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What else can I help you with?
When 2 atoms chemically bond together do they change chemically physically or both?
It depends on the elements used. e.g. Burn solid, black carbon in oxygen and you get CO2. The C & O have both changed chemically as they share electrons. The solid carbon has now become a gas and is no longer black. That's a physical change, brought about chemically.
What is the substance that helps a reaction but isn't chemically changed?
These substances are called catalysts.
True or False When a chemical reaction occurs the physical and chemical properties of the reactants are the same as the properties of the products.?
unnecessary will change physically depending on what type of reaction, sometime chemically change . For example physically change are ice to water (solid to liquid) Chemically change are HCl + NaOH = NaCl + H2O ( the content changed )
What are two or substances that have been combined but not chemically changed?
maybe mike auto body form
Dissolving salt into water is physical or chemical change?
If you dissolve salt in water you have not changed the materials chemically.
How can matter be changed?
Physically or chemically.
Mixtures are made of substances that are .?
Chemically changed and can be physically separated into different species.
Can volume be changed physically and chemically?
in gases, change in volume is a physical change. however you can manipulate it physically or chemically (to a loose definition). Look at the ideal gas equation. PV=nRT Volume is dependent on pressure and temperature (physically changed) and on the number of moles (amount of gas) (chemical....ish)
Is lead biogradable?
lead is an element. it cant be biodegraded if its not biological. however it can be physically or chemically changed such as grinding, melting or giving it an acid bath
What is test variable?
The dependent variable , which is the one being measured.
What happens when sedimentary rocks are physically and chemically changed?
When sedimentary rocks are physically changed, their size and shape may be altered through processes like weathering and erosion. When they are chemically changed, minerals within the rocks may be dissolved or precipitated, leading to the formation of new minerals and the alteration of the rock's composition. Both physical and chemical changes can result in the transformation of sedimentary rocks into new rock types through processes like metamorphism.
What is paper changed into when has been changed chemically by fire?
Ash and smoke.
Where does rock come from tell the answer?
Rock is soil compacted and changed physically and chemically over thousands of years. The changes are due to temperature, pressure and various chemicals in the area that process is taking place.
What scientist that said that atoms can be changed chemically?
Dalton
Should matter can be changed physically?
no
What is in dye?
Dyes are colored unsaturated organic chemical compounds which contain chromophre groups and capable to giving color.The process by which a textile material is changed the material physically or chemically so that it looks colorful is called dyeing.
What is the class of the food that begins to get chemically changed in the mouth?
starches
