Answer:
Magnesium oxide molecules
Explanation:
I belive it would be A? BUT IN NOT QUIE SURE? 0_0
<span>Yes, mass is conserved. When sodium hydroxide (clear solution) and copper sulfate (blue solution) are mixed, they form a copper hydroxide (a blue solid) and sodium sulfate (a clear solution).
This can be tested simply. First weigh the masses (10 g and 57 g, which totals 67 g)) of the two starting solutions prior to mixing. Then mix and allow the reaction to occur and weigh the mass of the mixture (10g + 57 g = 67 g). The two solutions should have the same mass and therefore demonstrate conservation of mass.</span>
<span>Prescription painkillers and alcohol
</span><span>Mixing drugs is always dangerous, and some combinations interact in ways that are particularly deadly. The number of people who died from mixing opioids and alcohol increased more than 300% from 1999 to 2010.</span>
Answer:
Explanation:
This question appear incomplete. However, chemical substances that conduct electricity when dissolved in water are elctrovalent/ionic compounds. These compounds are usually made up of elements in group 1 and group 7 (for example NaCl, NaI and LiF) but could also be made up of group 2, group 3 and group 6 [for example Mg(OH)₂ and Al(OH)₃]. Thus, they can be loosely said to be found in those groups in the S and P blocks of the periodic table.
NOTE:
Sodium (Na) is found in group 1 (S-block)
Lithium (Li) is found in group 1 (S-block)
Chlorine (Cl) is found in group 7 (P-block)
Iodine (I) is found in group 7 (P-block)
Flourine (F) is found in group 7 (P-block)
Magnesium (Mg) is found in group 2 (S-block)
Aluminium (Al) is found in group 3 (S-block)
Oxygen (O) is found in group 6 (P-block)
Hydrogen (H) is found in group 1 (S-block)