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maksim [4K]
3 years ago
13

PLEASE ANSWER

Chemistry
1 answer:
Makovka662 [10]3 years ago
8 0

Answer:

Answer is D

Explanation:

xrays would be far more efficient at detecting objects through solids.

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Mice21 [21]
Salt, salt water are both mixtures if i remember from chemistry
6 0
3 years ago
From carbon dioxide, hydrogen, maltose, and ammonia which one is the largest
ollegr [7]

Explanation:

maltose is your answer

hope it's helpful for you

4 0
2 years ago
What is the molecular weight of water? (numbers only, to nearest 0.1)
yulyashka [42]

The molecular weight of a substance is calculated by adding the molecular mass of each element present in the molecule multiplied by the number of times each element is in the molecule. For greater clarity, we can organize a table that allows us to do the calculations. We have the following structure for water:

The molecular weight of water will be:

2.01568 + 15.999 = 18.0468=18.0 g/mol

Answer= 18.0

4 0
1 year ago
Match the element with its description. Match Term Definition Lithium A) Highly reactive gas Lead B) Nonreactive gas Fluorine C)
eduard

Lithium - Malleable, soft, and shiny

Lead - Opaque solid with higher density

Fluorine - Highly reactive gas

Krypton - Nonreactive gas

*<em>hope I helped :)</em>*

6 0
3 years ago
Cobalt-60, with a half-life of 5.0 days, is used in cancer radiation treatments. A hospital purchases a 30.0g supply of it and s
Rudik [331]

Answer:

Bottle is sitting on the shelf for 15 days.

Explanation:

Given data:

Co-60 half life = 5 days

Total amount = 30.0 g

Amount left = 3.75 g

Time taken = ?

Solution:

AT time zero = 30 g

AT first half life= 30g /2 = 15 g

At 2nd half life = 15 g/ 2 = 7.5 g

At 3rd half life = 7.5 g/2 = 3.75 g

Now we will calculate the sitting time of bottle.

Half life = Time taken / number of half lives

3× 5 days = time taken

Time taken = 15 days

Bottle is sitting on the shelf for 15 days.

8 0
3 years ago
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