2 years ago

SCIENCE:how can i model a ice cream maker melting!?

Chemistry

1 answer:

lord [1]2 years ago

6 0

Answer:

BURN IT ALIVE MUHAHAHAHAHA

Explanation:

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Help please I need it bad

natta225 [31]

= 9.1 × 10^6
(scientific notation)

= 9.1e6
(scientific e notation)

= 9.1 × 10^6
(engineering notation)
(million; prefix mega- (M))

= 9100000
<span>(real number)</span>

5 0

3 years ago

A chemist measures the energy change ?H during the following reaction: 2HgO (s) ?2Hg (l) +O2 (g) =?H182.kJ Use the information t

Elan Coil [88]

Answer:

A. endothermic.

A. Yes, absorbed.

Explanation:

Let's consider the following thermochemical equation.

2 HgO(s) ⇒ 2 Hg(l) + O₂(g) ΔH = 182 kJ

The enthalpy of the reaction is positive (ΔH > 0), which means that the reaction is endothermic.

182 kJ are absorbed when 2 moles of HgO react (molar mass 216.59 g/mol). The heat absorbed when 72.8 g of HgO react is:

$72.8g.\frac{1mol}{216.59g} .\frac{182kJ}{2mol} =30.6kJ/mol$

6 0

3 years ago

Why does the density of a substance stay constant even if the mass of the substance increases?

olganol [36]

Answer:

If the mass stays constant the object's density decreases as the volume increases. ... Because the property of density is a constant for all variables, density can be used to identify the material an object is made of.

Explanation:

5 0

2 years ago

Use the periodic to fill in the numbers in the electron configurations shown below

grigory [225]

Your answer to your question is: 1s² 2s² 2p⁶

4 0

3 years ago

Suppose that a dependent quantity increases when the independent quantity is decreased. This kind of proportional relationship b

Anna71 [15]

I thinks it’s not this article we should cajnges it

3 0

2 years ago