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RoseWind [281]
3 years ago
8

GIVING BRAINLY, 5 STARS, FOLLOW AND HEARTSas majority of substances heat up, they:​

Chemistry
1 answer:
melamori03 [73]3 years ago
3 0

Answer:

Expand

Explanation:

When you heat up a substance it expands

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Group 1A element sodium combines with Group 7A element chlorine to form sodium chloride or table salt. Based on this information
Ymorist [56]
The answer is Na < Cl

Chlorine is more electronegative than sodium because this follows the trend of the periodic table. The trend states that an element's electronegativity increases from left to right of a period and bottom to up of a group. Since sodium and chlorine are from the same period, and chlorine is at the right of sodium, chlorine is more electronegative. 
8 0
4 years ago
Which of the following is a transuranium element?<br> Ra<br> Am<br> Tc<br> Pa
lyudmila [28]
Am - it has an atomic number of 95 which is greater than 92.

Transuranium elements are elements with atomic levels greater than 92
3 0
3 years ago
If an object what is 30 kg of mass is moving at 10 m/s to the right how much kinetic energy does it have
ki77a [65]

Explanation:

m=30

v=10

K.E=1/2mv^2

=1/2×30×10^2

=1/2×30×100

=1500 joule

6 0
3 years ago
A certain atom has an atomic number of four. how many protons does it have? 8 2 0 4 description
Contact [7]
4 protons the number of proton has the same number of electron [which is the same as atomic number]
4 0
3 years ago
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what are we/what has someone did to prevent/lessen the negative side effects of aluminium extraction?
kogti [31]

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Adaptation of wheat to allow aluminum to be carried out is due to the fact that aluminum releases organic compounds that in turn combine with harmful aluminum cations. It is believed that sorghum has the same endurance. The first genes found to withstand aluminum were found in wheat. Aluminum sulphide bearing has been found to be governed by an individual gene, such as in wheat. This is not the case in all plants.

7 0
3 years ago
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