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Semenov [28]
2 years ago
14

1 You place a 28.95-g piece of gold in a 10-ml graduated cylinder. The level of the water rises 1.50 mL. What is the density of

gold?​
Chemistry
1 answer:
shutvik [7]2 years ago
5 0

Answer:

What mass of silver will raise the level of the water in the graduated cylinder 1.50 mL? (Ans) 28.95 g / 1.50 mL = 19.3 g/mL (The gold's density)

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Is it true that an atom has 3 subatomic particles with a negative nucleus and the neutrons outside the the nucleus
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Answer: atoms do have 3 subatomic particles but the nucleus is positive and the nucleus consists of protons and neutrons. Its positive because neutrons have no charge and protons have a positive charge. There are only electrons on the shells so no neutrons or protons on the shells

Explanation:

5 0
2 years ago
If you have 2.1 liters of hydrogen gas (at STP), what mass of hydrogen gas would you have?
GuDViN [60]

Answer:

0.19 g

Explanation:

Step 1: Given data

Volume of hydrogen at standard temperature and pressure (STP): 2.1 L

Step 2: Calculate the moles corresponding to 2.1 L of hydrogen  at STP

At STP (273.15 K and 1 atm), 1 mole of hydrogen has a volume of 22.4 L if we treat it as an ideal gas.

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0.094 mol × 2.02 g/mol = 0.19 g

6 0
3 years ago
The difference between the initial (first) position and the final position of an object
Anna [14]
It is called DISPLACEMENT of the object....
3 0
3 years ago
7. Which 2 structures, in the digestive system, reabsorb water into the body? _____________________ and ______________________
HACTEHA [7]
7. Large Intestine and chemical digestion
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3 0
3 years ago
Gallionella bacteria can get energy from the reaction fe2+ → fe3+. This reaction is an example of
djverab [1.8K]

The gallionella bacteria  reaction

that is Fe2+ →  Fe3+ is example of  oxidation reaction (answer A)

Explanation

oxidation reaction reaction occurs when electrons are lost during reaction by a molecule or ion or atom. when oxidation occurs  the oxidation state of the molecule or ion or atom increases. For this reason Fe2+ → Fe3+ is a oxidation reaction since the oxidation state move from oxidation state 2 to 3


4 0
3 years ago
Read 2 more answers
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