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Questions in chemistry

[Sagot para sa’yo] Title: Evaluation and Development of Bio detergent that reduce heat absorbtion Significance of the study: DENR (Department of Environment and Natural Resources) - They seek the conservation and development of our country’s conditions in terms of flora and fauna. The group has found this study significant to this department due to the eco-friendly targeted ingredients that we utilized in order to benefit the environment along the process of our people’s health. DOST (Department of Science and Technology) - They encourage and support many advancements both scientifically and technologically. Our study is significant to this department because its objective is to improve the quality of life of each individual while also maintaining sustainability. The technological advancements for our research being released into modern society can benefit the environment. It is also considered in the highlights in the goals of the Department of Science and Technology which is our community to be geared economically with benefits for the people through this project. "Question: What can i add and why? Also is this even correct?"

[Sagot para sa’yo] List down the different between the plant and animal cell​

[Sagot para sa’yo] al Chemistry 1 2. Which of the following has the least percentage of H? a. oil of vitriol - sulfuric acid (H2SO4) b. muriatic - hydrochloric acid (HCI) C. aqua fortis - nitric acid (HNO₂) d. vinegar - acetic acid (HC₂H₂O2) 3. Which of the following bases will yield highest percentage of -OH dissolved in water? a. slaked lime - Ca(OH)2 c. caustic soda - NaOH b. milk of magnesia - Mg(OH)2 d. caustic potash - KOH 4. Which of the following could be an empirical formula? a. CH10 b. N₂H6 C. CH₁₂O d. N2O5 5. By mass, this compound is made up of 30.4% N and 69.6% O. What is correct chemical formula of this compound? a. NO b. NO₂ C. NO3 d. N₂O 6. The atomic mass of C is 12 amu while H is 1 amu. The molar mass of C is 16 g/mol. What is the percentage composition of CH? a. 50% C; 50% H c. 75% C; 25% H b. 12% C; 16% H d. 90% C; 10% H _ 7. Phosporic acid is a clear and odorless liquid found in carbonated beverage What is the percentage composition by mass of H? a. 3.061% b. 31.61% c. 65.31% d. 6.20% _8. What is the molecular formula of a compound having an empirical formula C₂HO and a molecular mass of 90 g/mol? a. C₂HO b. CH₁₂ C. CH2O d. CH₁O _ 9. Which of the following is the empirical formula of alkanes with a molar mas of 58 g/mol? a. C₂H5 b. CH10 C. CH2.5 d. C₂H 20 10. Which of the following sets of empirical formula, molar mass, and molecula formula is correct? a. C,H,O,, 180 g/mol, C%H,,Os b. CH2O, 342 g/mol, C12H22O11 c. NH3, 17 g/mol, NH, d. C₂H, 56 g/mol, CH Conceptual Science and Beyond 73​

[Sagot para sa’yo] Write the electron configuration, and apply Pauli Exclusion Principle of the following elements below.1. Boron2. Calcium3. Magnesium​

[Sagot para sa’yo] hexane has a condensed structural formula ofch3 ch2 ch2 ch2 ch2 ch3 what formula would best represent a simplest ratio of elements in the compound​

[Sagot para sa’yo] what property is used as basis for the separation of copper subgroup(All) from tin subgroup?​

[Sagot para sa’yo] mix and match the following types 1.Argument/persuation text2.Literary nonfiction3.procedural text4.Expository text​

[Sagot para sa’yo] which part of the microscope should you hold with one hand while carrying it?​

[Sagot para sa’yo] GIVE THE IUPAC NAME OF THE FOLLOWING: ​

[Sagot para sa’yo] Based on the electronegativity difference between the given atoms, determine whether the bond that will form between the atoms is covalent or ionic? a. H and Cl b. Mg and O c. Be and ClD. Ca and Br​