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marishachu [46]
3 years ago
7

(PLEASE ANSWER + BRAINLIEST !!)

Chemistry
1 answer:
MatroZZZ [7]3 years ago
7 0
A gamma ray has a mass and atomic number of 0 meaning it doesn’t effect the nucleus.
E.g
60 60 0
Co —> Co + gamma ray
27 27 0

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The atomic number and the mass number of 18 and 40. Write the information conveyed by this statement.​
VashaNatasha [74]
There are 18 protons and electrons and 22 neutrons in the atom
8 0
3 years ago
What are the parts of the earths mantle? A) Inner core, asthensophere, lithosphere
In-s [12.5K]

Answer:

B

Explanation:

The mantle is composed of the mesosphere and the asthenosphere in the upper most part and in the crust is the lithosphere

5 0
3 years ago
Using the diagram , what is the intersection of plan ABCD and GC?
Oduvanchick [21]

Answer:

C

Explanation:

When a line segment and a plane intersect, they intersect at a point. They both coincide on point C

7 0
2 years ago
Use the Lewis model to determine the formula for the compound that forms from each pair of atoms.
Oksi-84 [34.3K]

Answer:

KI

Explanation:

K is 1+  & I is 1- so we need 1 of each to balance out the compound.

8 0
3 years ago
What mass of natural gas (CH4) must you burn to emit 264 kJ of heat?
mariarad [96]
The heat released by cpmolete the combustion of organic products with oxygen is called heat of combustion.

Here 1 mol of CH4 realesed 802.3 KJ

To emit 264 kJ you multiply you need (1 mol of CH4/802.3 kJ)* 264 kJ = 0.329 mol of CH4

The molar mass, MM, of CH4 is 12 g/mol + 4*1g/mol = 16 g/mol

The to obtain the mass multiply the number of moles times the molar mass:

mass = n * MM = 0.329mol * 16g/mol = 5.26 grams

Answer: 5.26 grams



7 0
2 years ago
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