Is this equation violating the law of conservation of mass? Explain why. 3 H2SO4 + 2 Fe(OH)3 -->Fe2(SO4)3 + 4 H2O

Group of answer choices
No; There is an equal amount of each type of element
Yes; There is an equal amount of each type of element
Yes; H is being destroyed when the products formed
No; H is being destroyed when the products formed

Which of the following statements is true about planck’s law

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial