3 years ago

How are t cells and b cells same

Chemistry

2 answers:

marissa [1.9K]3 years ago

6 0

They both attack invaders

tigry1 [53]3 years ago

5 0

T cells and B cells are similar because they both deal with fighting of viruses.

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Calculate the weight of keame if he has potential energy of 67J and standing at a hieght of 10m.(take g100m/s)

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Answer:

height(h)=10 m

acceleration due to gravity (g)=10 m/s^2

mass (m)=?

potential energy=67

or,mgh= 67

or,m×10×10=67

or,m=67/100

or,m=0.67 kg

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2 years ago

What is the covalent bonding of calcium chloride

algol13

Answer:

Calcium chloride does not have a covalent bond , it is an ionic bond (which means donation of electrons takes place ). The charge of calcium ions is +2, while the charge of sodium ions is -1. The molecule of calcium chloride contains one calcium ion (+2) and two chloride ions (-1), resulting in an overall charge of 0, or neutral.

IONIC BONDING IN CALCIUM CHLORIDE $(CaCl_2)$

Electron sharing produces covalent compounds, while electron donation produces ionic compounds. $CaCl_2$ is a salt with an ionic bond. This is because calcium takes up an electron to each of the chlorine atoms, resulting in $Ca^2^+$ ions for calcium and $Cl^-$ ions for chlorine. At room temperature, it behaves like a normal ionic halide and is solid. Calcium is a metal with a non-metal sulphate bond.

Thus , Calcium chloride have ionic bonds present on them . No covalent bonds takes place in calcium chloride.

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