Objects 1 and 2 float as shown in the beaker below. Object 1 barely floats while 2 floats above surface. The density of the liquid in the beaker is 3.2 g/cc. Which of the densities given below are possible values for the densities of the two objects?
Answers
Object 1 is have more density than Object 2.
What is density ?
A material's density is a measure of how much stuff of a material has in a unit volume.
It is essentially a measured to see how tightly matter is crammed together or how a matter is compact.
For instance wood floats in water as it has lower density, while an anchor sinks as it has a higher density.
Helium balloons float in air as air has higher density than helium.
A specific gravity which is a related term to density otherwise called as relative density of a material.
It is the ratio of the density of a material to the density of water.
If the specific gravity of an object is less than one will float in water, where as specific gravity greater than one means it will sink. Hence object 1 has more density.
Learn more about density, here:
#SPJ2
Related Questions
What causes the colors observed during a flame test
Many scientists contributed to the current model of atoms. Which of the following offers a hypothesis on how people’s backgrounds and interests influence their work?A person with more activities and interest is more creative and intelligent. A person’s background and interests can give him a unique perspective in his research. If a person has an outside influence on his work, it is more credible to the general public. A person’s involvement in arts and literature will help them notice more details in their research.
which of the following substances diffuses faster in a beaker filled with water a drop of honey or drop of red ink
Question #21TrueFalse The general name for a substance added to a reaction that affects the rate but is not consumed in the reaction is called a complex a. True b. False
Answers
Molar mass KNO₃ = 101.1032 g/mol
mass = Molarity * molar mass * volume
mass = 0.800 * 101.1032 * 2.5
mass = 202.2064 g of KNO₃
To prepare 2.5 L (0800 M) of KNO3 solution, must weigh 202.2064 g of salt, dissolve in a Beker, transfer with the help of a funnel of transfer to a volumetric flask, complete with water up to the mark, capping the balloon and finally shake the solution to mix.
hope this helps!
B. The shorter the half-life, the more dangerous the radioisotope.
C. Half-life predicts which atoms in a radioactive sample will decay.
I think it`s A?
Answers
it is A Half-life measures the rate of decay of a radioisotope.
I took the test
Answers
Answer:
0.09 M/s is the initial rate when concentration of reactant A is 0.900 M.
Explanation:
A → B
1) Initial concentration of A = [A] =0.300 M
Rate constant of the reaction , k = ?
Rate equation for the second order kinetic is given as:
2) Rate of the reaction when initial concentration of A was 0.900M be R'.
[A] = 0.900M
6CO2 + 6H2O --> C6H12O6 +602
1. Identify evidence that a chemical reaction has occurred.
2. What element is the most abundant in this chemical reaction?
3. Identify the number of protons, neutrons, and electrons found in the most
abundant element.
4. Identify where we would find the protons, neutrons, and electrons in the
atom of this element.
5. Identify the group and period of the element on the Periodic Table.
swer
Answers
Answer:
1. The evidence that chemical reaction has occurred can be found in the change of the reagents present after the reaction, that is formation of glucose in the area where the reaction is taking place
2. The most abundant element of the chemical reaction is oxygen which has a total quantity of 18 atoms in the reaction
3. The oxygen atom has an atomic number of 8 and therefore contains 8 protons and 8 neutrons and (therefore) 8 electrons (to be neutral, electronically)
4. The protons and the neutrons of the atom, oxygen, are located in the nucleus, while the electron are found in the different orbitals surrounding the atom
5. The element, oxygen, symbol, O, belongs to the group 16 of period 2 in the periodic table
Explanation:
b. neutral.
c. weakly basic.
d. strongly basic.
Answers
A solution with a pH of 8.0 is weakly basic. Thus ,the correct option is C.
The pH scale gives the measure of the acidity or basicity of a solution. It ranges from 0 to 14, where a pH of 7 is considered neutral. Solutions which have a pH less than 7 are acidic, while solutions which have a pH greater than 7 are basic.
In this case, since the pH is 8.0, which is greater than 7, the solution is basic. However, it is important to note that the basicity of the solution is weak, as it is only slightly above neutral.
For example, think of a pH of 8.0 as being similar to water from a freshwater lake. It's not strongly basic like bleach or ammonia, but it still has a slightly basic nature compared to a neutral solution.
Thus, the correct option is C.
Learn more about pH,here:
#SPJ5
wastes and CO2 pass to cells, O2 pass to blood
CO2 and O2 pass to cells, wastes pass to blood
food and O2 pass to cells, CO2 and wastes pass to blood
Answers
The blood the reaches the cells from the capillaries food and O2 pass to cells, CO2 and wastes pass to blood. The rest of the choices do not answer the question above.
Answer:
food and O2 pass to cells, CO2 and wastes pass to blood.
Explanation: