Definition of science method

Compounds of Sc3 + are not colored, but those of Ti3 + and V3 + are. Why? 1. Sc3 + is a stable cation. 2. Ti3 + and V3 + are not stable cations. 3. Sc3 + has no electrons in d orbitals. 4. Ti3 + and V3 + have d electrons present. 5.

Can you give examples of carbon in our living environment?

How to determine is an alcohol has strong or weak intermolecular forces?

What is mass? A. the force on an object caused by gravity B. the amount of space that something takes up C. the amount of matter in an object D. how fast something is moving

Describe how and when disinfectant agents are used

How many joules of heat are needed to raise the temperature of 1.5 g of aluminum at 45°C, if the specific heat of aluminum is 0.75 J/g°C? Group of answer choices

Which is the best predictor of the radioactive nature of an isotope? (A) the proton-to-electron ratio (B) the neutron-to-proton ratio (C) the neutron-to-electron (D) ratio the electron-to-proton ratio

Which of the following statements correctly describes the relationship between fossils and rock strata? Fossils found in the rock strata are all the very small in size. Fossils are all found only in the top layers of the rock strata.

The trend for ionization energy is a general increase from left to right across a period. However, magnesium (Mg) is found to have a higher first ionization energy value than aluminum (Al).

A man is about to receive a bone marrow transplant. He is taking pills to suppress his immune system so that: A. his immune system does not attack the transplanted marrow. B. his immune system can recover after surgery. C.