0
What else can I help you with?
Which of the following is true about homogeneous mixtures they are solutions they consist of two or more phases they have compositions that never vary or they are always liquids?
Homogeneous mixtures are solutions because they have a uniform composition throughout. They do not consist of two or more phases, unlike heterogeneous mixtures. Their compositions can vary within a specific range, depending on the substances involved.
At a pH of 7 what is true a The hydroxide ion concentration equals the hydronium ion concentration b The concentration of the acid equal the concentration of the conjugate base?
At a pH of 7, both statements are true. The hydroxide ion concentration equals the hydronium ion concentration in a neutral solution with pH 7. Additionally, in a neutral solution, the concentration of the acid equals the concentration of the conjugate base since the solution has an equal balance of H+ and OH- ions.
Classify the following statements regarding the law of conservation of mass as true or false It was developed from past observations?
True. The law of conservation of mass was developed based on past observations, experiments, and evidence that showed that mass is neither created nor destroyed in a chemical reaction.
Is it true the lower the pH the higher the hydrogen ion concentration?
Yes, that is true. A lower pH indicates a higher concentration of hydrogen ions in a solution, while a higher pH indicates a lower concentration of hydrogen ions. pH is a measure of the acidity or basicity of a solution on a scale from 0 to 14.
What is the processes of diffusion and osmosis?
Osmosis is the movement of water from a less concentrated solution to a more concentrated solution through a partially permeable membrane. For osmosis to happen you need: * two solutions with different concentrations * a partially permeable membrane to separate them Diffusion occurs when particles spread. They move from a region where they are in high concentration to a region where they are in low concentration. Diffusion happens when the particles are free to move. This is true in gases and for particles dissolved in solutions. Particles diffuse down a concentration gradient, from an area of high concentration to an area of low concentration. For more info: http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/cells/cells3.shtml http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/cells/cells4.shtml
Which of the following is true regarding King Kong?
all
Which of the following is true regarding water while hiking?
all
Which of the following is true regarding a restrictive adjectival clause?
It will follow a proper noun
Which of the following is true regarding current scientific thought?
RNA originated before DNA
Is unsaturated solutions will not dissolve more solute true or false?
False. Unsaturated solutions have not reached their maximum solute concentration and can dissolve more solute.
Which of the following statements is true regarding the Union of South Africa?
Blacks and whites did not have equal rights!!! :(
Which of the following is most true regarding non-competition clauses in contracts?
It will follow a proper noun :)
Which of the following is TRUE regarding acquisition and extinction?
These terms apply to classical conditioning but not to operant conditioning
Which of the following is true regarding the aerobic combustion of glucose to yield water and carbon dioxide?
All of these
Which of the following statements is true regarding the determinants of exercise adherence?
number of rows and column should be same
During the 1950s and 1960s, which of the following is true regarding the U.S. economy?
The Gross National Product increased.
In the control of respiration, which of the following is NOT TRUE?
Respiration responds to smaller changes in the concentration of oxygen than carbon dioxide
