Science

Blue litmus paper will turn what color when it comes into contact with acid?

Formula for Photosynthesis?

What is meant by a physical property of a substance and what is meant by a chemical property of a substance?

During a lab, Bob had a Erlenmeyer Flask with a mass of 150 grams from the contents, at the end, it was only now 100 grams

On the same lab, You had a 500 grams of content inside your Erlenmeyer Flask, and at the end, it still was 500 grams because of a balloon. How?

Cobalt Chloride turns what color when it comes into contact with water

Red litmus paper will turn what color when it comes into contact with a base

The greater the acidity of a solution, the closer the pH is to (A) and the greater the alkalinity of a solution the closer the pH is to (B), and water is about 7.

A. Qualitative, Physical
B. Quantitative, Physical
C. Qualitative, Chemical
D. Quantitative, Chemical

1. The substance was red in colour
2. Length of substance is one metre
3. The pH paper turned green when submerged in a liquid
4. Limewater turned cloudy when it came into contact with Carbon Dioxide.

What is a metalloid

A student had a jar with 50 grams of snow in it. When he came back the next day there was 25 grams of water and no snow. He claims that matter was lost, what would you say?

Is Hydrogen in it's own group

Elements on the (left or right) are considered more metals and Elements on the (left or right) are considered non-metals.

Physical Properties can be divided into 2 categories what are they? Are they Qualitative and Quantitative or something else?