVETLANKA909090 [29]3 years ago
3 0

Answer:

El litio encabeza la familia de los metales alcalinos en la tabla periódica. En la naturaleza se encuentra como una mezcla de los isótopos Li6 y Li7. Es el metal sólido más ligero, es blando, de bajo punto de fusión y reactivo.

Explanation:

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15. If the moon is 384,400km away. Does it take more than a second for light to travel from the Earth to the moon?​
marishachu [46]

Answer:

Yes

Explanation:

The speed of light is about 300 000 km per second, so light takes about 1.28 seconds to travel from the Moon to the Earth.

3 0
1 year ago
Which of these statements about enzymes is true?
allochka39001 [22]
Enzymes are organic catalysts
and catalysts generally increase rate of reaction by lowering activation energy
C is the answer
7 0
3 years ago
If you have a density of 100 kg/L and a mass of 1000 g what is the volume (please explain)
olchik [2.2K]

Answer:  Volume =  0.01L

Explanation:

The density of a substance is given by; Density =  Mass / Volume.

In this question, Mass = 1000g, Volume = ? and Density = 100 Kg/L

For the units to be uniform, we convert 1000g to Kg = 1Kg

Therefore, Volume = Mass / Density =  1Kg / 100Kg/L = 0.01L

                     

6 0
3 years ago
Soil particles tend to be __________ charged and attract __________ charged ions.
aliina [53]

Answer:it’s abc it’s just science you know

Explanation:

8 0
3 years ago
180m/173 Tl -> 180/173 Tl + ? Express your answer as a nuclear equation ​
Law Incorporation [45]

Answer: The nuclear equation is ^{180}_{173}Tl \rightarrow ^{180}_{173}Tl + ^{0}_{0}\gamma.

Explanation:

A nuclear reaction in which a heavy particle splits into another particle along with release of energy is called a nuclear fission reaction.

For example, ^{180}_{173}Tl \rightarrow ^{180}_{173}Tl + ^{0}_{0}\gamma

Here, energy is radiated in the form of gamma radiation.

Thus, we can conclude that the nuclear equation is ^{180}_{173}Tl \rightarrow ^{180}_{173}Tl + ^{0}_{0}\gamma.

4 0
3 years ago
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