Chemistry, 13.12.2019 20:31 blueyish6422
Combustion, or , is an example of one of the most familiar chemical changes. melting of ice, likewise, is one of the most common examples of physical changes. when a piece of coal burns, combines with the carbon in the coal. the products are carbon dioxide gas, water vapor, and a lot of ash. after careful measurements are taken, the of the reactants (coal and oxygen) is to the mass of the products (carbon dioxide, water vapor, and ash). during the reaction, the quantity of matter is unchanged. similarly, when 10 grams of ice , grams of water is obtained. mass is in this change as well.'
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Chemistry, 22.06.2019 05:00
As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary
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Chemistry, 22.06.2019 18:50
Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g. what is the percent by mass of water in the hydrate? %
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Chemistry, 22.06.2019 18:50
Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space
Answers: 3
Chemistry, 23.06.2019 00:30
An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8
Answers: 1
Combustion, or , is an example of one of the most familiar chemical changes. melting of ice, likewis...
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