All categories

3 years ago

PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Chemistry

2 answers:

Drupady [299]3 years ago

8 0

Answer:

Reactivity

Explanation:

yes

WITCHER [35]3 years ago

7 0

Answer:

Reactivity

Explanation:

Luster. Ductile, and Malleabillity are all physical.

You might be interested in

In which of the following is the symbol for the ion and the number of electrons it contains given correctly?

tensa zangetsu [6.8K]

The answer is A. .....

4 0

3 years ago

Which of the following equations can be used to determine the change in enthalpy of a system? A. `DeltaH_"reaction"=DeltaH_"prod

Nostrana [21]

<u>Answer:</u> The correct answer is Option D.

<u>Explanation:</u>

Enthalpy change is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as $\Delta H^o$

The equation used to calculate enthalpy change is of a reaction is:

$\Delta H^o_{rxn}=\sum [n\times \Delta H^o_f_{(product)}]-\sum [n\times \Delta H^o_f_{(reactant)}]$

Hence, the correct answer is Option D.

6 0

3 years ago

Which type of organism helps return nutrients from dead plants and animals to the soil. A producer. B prey. C predator. D decomp

Gnom [1K]

The answer is D. Decomposer

8 0

3 years ago

Read 2 more answers

Is the boiling point of oxygen higher than nitrogen's

PSYCHO15rus [73]

The boiling point of oxygen is higher than nitrogen's boiling The reason the boiling point of O2 is higher is not because of increased van der Waals interactions, but simple physics. The mass of a molecule of O2 is greater than that of a molecule of N2, so the molecule of O2 traveling at a speed sufficient to break out of the liquid phase has a greater kinetic energy than an analogous N2 molecule. The net effect is that more energy must be distributed throughout a sample of O2 to achieve a given vapor pressure (in this case equal to atmospheric pressure) than for a sample of N2. More energy means greater temperature.

8 0

4 years ago

7. You found that 1.50 ml of a liquid has mass of 2.750g. What is the density of the unknown liquid?

zlopas [31]

To find density, you just divide the mass by the volume (density is the measurement of the amount of mass in a certain volume):

$density=\frac{mass}{volume}=\frac{2.750\ g}{1.50\ mL}=1.833\ g/mL$

3 0

3 years ago