2h2+o2-> 2h2o
what changes occur in the reaction indicated by the equation? check all that...
2h2+o2-> 2h2o
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: 2
Chemistry, 22.06.2019 02:00
If you add 10ml of hot water to 10ml of cold water and the change in tempature 8Β°c calculate how much energy is gained by the cold water
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Chemistry, 23.06.2019 00:00
How many atoms or molecules are there in a mole of a substance?
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Chemistry, 23.06.2019 00:30
Many bird species build nests in which they raise their offspring. one of these species is known as the magnolia warbler. breeding pairs of magnolia warblers build nests out of pieces of grass and twigs. the female warbler will then lay her eggs in the nest and sit on the eggs for a few weeks until they hatch. after the offspring have hatched, the female will continue to sit on the newborn chicks to keep them warm. both the male and the female bring food for the offspring to eat until the young are mature enough to find food on their own. which of these most likely describes why birds such as the magnolia warbler build nests in which to raise their offspring? a. nest building decreases the amount of energy used by the parent birds to raise their offspring to adulthood. b. nest building increases the probability that the offspring will survive and eventually produce offspring of their own. c. nest building decreases the amount of food that the offspring require the adult birds to provide. d. nest building increases the probability of the offspring being located by airborne predators.
Answers: 1
Chemistry, 23.06.2019 01:30
Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100Β°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.
Answers: 1
Mathematics, 26.04.2021 07:20
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