A portion of the periodic table of elements is reproduced here. Based on their relative positions, what conclusion can be drawn about these metallic elements?
20
25
K
Ca
Sc
Ti
V
Cr
Mn
Fe
anganese
Iron
Potassium
39.09
Calcium
40.00
Scandium
44.96
Titanium
47.87
Vanadium
50.94
Chromium
51.99
54.94
55.85
O Chromium is twice as reactive as vanadium.
O Potassium is much more reactive than iron.
O Calcium is much less reactive than scandium.
O All the elements have the same reactivity.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.

In in , is to a 28.4-g (1-oz)−23.0 °c to −1.0 °c?