Answer:
its caused by the convection of air masses with differences in densities mainly due to their differences in temperatures.
-Hops
Select one or more:
a. Chlorine forming a solid precipitate
b. Bubbles forming from hydrogen gas production
c. Solid zinc dissolving
d. Bubbles forming from chlorine gas production
B. stomach
C. small intestine
D. large intestine
Answer:
The correct answer is A).Liver
Explanation: The liver receives digested food components and stores the glucose to be released into the bloodstream for future use, NOT the small intestine or large intestine
I AM 100% CONFIDENT WITH THIS ANSWER TRUST ME!!!
I know it is NOT small intestine, so Large Intestine.
b. energy
c. heat transferred
d. force
(2) Ca and Br (4) Na and P
Elements in the same groups shows similar chemical and physical properties. The elements having similar chemical properties are Be and Mg.
A group in periodic table is a column with elements of similar physical and chemical properties.
Both beryllium (Be) and magnesium are in group two with two valence electrons and both are metals. They have similar chemical and physical properties.
Cl is in 17th group and Ar is a 18th group element. They do not show any similarity in chemical properties. One is halogen which is unstable and the second one is noble gas which is stable. Thus no similarity.
Ca is a 2nd group element and Br is 17th group and they are different in chemical properties. One is metal and the second one is halogen with higher electronegativity.
Similarly, Na is in first group and P is 15th group element in periodic table in periodic table and does not show chemical similarities.
Therefore, the elements showing similar chemical properties are Be, Mg thus, option 1 is correct.
To learn more about groups in periodic table, refer the link below:
#SPJ5
atoms are made of 3 types of sub atomic particles- protons, neutrons and electrons
from these 3 particles, electrons are responsible for participating in chemical bonds. therefore chemical properties of elements are based on the number of electrons present.
valence electrons are the number of electrons in the outermost energy shell that are involved in chemical bonds.
atoms with same number of valence electrons are grouped in to columns called groups.
therefore elements of the same group have same number of valence electrons, hence similar chemical properties.
from the options given
only Be and Mg belong to the same group they both belong to group 2 with 2 valence electrons
therefore Be and Mg have similar chemical properties
answer is
1) Be and Mg