Answer:
Kenma I'll help you! it's B.
Explanation:
I hope I helped you Kenma
The identity of the substance is Iron.
<h3>Properties of Iron</h3><h3>Chemical properties</h3>
- The element iron has the atomic number 26 and the symbol Fe
- Electronic configuration of Fe is [AR] 3d6 4s2
- The atomic weight of Iron is 55.847
- The element iron belong to the group VIII of the periodic table
- It is the fourth most prevalent element in the crust of the world
- It is a highly reactive element as it gets rusted readily in the moisture of air
<h3>Physical properties</h3>
- It is a heavy metal in the first transition series
- The color of iron is silvery grey
- High malleability and ductility
- It has a strong electrical conductivity.
Learn more about periodic table on
brainly.com/question/2140373
#SPJ1
Answer:
Volume of liquid = 28.7 mL
Explanation:
Given data;
Density of solid = 3.57 g/ml
Mass of solid = 19.5 g
Volume of water = 23.2 mL
Total volume when solid is dropped into graduated cylinder= ?
Solution:
Density = mass/ volume
v = m/d
v = 19.5 g/ 3.57 g/ml
v = 5.5 mL
Volume of liquid = volume of water + volume of solid
Volume of liquid = 23.2 mL + 5.5 mL
Volume of liquid = 28.7 mL
In an acid-base titration, the neutralization reaction between the acid and base can be measured with either a color indicator or a pH meter. In this experiment, aphenolphthalein<span> color indicator will be </span>used<span>.
</span>Phenolphthalein<span> is colorless in acidic solutions and pink in basic solutions.
Hope this helped
: )</span>
