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kherson [118]
3 years ago
12

ESCOJA UNA DE LAS CULTURAS ESTUDIADAS Y SELECCIONE UNA POSICIÓN SOCIAL DENTRO DE LA CULTURA (RELIGIOSA, GOBERNADOR LOCAL, ETC.)

E INVESTIGARA SOBRE ELLA
Chemistry
1 answer:
Trava [24]3 years ago
7 0

Answer:10^2

Explanation:

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Which of the following would be considered a strong base?
DerKrebs [107]
Ca(OH)2 is a strong base.

It’s name is calcium hydroxide and often it is easy to tell if something is a strong base if it has (OH) in the name.
5 0
3 years ago
Interpretacao gerais das praticas <br>sobre densidade de amostra solido e liquido<br>​
Savatey [412]

Answer:

O sólido tem densidade mais alta em comparação ao líquido.

Explicação:

A densidade da amostra sólida é maior do que a densidade do líquido porque há pouco espaço entre as partículas do sólido. A densidade tem relação inversa com o volume de uma substância, se uma substância ocupa mais espaço então sua densidade é menor, enquanto se a substância ocupa menos espaço então tem maior densidade. As substâncias sólidas ocupam menos espaço em comparação com as substâncias líquidas, então podemos dizer que a densidade do sólido é maior do que as substâncias líquidas.

6 0
3 years ago
Why are isotopes with short half-lives not useful for dating very old rocks?
seropon [69]

Answer:

because not enough of the parent isotope remains to measure accurately. because not enough of the daughter product has formed to be detectable.

Explanation:

Hope it helps

6 0
3 years ago
Equation is balanced already
mojhsa [17]

Answer:

1.) 13 g C₄H₁₀

2.) 41 g CO₂

Explanation:

To find the mass of propane (C₄H₁₀) and carbon dioxide (CO₂), you need to (1) convert mass O₂ to moles O₂ (via molar mass), then (2) convert moles O₂ to moles C₄H₁₀/CO₂ (via mole-to-mole ratio from equation coefficients), and then (3) convert moles C₄H₁₀/CO₂ to mass C₄H₁₀/CO₂ (via molar mass). It is important to arrange the ratios in a way that allows for the cancellation of units. The final answers should have 2 sig figs to match the sig figs of the given value.

Molar Mass (C₄H₁₀): 4(12.011 g/mol) + 10(1.008 g/mol)

Molar Mass (C₄H₁₀): 58.124 g/mol

Molar Mass (CO₂): 12.011 g/mol + 2(15.998 g/mol)

Molar Mass (CO₂): 44.007 g/mol

Molar Mass (O₂): 2(15.998 g/mol)

Molar Mass (O₂): 31.996 g/mol

2 C₄H₁₀ + 13 O₂ ----> 8 CO₂ + 10 H₂O

 48 g O₂             1 mole             2 moles C₄H₁₀            58.124 g
---------------  x  -----------------  x  -------------------------- x  ------------------  =  
                         31.996 g              13 moles O₂               1 mole

=  13 g C₄H₁₀

 48 g O₂             1 mole               8 moles CO₂            44.007 g
---------------  x  -----------------  x  -------------------------- x  ------------------  =  
                         31.996 g              13 moles O₂               1 mole

=  41 g CO₂

6 0
2 years ago
What is the numbers of molecules for 65.8g of CO2?
baherus [9]

Answer:

One gram of carbon dioxide contains 13.6 x 10²¹ number of molecules.

Explanation:

4 0
2 years ago
Read 2 more answers
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