An element has 13 protons in its nucleus. What is its atomic number?

Which statement describes science? 1 It lacks a process. 2 It is not updated often. 3 It is supported bye evidence

Which of these elements has four total electrons in its outer p orbitals? A) barium (Ba) B) nitrogen (N) C) silicon (Si) D) sulphur (S)

How does the tilt of earth affect the climate?

What happens when one freezes salt water? A - The solvent particles make it easier for the water molecules to form crystals. B - The solute particles make it harder for the water molecules to form crystals.

Which of the following is true about a spontaneous process? it releases energy, it does not require any external action to begi, it will occur quickly, it will continue on its own once begun, it is never endothermic

How can there be snow near a giraffe's home This is actually science so yeah

If a sealed syringe that contains some gas in heated in which direction will the syringe plunger move

Use the drop‑down menus to label the statements as either true of false. Dichloromethane is flammable. true false Methanol is flammable. Concentrated sulfuric acid is corrosive. 10% sodium carbonate solution must be used in the fume hood.

What is the process all rocks are continuously in during which that can change into other types of rocks

Collagen is made of fibers and is found in tendons and cartilage. Collagen contributes to meat toughness and is, therefore, an example of which type of protein?