All categories

8 months ago

Using Table 2: Common Radioactive Isotopes, identify the radioisotope that you

Chemistry

1 answer:

TiliK225 [7]8 months ago

3 0

Answer:

Explanation:

Table 2: Common RadioactiveIsotopesUse this table to identify the most likely radioactive material used in theassault.Type ofSourceHalf-lifeRadiationCalifornium-252aIndustrial2.6 years-Used to test luggage for hiddenexplosives-Used to gauge moisture levels of soil fortheconstructionindustryCesium-137,')'Industrial30 years-Used in radio-tracing to identify sources ofsoilerosion anddeposition-Used to determine if oil wells are plugged withsand-Used to measure flow of fluids inpipesMedical-Used in cancertreatmentCobalt-60,')'Industrial5.2 years-Usedto check for cracks inpipesMedical-Used to sterilizeinstrumentsCurium-244aIndustrial18.1 years-Used in mining to analyze the materials dugfrompitsIodine-131,')'Medical8.0 days-Used to diagnose and treat human diseases ofthethyroidPlutonium-239a,yNuclear24,110years-Used as heat source in electricity generatorsonsomespacecraft-Used to buildthermonuclear weaponsPolonium-210a,yIndustrial138 days-Used to reduce static electricityin anindustrialsetting.

You might be interested in

PLS ANSWER ASAP

Kazeer [188]

The answer is c this is the answer

7 0

2 years ago

Read 2 more answers

Scientists have discovered how to use electricity to power cars. Running cars on electricity could help

Fiesta28 [93]

Running cars on electricity would conserve gasoline because electric cars do not use the same resources.

Hope this helps!

8 0

2 years ago

Read 2 more answers

Question 1

mel-nik [20]

One is ocean
Two is green house effect is the trapping of gas in the atmosphere and global warming is the heating of the earth
Three is option one

3 0

3 years ago

I NEED HELP ASAPPP!! I WILL GIVE YOU A GOOD RATING LOL

ruslelena [56]

Answer:

Yes N3- is correct ion notation. The N element is in the form N2 . Also it is a triple covalent bond and so this correct

3 0

2 years ago

A 57.07 g sample of a substance is initially at 24.3°C. After absorbing of 2911 J of heat, the temperature of the substance is 1

icang [17]

Answer:

Approximately $0.551\; \rm J\cdot kg^{-1} \cdot \left(^\circ\! C \right)^{-1}$ .

Explanation:

The specific heat of a material is the amount of energy required to increase unit mass (one gram) of this material by unit temperature (one degree Celsius.)

Calculate the increase in the temperature of this sample:

$\Delta T = (116.9 - 24.3)\; \rm ^\circ\! C= 92.6\; \rm ^\circ\! C$ .

The energy that this sample absorbed should be proportional the increase in its temperature (assuming that no phase change is involved.)

It took $2911\; \rm J$ of energy to raise the temperature of this sample by $\Delta T = 92.6\; \rm ^\circ\! C$ . Therefore, raising the temperature of this sample by $1\; \rm ^\circ\! C$ (unit temperature) would take only $\displaystyle \frac{1}{92.6}$ as much energy. That corresponds to approximately $31.436\; \rm J$ of energy.

On the other hand, the energy required to raise the temperature of this material by $1\; \rm ^\circ\! C$ is proportional to the mass of the sample (also assuming no phase change.)

It took approximately $31.436\; \rm J$ of energy to raise the temperature of $57.07\; \rm g$ of this material by $1\; \rm ^\circ C$ . Therefore, it would take only $\displaystyle \frac{1}{57.07}$ as much energy to raise the temperature of $1\; \rm g$ (unit mass) of this material by $1\; \rm ^\circ \! C\!$ . That corresponds to approximately $0.551\; \rm J$ of energy.

In other words, it takes approximately $0.551\; \rm J$ to raise $1\; \rm g$ (unit mass) of this material by $1\; \rm ^\circ \! C$ . Therefore, by definition, the specific heat of this material would be approximately $0.551\; \rm J\cdot kg^{-1} \cdot \left(^\circ\! C \right)^{-1}$ .

8 0

2 years ago