Which of the following exists in nature as a diatomic molecular element?  Group of answer choices Iron (Fe) Argon (Ar) Nitrogen (N) Xenon (Xe)

Provide the Formulas for the following compounds which are a mix of all categories hydrogen sulfide   barium hydroxide   nitrous acid   copper (II) bromide   carbon tetrachloride   nickel (II) perchlorate   lead (II) nitrate   ammonia (g)   chlorine (g)   chromium (III) sulfate   sulfur dioxide   Carbonic Acid Copper (I) carbonate Chloric acid Arsenic (III) oxide Silver dichromate Carbon disulfide Aluminum fluoride manganese (IV) chloride   ammonium bicarbonate   strontium phosphate

Which of the following statements is/are true ? (1) The formula of copper(Il) hydroxide is CUOH (2) The formula of aluminium perbromate is Al(BrO4)a (3) The formula of potassium hydrogen sulfite is KHSO, 0 3 only 1 and 2 only 2 and 3 only O 1 and 3 only O 1 only Clear my choice

For the following left-to-right list of compounds, choose the best left-to-right list of chemical names: CoCl2, MnPO4, KHCO3 Copper (II) hypochlorite, magnesium phosphide, potassium hydrogen carbide Cobalt (II) chloride, manganese (II) phosphate, potassium hydrogen carbonate Cobalt chloride, manganese phosphate, potassium carbonate Copper (II) chlorate, magnesium (1I) phosphate, potassium carbonate Question 12 For the following left-to-right description of isotopes, choose the best left-to-right list of isotope names: 16 neutrons and 238 and 146 neutrons.

Which element of the following is generally found in nature as monoatomic gas - NOT a diatomic gas?  Group of answer choices Argon Fluorine Hydrogen Chlorine Nitrogen

Enter the symbols for the ions of magnesium and iodine. Enter the ions formed by these elements and separate your answers with a comma (e.g., Sr2+,As3−Sr2+,As3−).

Predict the formula of a compound between magnesium and nitrogen? Use the periodic table to determine the charge. You do not have to subscribe the subscript.

In the table below, there are descriptions of an experiment on samples of three different chemical elements. Decide whether the element is a metal or nonmetal, if you can. If there is not enough information to decide, choose can't decide in the third column. element description metal or nonmetal? Element 1 is a hard silvery-gray solid. Wires are fastened to each side of a 2 cm slab of it, and an ordinary household 9 V battery is hooked up so that it can feed electricity through the slab to an LED. The LED glows brightly. metal 1 nonmetal (can't decide) Element 2 is a moderately soft silvery-gray solid. A 5 cm × 5 cm square of it, only 1 mm thick, is pressed into a dish-shaped mold under high pressure. When the press is lifted up, the sample has been crushed to a powder. metal 2 nonmetal (can't decide) metal Element 3 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square of it, only 1 mm thick, is twisted using two pairs of pliers, giving it a slight curve. 3 nonmetal (can't…

Which of the following would be considered as a rare earth? Group of answer choices cadmium cesium cerium curium Which of the following is the polyatomic ion called carbonate? Group of answer choices

Which element(s) would you expect to find in box #6? 1 919 2 0 0 0 Si 0 0 3 Si 0 4 5 60 Oxygen (O) Magnesium (Mg) Potassium (K) ☐ Sodium (Na) ☐ Calcium (Ca) ☐ none of the responses are correct