1 5.3.6 Quiz: Chemical Equations
Question 1 of 5
This chemical equation represents a chemical reaction.
CaSO3 + 2HNO3 - SO2 + Ca(NO3)2 + H20
Which chemical is a reactant in this reaction?
O A. H2O
O B. Caso
C. Ca(NO3)2
OD. SO
SUMIT

Please help and no links please just help I’ll give brainlist and HURRY!!

Other names: Sulfurous acid source: wikipedia, accessed: 2019-09-27, Calcium salt (1:1) source: wikipedia, accessed: 2019-09-27, E226 source: wikipedia, accessed: 2019-09-27

Appearance: White solid source: wikipedia, accessed: 2019-09-27

HNO3 – Nitric acid source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02

Other names: Aqua fortis source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02, Spirit of niter source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Eau forte source: wikipedia, accessed: 2019-09-27

Appearance: Colorless, yellow or red fuming liquid source: wikipedia, accessed: 2019-09-27; Colourless-to-yellow liquid with pungent odour source: ICSC, accessed: 2019-09-04; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.] source: NIOSH NPG, accessed: 2019-09-02

Products:

Ca(NO3)2

Names: Calcium nitrate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Kalksalpeter source: wikipedia, accessed: 2019-09-27, Nitrocalcite source: wikipedia, accessed: 2019-09-27

Appearance: Colorless solid | hygroscopic source: wikipedia, accessed: 2019-09-27; Colourless-to-white hygroscopic crystals source: ICSC, accessed: 2019-09-04

SO2 – Sulfur dioxide source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02

Other names: Sulfurous anhydride source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Sulphur dioxide source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-02, Sulfurous acid anhydride source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02

Appearance: Colorless gas source: wikipedia, accessed: 2019-09-28; Colourless gas or compressed liquefied gas with pungent odour source: ICSC, accessed: 2019-09-04; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.] source: NIOSH NPG, accessed: 2019-09-02

H2O – Water, oxidane source: wikipedia, accessed: 2019-09-27

Other names: Water (H2O) source: wikipedia, accessed: 2019-09-27, Hydrogen hydroxide (HH or HOH) source: wikipedia, accessed: 2019-09-27, Hydrogen oxide source: wikipedia, accessed: 2019-09-27

Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas source: wikipedia, accessed: 2019-09-27

Search by reactants (CaSO3, HNO3)

1 HNO3 + CaSO3 → H2O + SO2 + Ca(NO3)2

Search by products (Ca(NO3)2, SO2, H2O)

1 HNO3 + CaSO3 → H2O + SO2 + Ca(NO3)2

2 HNO3 + Ca(HSO3)2 → H2O + SO2 + Ca(NO3)2

Search by reactants (CaSO3, HNO3) and by products (Ca(NO3)2, SO2, H2O)

1 HNO3 + CaSO3 → H2O + SO2 + Ca(NO3)2

Explanation: