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2 years ago

What consists of two protons and two neutrons and is positively charged

Chemistry

1 answer:

erik [133]2 years ago

5 0

Answer:

it will metal that consists of two protons and two neutrons and positive charge bcz metal can loos electron to form positive charg

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What are unit conversions used for?

lbvjy [14]

Answer:

B: Unit conversions express an amount in a different unit.

Explanation:

6 0

3 years ago

What is the mass of 8.12 × 10^23 molecules of CO2 gas? (Atomic mass of carbon = 12.011 u; oxygen = 15.999 u.)

amid [387]

Answer:

$m=59.3gCO_2$

Explanation:

Hello,

In this case, the first step is to compute the molar mass of carbon dioxide as shown below, considering it has one carbon atom and two oxygen atoms:

$M=12.011g/mol+2*15.999g/mol\\\\M=44.009g/mol$

It is important to notice it is the mass in one mole of such compound. Afterwards, we need to use the Avogadro's number to compute the how many moles are in the given molecules of carbon dioxide as shown below:

$mol=8.12x10^{23}molec*\frac{1mol}{6.022x10^{23}molec} =1.35mol$

Finally, the mass by using the molar mass:

$m=1.35mol*\frac{44.009g}{1mol} \\\\m=59.3gCO_2$

Best regards.

4 0

2 years ago

How do you test for carbon dioxide ?? Explain

g100num [7]

Answer:

Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate

Explanation:

. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white

5 0

2 years ago

Predict what the Co, levels will be when you are "old". How many plants/trees need to be planted now to keep carbon dioxide in t

Anna [14]

Answer:

A lot of them.

Explanation:

It would take hundreds of thousands of trees to clear all of the emmisions.

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3 years ago

Which of the following tends to form anions when bonding with other elements?

yarga [219]

Answer: it’s D

Explanation:

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2 years ago

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