activation energy
The answer is penicillin
hydrochloric acid
T cells recognize these proteins and produce certain substances (cytokines) that destroy the infected cells.
Flames aren't always orange, their colour is depenant on what material is being burned. A substance with contains a high percentage of copper will burn with a green flame and if is contains strontium the flame would be red. Different substances produce different flame colours and this property can be used to identify substances. Orange flames indicate the presence of Sodium.
The minimum amount of unstable atoms needed to produce an uncontrolled chain reaction is called critical mass.
Two.
17.2m
A redundant member refers to a component or part in a system that is unnecessary or not essential for its overall function or performance. Redundant members are typically included for backup or additional support, providing extra capacity or redundancy in the event of failure.
Different substances produce different amounts of friction. But generally, rough surfaces produce the maximum friction.
The answer would be 0.50 or .5
A chemical reaction
In order to produce foam, several things are required. First, the surface area needs to be increased. Soap bubbles are a type of foam, for instance. The surface area is increased by applying force. Next, certain reactive chemicals are required. In the case of soap bubbles, soap is required. There are many different types of foam, such as styrofoam, all requiring different levels of force and substances. Sea foam is another type of foam.
Substances used in making nylon fibers come from petroleum based chemicals or petrochemicals. Different chemical compounds are used to produce different fibers.
true
These substances are called products in English.
You are wrong! The digestive system produce enzymes and other substances!!!
Acids are substances which produce hydrogen ionsin solution.Bases are substances which produce hydroxide ionsin solution.