How many protons does one atom of sulfur have?(1 point)
Responses
8
8
16
16
32
32
32.066
One atom of sulfur has 16 protons.
What is the chemical symbol for lithium?
(1 point)
Responses
L
L
LI (big L, big I)
LI (big L, big I)
lithium
lithium
Li (big L, little i)
The chemical symbol for lithium is Li.
Dalton and Macie were conducting an experiment at school. During the experiment, they added a little dry yeast to some hydrogen peroxide. The combination began to bubble rapidly, and the container felt warm. They captured some of the gas that was formed, and they discovered that the gas they captured had a new property. When they put a lit match into the gas, it made the lit match glow much brighter!(2 points)
was this a physical Change or chemical change?
The described scenario represents a chemical change. The bubbling, warmth, and the formation of a new gas with the property of making a lit match glow brighter indicate the occurrence of a chemical reaction. A physical change typically involves a change in state, size, or shape of a substance without altering its chemical composition.
Dalton and Macie were conducting an experiment at school. During the experiment, they added a little dry yeast to some hydrogen peroxide. The combination began to bubble rapidly, and the container felt warm. They captured some of the gas that was formed, and they discovered that the gas they captured had a new property. When they put a lit match into the gas, it made the lit match glow much brighter!(2 points) Was a new gas formed?
Yes, a new gas was formed during the experiment. The bubbling observed indicates the release of gas and the presence of a chemical reaction. The gas that was captured and tested with a lit match also displayed a new property, making the match glow much brighter. This further confirms the formation of a different gas during the reaction.
Dalton and Macie were conducting an experiment at school. During the experiment, they added a little dry yeast to some hydrogen peroxide. The combination began to bubble rapidly, and the container felt warm. They captured some of the gas that was formed, and they discovered that the gas they captured had a new property. When they put a lit match into the gas, it made the lit match glow much brighter!(2 points) Did one of the substances formed had a new property?
