A
This is the utilization of living systems and biological process to develop products or food
Biotechnology
Father of Modern Chemistry
Antoine-Laurent Lavoisier
A negative exponent reflects the movement of the decimal point to the ________
right
Zeros that follow nonzero digits and are on the right of the decimal point are _______________.
significant figits/significant figures
Whose idea was "All matter is WATER"
Thales of Miletus
Chemistry deals with the study of matter, its _____________, properties and structure, and the changes it undergoes.
composition
How many significant figures do we have in 0.014500
5 significant figures
He described an element as a substance that cannot be broken down into simpler substances
Robert Boyle
This agency is mandated to ensure the safety, efficacy or quality of health products which include food, drugs, cosmetics, devices, biologicals, vaccines, or consumer products that may have an effect on health which require regulations.
Food and Drug Administration
(2.90 x 105 g) ÷ (1.5 x 102 mL)
1.9 x103 g/mL
In multiplication involving scientific notation, the coefficients are multiply and the exponents are ___________.
added
These are number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value.
Significant figures / significant digits
These are plant-derived, nonessential nutrients that aid in disease prevention and give therapeutic effects.
Phytochemicals
This step in scientific method is the process of validating or negating the hypothesis
Experimentation
Four groups of rats are first massed and then fed identical diets except for the amount of vitamin A they receive. Each group gets a different amount. After 3 weeks on the diet, the rats’ masses are measured again to see if there has been a decrease. Give the independent variable.
Amount of Vitamin A
The amount of gravity's pull on a given amount of matter
Weight
Analytical chemistry is concerned with finding what is present (______________) and how much of a component is contained (_______________) in a given example.
qualitative analysis;
quantitative analysis
A block of aluminun occupies a volume of 15.0 mL and a mass of 40.5 g. What is its density?
2.70 g/mL
In multiplying or dividing measured quantities, the final answer should have the same number of ___________________based on the given.
least significant digits
2.890 g ÷ 1.10 mL
2.63 g/mL
(3.2x102 m) + (1.50 x 103 m)
1.8 x103 m
Satoru did a series of investigations to see if the height of the ball's bounce was dependent on the size of the ball. Give the null hypothesis of this research problem.
There is no significant relationship between the size of the ball and the height of the ball's bounce.
(6.7 x104 km) – (3.05 x102 km)
6.7 x 104 km
Convert 31400000 to scientific notation. Subtract the answer to 2.861 x 106
2.85 x 107
(1.95 x10-5 m)(1.223 x103 m) ÷ (3.251 x103) m
7.34 x10-6 m