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zheka24 [161]
3 years ago
8

There are 7 named classes of hazardous materials. O True O False

Chemistry
1 answer:
Anika [276]3 years ago
7 0
False

there is actually 9
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6. List two (2) ethical issues that the healthcare provider has a public duty to report.
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Answer: Communicable diseases, abuse gunshot wounds and forensic medicine

Explanation:

3 0
3 years ago
The temperature of a 100.0 g sample of water is raised from 30degrees celsius to 100.0 degrees celsius. How much energy is requi
worty [1.4K]

Answer:

29260J

Explanation:

Given parameters:

Mass of water sample  = 100g

Initial temperature = 30°C

Final temperature  = 100°C

Unknown:

Energy required for the temperature change = ?

Solution:

The amount of heat required for this temperature change can be derived from the expression below;

     H  = m c (ΔT)

H is the amount of heat energy

m is the mass

c is the specific heat capacity of water  = 4.18J/g°C

ΔT is the change in temperature

Now insert the parameters and solve;

          H  = 100 x 4.18 x (100 - 30)

          H  = 100 x 4.18 x 70 = 29260J

6 0
3 years ago
What is the percent of composition by mass of hydrogen in NH4HCO3 (gram-formualmass=79 grams/mole)?
musickatia [10]
5/79=0.063
0.063 x 100 = 6.3%
5 0
3 years ago
Orbitals which valence electrons are found for calcium
galina1969 [7]
The 4th energy level (row), 's' orbital block, 2nd group (column). The valence electrons are found in the highest energy level of the electron configuration in the 's' and 'p' orbitals. In the case of calcium this is 4s2 . This gives calcium an 's' orbital with a pair of electrons in its valence shell
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3 years ago
Suppose 0.09886 M KOH is titrated into 15.00 mL H2SO4 of unknown concentration until the equivalence point is reached. It takes
Mamont248 [21]

Answer:0.0014458

That’s the right one

3 0
4 years ago
Read 2 more answers
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