Chemistry, 09.05.2021 14:00 richtercatrina16
Write ENERGY if the statement is true if it's false underline the word that makes the sentence false
1. Heat is measured in kilograms.
2. Temperature is the measure of how hot an object is.
3. Electricity produce coldness.
4. A material start to burn when it is heated to its kindling temperature.
5. When you put a cold spoon in a cup of hot water and kept it there
for a few minutes, the spoon soon feels cold.
6. A flammable substance has low kindling temperature.
7. Energy is the ability to do construction.
8. Electric stove, toasters and flat irons are examples of appliances
that have plastic that are resistant to electricity.
9. Some chemicals when mixed together produced heat.
10. Rubbing the hands together or any two objects together causes motion.
Answers: 1
Chemistry, 22.06.2019 07:30
What three things determine the shape and size of a puddle when water is poured out onto a surface
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Chemistry, 23.06.2019 03:00
Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative
Answers: 3
Chemistry, 23.06.2019 04:00
What changes occur in the reaction indicated by the equation? check all that apply. the hydrogen nucleus loses protons. the oxygen nucleus gains protons. the bond in h2 is broken, and new bonds are formed between hydrogen and oxygen atoms. each electron associated with a hydrogen atom is shared with an oxygen atom.
Answers: 3
Write ENERGY if the statement is true if it's false underline the word that makes the sentence false...
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