The correct answer is (2) density.
An intensive property of a substance is a property that will never change no matter what. Density is a constant and thus an intensive property.
Hope this helps~
I think it is the third statement
‘A unit is made up of two or more atoms’
Answer:
2NaOH + 2Al +2H2O = 2NaAlO2 +3H
Explanation:
Aluminum is an amphoteric element it reacts with both bases and acids to form a salt and hydrogen gas.The reaction is highly exothermic.
Answer:
C
Explanation:
Single replacement reactions is when only one element gets replaced / changed. This usually looks like this: A + BC = B + AC or A + BC = C + AB
Therefore, the number of reactants must be equal to the number of products, since no actual combinations / break ups are occurring.
Answers A and D are eliminated right away since the number of products don't equal the number of reactants.
Answer B is wrong because it does not show simply one element being replaced, instead, two compounds are being formed. It doesn't look like the example given.
Only answer C shows that one element is replaced:
The iodine is replaced with bromine to form NaBr + I2
Answer:
matter
your breath fog steam oxygen helium piece of paper
Explanation:
matter,matter is made up of atoms ,atoms is in practically everything