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Tresset [83]
3 years ago
11

In a graph, what effect would adding a catalyst have on D?

Chemistry
2 answers:
Anika [276]3 years ago
7 0
It would decrease hope this helps
CaHeK987 [17]3 years ago
3 0

Answer:

C. It would stay the same

Explanation:

PLATO answer

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Give the number of significant figures in this number: 7.8 x 10¹²
denis-greek [22]
The number is written in scientific notation.


The significant figures are the numbers known precisely plus 1 digit that is uncertain.


When the numbers are expressed in scientific notation all the digits before  10^n are significant.


So, 7 and 8 are significant figures and the answer is that the number of significant figures is 2.


Answer: 2
8 0
4 years ago
Which equation represents the reaction of acetic (ethanoic) acid with water?
xz_007 [3.2K]
Chemical equation:

<span>CH</span>₃<span>COOH + H</span>₂<span>O = CH</span>₃<span>COO</span>⁻<span> + H</span>₃<span>O</span>⁺

hope this helps!
5 0
3 years ago
Carbordum is silicon carbide SiC a very hard material used as an abrasive on sand paper and in other applications. it is prepare
AleksandrR [38]

Answer:

4.5 kilograms of silicon dioxide is required to produce 3.00 kg of SiC.

Explanation:

The balanced equation for the reaction between silicon dioxide and carbon at high temperature is given as:

SiO_2+3C\rightarrow SiC+2CO

1 mole silicon dioxide reacts with 3 moles of carbon to give 1 moles of silicon carbide and 2 moles of carbon monoxide.

Mass of SiC = 3.00kg = 3000.00 g

1 kg = 1000 g

Molecular mass of SiC = 40 g/mol

Moles of SiC = \frac{3000.00 g}{40 g/mol}= 75 mol

According to reaction, 1 mole of SiC is produced from 1 mole of silicon dioxide.

Then 75 moles of SiC will be produce from:

\frac{1}{1}\times 75 mol=75 mol of silicon dioxide.

mass of 75 moles of silicon dioxde:

75 mol\times 60 g/mol=4500 g=4.5 kg

4.5 kilograms of silicon dioxide is required to produce 3.00 kg of SiC.

3 0
4 years ago
What is the Lewis structure of CH3F
Yanka [14]
I need help as well?!
8 0
3 years ago
HELP ASAP WROTH 20 POINTS
Xelga [282]

Answer:

Im pretty sure its DNA

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8 0
3 years ago
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