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snow_tiger [21]
2 years ago
15

The atomic and mass numbers for four different atoms are given below. Which two are isotopes?

Chemistry
1 answer:
sp2606 [1]2 years ago
4 0
W and X because isotopes have the same atomic number (protons) but different mass and therefore different amounts of neutrons
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¿En dónde se ubican los lípidos solubles?
tatyana61 [14]
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7 0
4 years ago
What is the empirical formula of the mineral Co+Fe+As
dlinn [17]

Answer:

(Co,Fe)As2

Explanation:

The formula of the mineral safflorite, a compound made of cobalt, iron, and arsenic is (Co,Fe)As2. This itself is the imperical formula, it cannot be divided any further

6 0
3 years ago
Is PCl3 ionic or covalent?
mote1985 [20]

Answer:

covalent

Explanation:

P and Cl are non-metals, so bonds between P and Cl are covalent.

8 0
4 years ago
When explaining chemical reactions to a friend, Brianna models a reaction by taking several colors of modeling clay and making a
Ludmilka [50]

Answer:

True

Explanation:

A synthesis reaction is one that involves the combination of more than one reactants to form a single product. This is directly opposite to a decomposition reaction where a complex compound is broken down into various products.

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2. The combination of hydrogen and oxygen to form water

so explaining what Brianna did, the models of clay are the reactants coming together to form a single product which is the sculpture.

5 0
3 years ago
Read 2 more answers
How many molecules are in 5.5 moles of CUNO3?
Setler [38]

Answer:

1.48381734165x 10²⁵ molecules

Explanation:

1 grams CuNo3 is equal to 0.0011897028836018 mole.

x = 5.5 moles

x = 5.5 x 1/0.0011897028836018 = 5.5/0.0011897028836018

4623.003grams

the molar mass of cuno3 =187.56 = 6.02 x10²³

4623.003g = x

187.56x = 4623.003 x 6.02 x10²³  = 27830.47806 x10²³ =  1.48381734165x 10²⁵

4 0
3 years ago
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