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3 years ago

What is the ratio by atoms of elements present in hafnium phosphite?

Chemistry

1 answer:

timurjin [86]3 years ago

3 0

3:6:2 is the correct answer

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The change of seasons is an example of

Montano1993 [528]

Change that has a pattern

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3 years ago

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Convert the scientific notation to a decimal number. Type the correct answer in the box. 4 × 10-5 cm = cm

MakcuM [25]

Answer:

$4 * 10^{-5}cm = 0.00004cm$

Explanation:

Given

$4 * 10^{-5}cm = [\ ]cm$

Required

Solve

Apply law of indices

$4 * \frac{1}{10^5}cm = [\ ]cm$

Evaluate 10^5

$4 * \frac{1}{100000}cm = [\ ]cm$

$4 * 0.00001cm = [\ ]cm$

$0.00004cm = [\ ]cm$

Hence:

$4 * 10^{-5}cm = 0.00004cm$

3 0

3 years ago

What variable represents specific heat in the equation Q = mcAT?

Elan Coil [88]

Answer: A. The variable c

============================================

Explanation:

Q = heat transferred

m = mass

c = specific heat

$\Delta T$ = delta T = change in temperature

4 0

3 years ago

Imagine that Zapata was able to fly his machine far out into outer space. What do you predict would happen to Zapatas forward mo

scoray [572]

Answer:

B if they run out of fuel then they would probably keep going because there is nothing that would stop them other than like a planet or something.

Explanation:

5 0

2 years ago

HELP PLSSSSS!!

11Alexandr11 [23.1K]

Answer:

68133080.02 g

Explanation:

I believe that the question is to find the mass of air in the room and not the molar mass of air since the molar mass of air was already given in the question as 28.97 g/mol.

Now, if 1 mole of a gas occupies 22.4 L

x moles of air occupies 52,681,428.8 Liters

x = 1 * 52,681,428.8 /22.4

x = 2351849.5 moles of air

Now, number of moles = mass/ molar mass

but molar mass = 28.97 g/mol

2351849.5 = mass/28.97

mass = 2351849.5 * 28.97

mass = 68133080.02 g

7 0

3 years ago