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microwaves
infrared
ultraviolet
X-rays
gamma-rays
Related Questions
4. How many moles are in 54.0 grams of Silver?54.0 g Ag x (108mol ag /1 g ag ) = 5,832 ag moles Ag(Use the gray boxes to insert the values for the conversion factors.)5. What is the mass of 6.3 moles of Sulfur?6.3 mol S x ( / ) = g S6. How many atoms are in 6.0 moles of Argon?6.0 mol Ar x ( / ) = atoms of Ar7. How many moles of Kr are in 112 g of Krypton?112 g Kr x ( / ) = moles of Kr8. How many moles are in 1.93 x1024 formula units of KF, potassium fluoride?1.93 x1024 formula units x ( / ) = mol KF(The next two problems need 2 step conversions - so there are two conversion factors (fractions) for the problem - remember the mole map - covert to moles first, then to the desired unit.)9. How many atoms are in 86.2 g of Si (silicon)?86.2 g Si x ( / ) x ( / ) = atoms of silicon10. What is the mass in grams of 4.8 x 1024 atoms of Magnesium?4.8 x 1024 atoms of Mg x ( / ) x ( / ) = g Mg
Which compound is a member of the same homologous series as C3H8?(1) CH4 (3) C5H8(2) C4H8 (4) C6H10
Match each of the following fat-soluble vitamins with the unit used to express the amount required in the diet. A: microgram. B: miligram
Which of these statements about mixtures is true?Mixtures are made up of elements bonded together. Elements and compounds are types of mixtures. Pure substances are made up of mixtures combined in specific ratios. Mixtures are classified based on the distribution of particles in them.
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After the first half-life, 1/2 is unchanged. After the 2nd one, 1/4 remains. After the 4th one, 1/16 remains. So you have 4 half-lives in 48 hours, the half-life is thus 12 hours.
(2) the total number of protons in the atom, only
(3) the total number of protons and the total number of neutrons in the atom
(4) the total number of protons and the total number of electrons in the atom
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Answer;
(4) the total number of protons and the total number of electrons in the atom
Explanation;
-Atomic number is the number of protons in the nucleus of an atom. An atom is made up of energy shells and the central nucleus. The energy shells contains electrons that are negatively charged while the nucleus contains protons (positively charged) and neutrons (neutral).
-In a neutral atom, the number of protons and electrons are equal, thus the atomic number would indicate the number of electron and protons in an atom. The sum of protons and neutrons on the other hand gives the mass number.
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B) They both are made of different kinds of particles.
C) They both look speckled or chunky.
D) They both look uniform (the same) throughout.
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D) They both look uniform (the same) throughout.
Further explanation
Pure substance can be any element or compound and is formed from one type of atom/molecule only
Meanwhile, the solution is included in a mixture consisting of 2 or more pure substance
Pure substance can be formed through a chemical process while the mixture is through a physical process
Mixture can be separated by physical processes into components of pure substance while pure substance cannot
The mixture itself consists of a homogeneous and heterogeneous solution
The mixture can be divided into a homogeneous mixture if the composition/ratio of each substance in the mixture is the same and a heterogeneous mixture if the ratio of the composition of the substances is not the same (can be varied) in each place.
Mixtures can also be divided into solutions, suspensions, and colloids based mainly on the size of the particles
Homogeneous mixture = Solution
Heterogeneous mixture = suspension, and
The mixture is located between suspension and solution = Colloid
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Liquid
Gas